Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Barramundi is naturally a mass spawning species, which can be induced to spawn in captivity under conditions that attempt to replicate the natural environment. The Australian Barramundi industry has on hand a large number of mature broodstock that are currently supplying the grow-out market, however, before selective breeding programs can begin, it is important to assess the levels of genetic diversity and relatedness of current captive broodstock populations.

Mass spawning hatchery practices using small broodstock populations, in addition to the cannibalistic nature of some fish species, contribute to a reduction of genetic diversity from parent to offspring and throughout the juvenile grow-out stages. This is of concern when establishing a selective breeding program for such species because the genetic diversity that is captured in the start-up and initial generations of the program is the basic ingredient for future genetic improvement. The aim of this thesis was to examine methods for capturing and conserving genetic diversity in mass spawning Barramundi (Lates calcarifer), when constructing a base population for a long-term selective breeding program for the species.

The results suggest that a mass spawning group of at least 30 Barramundi individuals is required to achieve a high participation rate of breeders and to limit the loss of genetic variation transferred to the offspring. Options for selecting candidates to compose a founding population were explored, and recommendations made to promote the longevity and impact of a selective breeding program for Barramundi.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.

Fish flesh contains high levels of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA) such as eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) are beneficial for human health to help brain and neural development, decrease the risk of cardiovascular disease and help various other aspects of human lives. EPA and DHA can be synthesised via the LCPUFA synthesis pathway in fish from α-linolenic acid (ALA) which is abundant is some plant oils which are totally devoid of n-3 LCPUFA. Captured fish are currently used as a source of fish oil to feed fish in aquaculture, but capture fisheries are currently at their limit and using captured fish stocks as aquaculture feed is unsustainable and therefore alternative lipid sources to replace fish oil are required to allow the aquaculture industry to continue growing.

This research investigated dietary fish oil replacement with plant or terrestrial animal oils and its impact on the seafood product quality of Yellowtail Kingfish (Seriola lalandi), an important aquaculture species in South Australia. It investigated how this replacement affected the expression of the fatty acid synthesis genes ∆6 fatty acyl desaturase (∆6 fads) and fatty acyl elongase (elovl), and the antioxidant genes peroxiredoxin 1 and 4 (Prx1 and 4) and glutathione peroxidase 1 and 4 (GPx1 and 4).
It was found that fish oil substitution with canola oil and poultry oil did not significantly change the expression of the fads or elovl genes. The antioxidant genes also showed no significant changes in gene expression except for GPx1 which showed an increased expression in fish fed the canola oil-based diet compared to fish fed the fish oil-based diet. Based on these results, and the results of the hepatosomatic indices, it is proposed that GPx1 expression may be up-regulated in fish fed the canola oil-based diet due to increased immune system activity as a result of the relatively high concentration of omega-6 fatty acids in their flesh.