256 results

Spawning and larval rearing research on King George whiting (Sillaginodes punctata) relevant to aquaculture and fisheries biology

Project number: 1997-314
Project Status:
Completed
Budget expenditure: $292,158.86
Principal Investigator: Wayne G. Hutchinson
Organisation: SARDI Food Safety and Innovation
Project start/end date: 29 May 1997 - 14 Apr 2004
Contact:
FRDC
TAGS
Sustainability
Reproduction
Market Opportunities
Husbandry
Behaviour

Need

After southern bluefin tuna, King George whiting is the most important fish species in South Australia. This species attracts a high market price on local and interstate markets and has biological attributes which suggest that is has good potential as a candidate for aquaculture. To allow commercialisation of this species, there is an immediate need to commence research to control egg production and conduct larval rearing trials to expose and solve culture problems so that a valid assessment of this species can be provided to aquaculturalists and investors.

FRDC funded research on the reproductive biology of wild King George whiting has identified a need to determine the spawning frequency of individual fish to get accurate estimates of fecundity.

There is a need to recognise that aquaculture is the only way to increase production of small volume coastal fisheries, such as that for King George whiting, without increasing fishing pressure on natural populations.

There is a need to develop aquaculture of coastal marine finfish species as an option which has potential to allow commercial fishers to diversify and reallocate effort to reduce pressure on wild stocks.

Objectives

1. Establish two breeding stocks of King George whiting and control egg production from one stock during the natural spawning season and from the other stock six months out-of-season.
2. Identify spawning frequency and periodicity to provide an accurate estimate of fecundity for fishery models.
3. Complete intensive larval rearing investigations to define environmental tolerances of larvae and to expose and solve problems during the larval culture period.
4. Document the behaviour of larvae in the water column at different stages of development.
5. Assess the potential of larval culture of King George whiting for commercial aquaculture.

Final report

ISBN: 0-7308-5299-7
Author: Wayne Hutchinson
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Final Report • 2003-10-02 • 2.59 MB
1997-314-DLD.pdf
Environment

Abalone Aquaculture Subprogram: manufactured diet development

Project number: 1996-385
Project Status:
Completed
Budget expenditure: $512,132.00
Principal Investigator: Meegan Vandepeer
Organisation: SARDI Food Safety and Innovation
Project start/end date: 16 Feb 1997 - 6 Nov 2005
Contact:
FRDC
SPECIES
Abalone

Need

Commercial in confidence. To know more about this project please contact FRDC.

Objectives

Commercial in confidence

Condition and its assessment in the southern rock lobster. Field application of the techniques for condition assessment developed in the laboratory

Project number: 1996-160
Project Status:
Completed
Budget expenditure: $249,591.00
Principal Investigator: Richard Musgrove
Organisation: SARDI Food Safety and Innovation
Project start/end date: 31 Dec 1996 - 7 Jun 2004
Contact:
FRDC
TAGS
Reproduction
Physiology
Life History

Objectives

1. Obtain an understanding of variations in growth and recruitment through the establishment of the potential of selected indices to characterise temporal and spatial changes in condition of lobsters within the fishery.

Final report

ISBN: 0-7308-5298-9
Author: Richard Musgrove
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf
Final Report • 2003-09-09 • 1.18 MB
1996-160-DLD.pdf

Survey sampling design and length-frequency data analysis for on-going monitoring and model parameter evaluation in the South Australian rock lobster fishery

Project number: 1995-138
Project Status:
Completed
Budget expenditure: $219,836.43
Principal Investigator: Richard McGarvey
Organisation: SARDI Food Safety and Innovation
Project start/end date: 28 Jun 1996 - 30 Aug 1999
Contact:
FRDC
TAGS
Survey
Stock Assessment
Population Dynamics
Mortality
Modelling

Objectives

1. To establish a formal protocol for a length-frequency sampling survey which satisfies the two basic statistical criteria of accuracy and precision, specifically, (1) non-biased means, and (2) quantifiable variances.
2. To incorporate the desires of the fishing industry in the practicalities of length sampling, through extensive consultation and workshops, where fishers will ultimately decide the protocol adopted, while still conforming to the criteria of 1. above that assure the quality of survey information.
3. To assess the range of stock assessment methods available for analysing length frequencies to estimate the fundamental population dynamic parameters describing the South Australian lobster fishery, notably, annual recruitment, annual egg production, mortality, and size structure.

Final report

Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf
Final Report • 2017-09-29 • 1.94 MB
1995-138-DLD.pdf

Feasibility assessment of an adaptive management experiment in the SA lobster fishery

Project number: 1995-137
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Jim Prescott
Organisation: SARDI Food Safety and Innovation
Project start/end date: 27 Jun 1997 - 30 Jun 1997
Contact:
FRDC
TAGS
Workshop
Recreational Fishing
Innovation
Fisheries Management
Economic

Objectives

1. Identify alternative hypotheses and develop several options whereby the lobster population could be manipulated by commercial fishing activity to achieve a desired experimental treatment and control eg high and low population densities
2. Conduct analyses to determine the experimental parameters eg length of experiment, spatial scale of experiment, experimental design (replicates etc). Determine local and zone scale social, operational and economic impacts.
3. Conduct a series of workshops where commercial and recreational sectors, managers and enforcement officers can have input
4. Develop a consensus view on one option for conducting the experiment. A research proposal based on this option would then be drafted, if consensus can be reached. The proposal would detail costs of research, management and enforcement.

Immuno-staining of a ciliate protozoan causing significant mortalilty of farmed tuna: the development of a rapid identification technique which will enable improved farm management practices to be implemented to minimise fish mortality

Project number: 1995-083
Project Status:
Completed
Budget expenditure: $60,860.00
Principal Investigator: Barry Munday
Organisation: SARDI Food Safety and Innovation
Project start/end date: 25 Oct 1995 - 29 Jun 2001
Contact:
FRDC
TAGS
Pollution
Nutrition
Mortality
Fishing Gear
Disease

Objectives

1. To develop the use of immuno-staining as a rapid disgnostic test which can be used on site (Port Lincoln) to accurately identify the ciliate protozoan of concern
2. Using the diagnostic test developed, screen potential sources of infection associated with farming tuna ( seawater and sediment around cages, organic matter fouling nets, feeds and feed preparation methodologies etc)
3. Disseminate research and resultant recommendations on improved farm management strategies to tuna farmers so as to minimise mortality of farmed fish
4. To maximise the benefits obtained by tuna farming industry from the presently funded position, Research Officer - fish health ( National Training COmpany Scheme and TBOAA), based in Port Lincoln and the partnerships that have been established to facilitate research on industry priority topics

Final report

ISBN: 0-642-32054-3
Author: Barry Munday
Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Final Report • 2000-01-01 • 2.17 MB
1995-083-DLD.pdf

Summary

An immunofluorescent staining technique for the rapid detection of the ciliate protozoan Uronema sp. was developed during 1995 and 1996. The initial test was developed using seven cultures of Uronema sp. from various sources which were identified as Uronema nigricans  by microscopical and histochemical techniques. These seven strains were maintained in a medium containing bacteria as their food source. Antisera against two of the strains were raised in rabbits and against one in sheep. These were then adsorbed with the bacteria and unrelated ciliates to eliminate cross-reactivity.

More recently, an axenic (bacteria-free) culture of Uronema sp. has been accomplished and high-titre antisera raised in rabbits for use in the immunofluorescent staining technique.

Arrangements have been made to have a monoclonal antibody to the axenic Uronema prepared at the Atlantic Veterinary College, University of Prince Edward Island in Canada. This will then provide a reliable supply of highly specific antibody for future research in this area.

The substantial southern bluefin tuna mortality event in 1996 impacted on the delivery of the project objectives, particularly those associated with the application of the immuno-staining technique developed to:

  • screen potential sources of infection associated with farming tuna; and based on this
  • provide advice to farmers on how to improve farm management techniques so as to minimise infections.

Keywords: Uronema, aquaculture, southern bluefin tuna.

Development of an in vitro assay for the assessment of alternative protein sources for use in artificial diets for farmed southern bluefin tuna

Project number: 1995-068
Project Status:
Completed
Budget expenditure: $209,028.00
Principal Investigator: Robert van Barneveld
Organisation: SARDI Food Safety and Innovation
Project start/end date: 25 Oct 1995 - 7 Sep 1999
Contact:
FRDC
TAGS
Physiology
Nutrition
Energy
Energy
Aquaculture

Objectives

1. To enhance the development of artificial diets for caged SBFT by using in vitro analysis of feed ingredients to determine protein, amino acid and energy digestibility. This will allow formulation of artificial diets of maximum nutritive value using the most cost-effective ingredients. It will also allow accurate matching of the diet specifications to the nutrient requirements of the SBFT. To accomplish the development of an in vitro assay, this project has the following specific objectives.
2. To determine the ultrastructure of the SBFT small intestine to a) identify the presence of macromolecule transport apparatus and b) to establish the existence of bacteria associated with the intestinal epithelium.
3. To evaluate the enzyme profile of the small intestine and the epithelial associated bacteria and identify bacteria associated with biofilms.
4. To estimate the intestinal capacity to transport the major group of amino acids and peptides.

Final report

ISBN: 0-646-37490-7
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf
Final Report • 1999-07-12 • 1.60 MB
1995-068-DLD.pdf

Biological and ecological research needed for the effective management of the bar-cheeked coral trout and the chinaman cod, including an investigation into the factors controlling sex-change in the serranids (cods, groupers and coral trout).

Project number: 1995-025
Project Status:
Completed
Budget expenditure: $28,550.00
Principal Investigator: Bob Black
Organisation: University of Western Australia (UWA)
Project start/end date: 26 Jun 1995 - 25 May 2000
Contact:
FRDC
TAGS
Reproduction
Recreational Fishing
Population Dynamics
Physiology
Fishing Gear

Objectives

1. The aim of this research programme is to provide data needed for the effective management of serranids, including: Ecological and biological data on the chinaman cod within the Ningaloo recreational fishery.
2. Experimental simulation of line fishing on chinaman cod populations to determine how the social system of this fish is affected by fishing, and its ability to withstand such pressure.
3. Experimental manipulation of chinaman cod social units to determine the mechanisms controlling sex change and the effects of sustained fishing pressure on these mechanisms.
4. Biological and catch data on the bar-cheeked coral trout caught in the Pilbara trawl fishery. A solution to the present wastage of undersized trout caught in this fishery will also be sought.

Final report

ISBN: 0-86422-915-1
Author: Robert Black
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 
Final Report • 2000-01-10 • 2.84 MB
1995-025-DLD.pdf

Summary

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as the epinepheline serranids. Serranids are found throughout the tropical and subtropical marine waters of the world, and are valued catches within numerous fisheries. Although some species in the Caribbean have been well studied, there is generally a lack of detailed biological and ecological data on the serranids. In particular, there is little information on the processes controlling sex change in serranid species. This life history pattern, along with the fact that many are long lived and slow growing, may leave serranids particularly vulnerable to fishing pressure. However, without information on the mechanisms controlling sex-change, specific management options for serranid species remains somewhat speculative. 
 
Various serranid species are targeted or caught as by-catch in Australian tropical waters. Nevertheless, apart from coral trout inhabiting the Great Barrier Reef, the biology and ecology of Australian serranids is poorly understood. The present study focussed on the chinaman cod since it is an important species within the Ningaloo Reef recreational fishery. Because it is abundant and accessible, the chinaman cod was also amenable to the logistically difficult task of determining the mechanisms of sex-change in this species. The study of coral trout biology was commenced in response to the capture of undersized fish within the Pilbara trawl fishery. As the current size limit may not be biologically appropriate, samples obtained from the trawl fishery were used to learn more about the biology of this species. 

Condition and its assessment in the southern rock lobster (Jasus edwardsii). Assessment of condition indices and moult staging techniques

Project number: 1995-017
Project Status:
Completed
Budget expenditure: $140,590.00
Principal Investigator: Richard Musgrove
Organisation: SARDI Food Safety and Innovation
Project start/end date: 28 Jun 1996 - 30 Sep 1998
Contact:
FRDC
TAGS
Supply Chain
Physiology
Fishing Gear

Objectives

1. A. Development of a condition index or indices .To determine the correlation between selected biochemical components, growth and temperature in the laboratory.
2. Moult Staging Techniques. To determine the correlation between moult stage, shell rigidity and pleopod epidermal and setal development for this species. To determine the length of individual moult stages

Final report

Author: Richard Musgrove
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
Final Report • 1998-03-06 • 2.02 MB
1995-017-DLD.pdf

Summary

In July 1993, a program was initiated by the South Australian Research and Development Institute (SARDI) and the South Australian Rock Lobster Research Association (SARLRA) to study the population dynamics of the Southern Rock Lobster.  The study fitted with, and became part of, the tri-state strategic research direction for Southern Rock Lobster.  The program is intended to provide a scientific basis for management of the fishery and reflected concerns of potential over-exploitation in the face of increasing fishing effort and fishing power.  The program includes data collection and analysis at the recruit level as well as modelling of populations and catch forecasting.   Requirements for such analyses include spatial and temporal data on growth, recruitment, and fecundity.  
 
This report details the first part of a study aimed at enhancing the resolution of such data by establishing a field condition index for the Southern Rock Lobster.  The work also included the establishment of a system for moult staging in this species.  The condition assessment methods tested here include tissue RNA DNA ratios, lipid and protein content.
 
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