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People
PROJECT NUMBER • 2013-748.30
PROJECT STATUS:
COMPLETED

Seafood CRC: Introduction to the use of bioeconomics in fisheries management for key decision makers

A bio-economic workshop for fisheries managers was held to discuss the importance of economic objectives and the role of government and industry in attaining those objectives. Participants learnt how economic analyses, such as bio-economics, can identify management changes that can improve fishery...
ORGANISATION:
Seafood CRC Company Ltd
TAGS
Workshop
Sustainability
Social Science
Social Science
Rac Tas

Seafood CRC: future harvest theme leadership

Project number: 2009-712
Project Status:
Completed
Budget expenditure: $130,640.00
Principal Investigator: Caleb Gardner
Organisation: University of Tasmania (UTAS)
Project start/end date: 30 Jun 2009 - 29 Jun 2012
Contact:
FRDC
TAGS
Training
Sustainability
Rac Wa
Harvest Strategy
Fishing Effort
SPECIES
Western Rock Lobster
Southern Rock Lobster
Blacklip Abalone
Greenlip Abalone
Prawns

Need

The Future Harvest Theme is the last of the CRC's initial research themes to be developed. The management of the theme requires significant input from an expert in invertebrate fisheries management - expertise that does not currently reside within the CRC staff.

Objectives

1. To assist the program manger to deliver an effective research theme and its associated outcomes

Final report

ISBN: 978-1-86295-761-9
Author: Caleb Gardner
Final Report • 2015-01-01 • 797.13 KB
2009-712-DLD.pdf

Summary

The CRC has developed the Future Harvest theme business plan to deliver the following outcomes:

  1. Fisheries management delivering maximum benefit from the resource while maintaining stocks above sustainability indicators
  2. Novel management strategies in place which increase economic yield from our fisheries
  3. The technical efficiency of our fishing fleet will be improved to respond to rising costs

Through the following strategies:

  1. Field / pilot trials of novel or alternative management systems
  2. Bioeconomic modelling of specific harvest strategies allowing stakeholders to select optimal fisheries management and harvest systems
  3. Manage change and promote implementation of results in fisheries management and business structures
  4. Improve technical aspects and efficiency of fishing operations
  5. Foster better management and a progressive and collaborative culture by educating and training CRC participants and theme management
Final Report • 2015-01-01 • 797.13 KB
2009-712-DLD.pdf

Summary

The CRC has developed the Future Harvest theme business plan to deliver the following outcomes:

  1. Fisheries management delivering maximum benefit from the resource while maintaining stocks above sustainability indicators
  2. Novel management strategies in place which increase economic yield from our fisheries
  3. The technical efficiency of our fishing fleet will be improved to respond to rising costs

Through the following strategies:

  1. Field / pilot trials of novel or alternative management systems
  2. Bioeconomic modelling of specific harvest strategies allowing stakeholders to select optimal fisheries management and harvest systems
  3. Manage change and promote implementation of results in fisheries management and business structures
  4. Improve technical aspects and efficiency of fishing operations
  5. Foster better management and a progressive and collaborative culture by educating and training CRC participants and theme management
Final Report • 2015-01-01 • 797.13 KB
2009-712-DLD.pdf

Summary

The CRC has developed the Future Harvest theme business plan to deliver the following outcomes:

  1. Fisheries management delivering maximum benefit from the resource while maintaining stocks above sustainability indicators
  2. Novel management strategies in place which increase economic yield from our fisheries
  3. The technical efficiency of our fishing fleet will be improved to respond to rising costs

Through the following strategies:

  1. Field / pilot trials of novel or alternative management systems
  2. Bioeconomic modelling of specific harvest strategies allowing stakeholders to select optimal fisheries management and harvest systems
  3. Manage change and promote implementation of results in fisheries management and business structures
  4. Improve technical aspects and efficiency of fishing operations
  5. Foster better management and a progressive and collaborative culture by educating and training CRC participants and theme management
Final Report • 2015-01-01 • 797.13 KB
2009-712-DLD.pdf

Summary

The CRC has developed the Future Harvest theme business plan to deliver the following outcomes:

  1. Fisheries management delivering maximum benefit from the resource while maintaining stocks above sustainability indicators
  2. Novel management strategies in place which increase economic yield from our fisheries
  3. The technical efficiency of our fishing fleet will be improved to respond to rising costs

Through the following strategies:

  1. Field / pilot trials of novel or alternative management systems
  2. Bioeconomic modelling of specific harvest strategies allowing stakeholders to select optimal fisheries management and harvest systems
  3. Manage change and promote implementation of results in fisheries management and business structures
  4. Improve technical aspects and efficiency of fishing operations
  5. Foster better management and a progressive and collaborative culture by educating and training CRC participants and theme management
Final Report • 2015-01-01 • 797.13 KB
2009-712-DLD.pdf

Summary

The CRC has developed the Future Harvest theme business plan to deliver the following outcomes:

  1. Fisheries management delivering maximum benefit from the resource while maintaining stocks above sustainability indicators
  2. Novel management strategies in place which increase economic yield from our fisheries
  3. The technical efficiency of our fishing fleet will be improved to respond to rising costs

Through the following strategies:

  1. Field / pilot trials of novel or alternative management systems
  2. Bioeconomic modelling of specific harvest strategies allowing stakeholders to select optimal fisheries management and harvest systems
  3. Manage change and promote implementation of results in fisheries management and business structures
  4. Improve technical aspects and efficiency of fishing operations
  5. Foster better management and a progressive and collaborative culture by educating and training CRC participants and theme management
Final Report • 2015-01-01 • 797.13 KB
2009-712-DLD.pdf

Summary

The CRC has developed the Future Harvest theme business plan to deliver the following outcomes:

  1. Fisheries management delivering maximum benefit from the resource while maintaining stocks above sustainability indicators
  2. Novel management strategies in place which increase economic yield from our fisheries
  3. The technical efficiency of our fishing fleet will be improved to respond to rising costs

Through the following strategies:

  1. Field / pilot trials of novel or alternative management systems
  2. Bioeconomic modelling of specific harvest strategies allowing stakeholders to select optimal fisheries management and harvest systems
  3. Manage change and promote implementation of results in fisheries management and business structures
  4. Improve technical aspects and efficiency of fishing operations
  5. Foster better management and a progressive and collaborative culture by educating and training CRC participants and theme management

Species identification of Australia’s most significant octopus fishery – the Western Australian Common Octopus

Project number: 2018-178
Project Status:
Completed
Budget expenditure: $94,058.00
Principal Investigator: Anthony Hart
Organisation: Department of Primary Industries and Regional Development (DPIRD) WA
Project start/end date: 7 Dec 2019 - 29 Jun 2021
Contact:
FRDC
TAGS
Sustainability
Stock Assessment
Rac Wa
Market Opportunities
Fishing Gear
SPECIES
Octopuses

Need

Octopus aff. tetricus or the Western Australian common octopus is an endemic species of the temperate waters of Western Australia. It is closely related to the cosmopolitan O. vulgaris species complex, and the ‘gloomy octopus’, O. tetricus on the east coast of Australia and New Zealand, but has been conclusively identified as a separate species through genetic and morphometric studies (Guzik et al., 2005; Amor et al., 2014). Currently, the common octopus supports the largest single-species octopus fishery in Australia, however the animal caught is an unnamed species, and carries the species affinis “Octopus aff. tetricus” instead. This is not an ideal situation for two reasons. First, it hinders a proper assessment of its significant contribution to the Australian cephalopod fisheries harvest. For example there is no dedicated SAFs report for this species, despite the catch levels harvest being three times greater than the 'Pale Octopus' (Octopus pallidus) from Tasmania, which does have its own SAFs assessment report. Secondly, there is an industry impetus to differentiate the product in the marketplace in order to create a distinct branding of the Western Australian octopus fishery into the future. Thus there is both a scientific/administrative need and a marketing need to formalise the correct species name, and its associated common name.

Objectives

1. Develop a formal species name for Octopus aff. tetricus
2. Develop an approved common name for Octopus aff. tetricus

Final report

Author: Dr Anthony M. Hart and Dr Michael D. Amor
Final Report • 1.68 MB
2018-178-DLD.pdf

Summary

This report summarises the scientific and consultation work undertaken to identify a new species name (Octopus djinda) and new common name (Western Rock Octopus) for the species that supports Australia’s largest octopus fishery, with 734 tonnes harvested in 2022. The species had been previously referred to as Octopus cf. tetricus, or Octopus aff. tetricus, otherwise known as the Gloomy Octopus. The species is endemic to Western Australia, and the work was a collaboration between the Western Australian Fisheries and Marine Research Laboratories (Dr Anthony Hart) and Dr Michael Amor of the Royal Botanic Gardens Victoria and the Western Australian Museum. Type specimens including males and females were sampled from across the species distribution in Western Australia, including from Geraldton, Mandurah, and Esperance. Using the latest technology in evolutionary genetics and multivariate morphology, the specimens were analysed, and a scientific manuscript proving they were a unique species was submitted to the journal Zootaxa. The species’ Holotype and Paratypes were then deposited in the Western Australian Museum. Parallel to this, a stakeholder consultation process investigated a range of options for species names and common names. The new species is now called Octopus djinda, and the new common name is Western Rock Octopus. The name “djinda” is a Noongar word for star, and the Noongar are traditional custodians of the land in South-Western Australia. The description provided by this project will enable proper reporting of catch statistics for Australia’s largest and fastest growing octopus fishery.
Final Report • 1.68 MB
2018-178-DLD.pdf

Summary

This report summarises the scientific and consultation work undertaken to identify a new species name (Octopus djinda) and new common name (Western Rock Octopus) for the species that supports Australia’s largest octopus fishery, with 734 tonnes harvested in 2022. The species had been previously referred to as Octopus cf. tetricus, or Octopus aff. tetricus, otherwise known as the Gloomy Octopus. The species is endemic to Western Australia, and the work was a collaboration between the Western Australian Fisheries and Marine Research Laboratories (Dr Anthony Hart) and Dr Michael Amor of the Royal Botanic Gardens Victoria and the Western Australian Museum. Type specimens including males and females were sampled from across the species distribution in Western Australia, including from Geraldton, Mandurah, and Esperance. Using the latest technology in evolutionary genetics and multivariate morphology, the specimens were analysed, and a scientific manuscript proving they were a unique species was submitted to the journal Zootaxa. The species’ Holotype and Paratypes were then deposited in the Western Australian Museum. Parallel to this, a stakeholder consultation process investigated a range of options for species names and common names. The new species is now called Octopus djinda, and the new common name is Western Rock Octopus. The name “djinda” is a Noongar word for star, and the Noongar are traditional custodians of the land in South-Western Australia. The description provided by this project will enable proper reporting of catch statistics for Australia’s largest and fastest growing octopus fishery.
Final Report • 1.68 MB
2018-178-DLD.pdf

Summary

This report summarises the scientific and consultation work undertaken to identify a new species name (Octopus djinda) and new common name (Western Rock Octopus) for the species that supports Australia’s largest octopus fishery, with 734 tonnes harvested in 2022. The species had been previously referred to as Octopus cf. tetricus, or Octopus aff. tetricus, otherwise known as the Gloomy Octopus. The species is endemic to Western Australia, and the work was a collaboration between the Western Australian Fisheries and Marine Research Laboratories (Dr Anthony Hart) and Dr Michael Amor of the Royal Botanic Gardens Victoria and the Western Australian Museum. Type specimens including males and females were sampled from across the species distribution in Western Australia, including from Geraldton, Mandurah, and Esperance. Using the latest technology in evolutionary genetics and multivariate morphology, the specimens were analysed, and a scientific manuscript proving they were a unique species was submitted to the journal Zootaxa. The species’ Holotype and Paratypes were then deposited in the Western Australian Museum. Parallel to this, a stakeholder consultation process investigated a range of options for species names and common names. The new species is now called Octopus djinda, and the new common name is Western Rock Octopus. The name “djinda” is a Noongar word for star, and the Noongar are traditional custodians of the land in South-Western Australia. The description provided by this project will enable proper reporting of catch statistics for Australia’s largest and fastest growing octopus fishery.
Final Report • 1.68 MB
2018-178-DLD.pdf

Summary

This report summarises the scientific and consultation work undertaken to identify a new species name (Octopus djinda) and new common name (Western Rock Octopus) for the species that supports Australia’s largest octopus fishery, with 734 tonnes harvested in 2022. The species had been previously referred to as Octopus cf. tetricus, or Octopus aff. tetricus, otherwise known as the Gloomy Octopus. The species is endemic to Western Australia, and the work was a collaboration between the Western Australian Fisheries and Marine Research Laboratories (Dr Anthony Hart) and Dr Michael Amor of the Royal Botanic Gardens Victoria and the Western Australian Museum. Type specimens including males and females were sampled from across the species distribution in Western Australia, including from Geraldton, Mandurah, and Esperance. Using the latest technology in evolutionary genetics and multivariate morphology, the specimens were analysed, and a scientific manuscript proving they were a unique species was submitted to the journal Zootaxa. The species’ Holotype and Paratypes were then deposited in the Western Australian Museum. Parallel to this, a stakeholder consultation process investigated a range of options for species names and common names. The new species is now called Octopus djinda, and the new common name is Western Rock Octopus. The name “djinda” is a Noongar word for star, and the Noongar are traditional custodians of the land in South-Western Australia. The description provided by this project will enable proper reporting of catch statistics for Australia’s largest and fastest growing octopus fishery.
Final Report • 1.68 MB
2018-178-DLD.pdf

Summary

This report summarises the scientific and consultation work undertaken to identify a new species name (Octopus djinda) and new common name (Western Rock Octopus) for the species that supports Australia’s largest octopus fishery, with 734 tonnes harvested in 2022. The species had been previously referred to as Octopus cf. tetricus, or Octopus aff. tetricus, otherwise known as the Gloomy Octopus. The species is endemic to Western Australia, and the work was a collaboration between the Western Australian Fisheries and Marine Research Laboratories (Dr Anthony Hart) and Dr Michael Amor of the Royal Botanic Gardens Victoria and the Western Australian Museum. Type specimens including males and females were sampled from across the species distribution in Western Australia, including from Geraldton, Mandurah, and Esperance. Using the latest technology in evolutionary genetics and multivariate morphology, the specimens were analysed, and a scientific manuscript proving they were a unique species was submitted to the journal Zootaxa. The species’ Holotype and Paratypes were then deposited in the Western Australian Museum. Parallel to this, a stakeholder consultation process investigated a range of options for species names and common names. The new species is now called Octopus djinda, and the new common name is Western Rock Octopus. The name “djinda” is a Noongar word for star, and the Noongar are traditional custodians of the land in South-Western Australia. The description provided by this project will enable proper reporting of catch statistics for Australia’s largest and fastest growing octopus fishery.
Final Report • 1.68 MB
2018-178-DLD.pdf

Summary

This report summarises the scientific and consultation work undertaken to identify a new species name (Octopus djinda) and new common name (Western Rock Octopus) for the species that supports Australia’s largest octopus fishery, with 734 tonnes harvested in 2022. The species had been previously referred to as Octopus cf. tetricus, or Octopus aff. tetricus, otherwise known as the Gloomy Octopus. The species is endemic to Western Australia, and the work was a collaboration between the Western Australian Fisheries and Marine Research Laboratories (Dr Anthony Hart) and Dr Michael Amor of the Royal Botanic Gardens Victoria and the Western Australian Museum. Type specimens including males and females were sampled from across the species distribution in Western Australia, including from Geraldton, Mandurah, and Esperance. Using the latest technology in evolutionary genetics and multivariate morphology, the specimens were analysed, and a scientific manuscript proving they were a unique species was submitted to the journal Zootaxa. The species’ Holotype and Paratypes were then deposited in the Western Australian Museum. Parallel to this, a stakeholder consultation process investigated a range of options for species names and common names. The new species is now called Octopus djinda, and the new common name is Western Rock Octopus. The name “djinda” is a Noongar word for star, and the Noongar are traditional custodians of the land in South-Western Australia. The description provided by this project will enable proper reporting of catch statistics for Australia’s largest and fastest growing octopus fishery.
Industry
PROJECT NUMBER • 2017-020
PROJECT STATUS:
COMPLETED

Identification of muscle parasite in Yellowtail Kingfish (Seriola lalandi) and Mahi Mahi (Coryphaena hippurus), and determination as to the efficacy of non-invasive screening technology for the purpose of identifying infected fish in a commercial fish processing environment

Yellowtail kingfish (Seriola lalandi) and Mahi mahi (Coryphaena hippurus) are actively targeted by fishers in the warmer waters of northern NSW. Both species are becoming increasingly important to local fishers with escalating demand due to increased consumer awareness of the premium eating quality...
ORGANISATION:
Department of Primary Industries (QLD)
TAGS
Supply & Demand
Rac Nsw
Innovation
Disease
Consumer
SPECIES
Yellowtail Kingfish
Mahi Mahis

Research to support the development of a Tasmanian Sardine Fishery

Project number: 2023-005
Project Status:
Current
Budget expenditure: $447,000.00
Principal Investigator: Timothy M. Ward
Organisation: University of Tasmania (UTAS)
Project start/end date: 14 Jun 2023 - 27 Feb 2025
Contact:
FRDC
TAGS
Rac Tas
Fisheries Management
Biomass
SPECIES
Sardines

Need

This project is needed to facilitate the development of a Tasmanian Sardine Fishery. To date, information available on the South-eastern Sardine stock has been cobbled together from surveys targeting other species (i.e., Jack Mackerel) that did not cover the entire spawning area of Sardine. This project will address this knowledge gap by providing robust information about the size, distribution and potential productivity of the South-eastern Sardine stock that is needed by NRE Tas to develop management arrangements for the new fishery. The FRDC-funded component of this project (Attachment 1, Figure 1) is designed to complement and utilize data from a concurrent AFMA-funded survey of Jack Mackerel that covers the eastern component of the South-eastern Sardine stock (Attachment 2). This proposal was developed at the request of NRE Tas and has been endorsed by SPF RAG (Attachment 1). The methods that will be used in the project are consistent with those that have been used to underpin the development and management of the SASF (Ward et al. 2021a; Grammer and Ivey 2022; Grammer et al. 2021) and SPF (e.g. Grammer et al 2022a, b; Ward et al. 2020, 2021c).

Objectives

1. To investigate the size, distribution and potential productivity of the South-eastern stock of Australian Sardine.
2. To provide advice to the Department of Natural Resources & Environment Tasmania (NRE Tas) to inform the establishment of management arrangements for the new Tasmanian Sardine Fishery.

Final report

Authors: Tim Ward Katerina Charitonidou Tom Alderson Alex Shute Gretchen Grammer and Gary Carlos
Final Report • 2024-10-27 • 2.16 MB
2023-005-DLD.pdf

Summary

This study documents the first comprehensive evaluation of the spawning biomass of the South Eastern Stock of Australian Sardine (Sardinops sagax). This stock occupies continental shelf waters from the Victorian-South Australian border, east through Bass Strait and along the north-western and north-eastern coasts of Tasmania and north to around Jervis Bay off southern New South Wales. The study applied the Daily Egg Production Method (DEPM, see Parker 1980) using the modified approach established for the adjacent Southern Sardine Stock by Ward et al. (2021). This study combined i) information from a targeted ichthyoplankton survey of the western component of this stock undertaken in December 2023 as part of FRDC Project 2023-005 with ii) data obtained opportunistically from the eastern component of the stock from a Jack Mackerel (Trachurus declivis) survey conducted in January 2024 and funded by the Australian Fisheries Management Authority (AFMA). The combined survey covered a total area of almost 150,000 km2. More than 8,500 live Sardine eggs were collected. Sardine eggs were widespread and abundant in Bass Strait and off the coast of western Victoria. The total spawning area was almost 90,000 km2. Adult parameters used to calculate spawning biomass were obtained from the adjacent Southern Sardine Stock. This approach is robust because these parameters are consistent for Sardinops sagax and other species and genera of sardine worldwide. The spawning biomass of the South Eastern Sardine Stock was estimated to be more than 200,000 tonnes. This study demonstrates that this stock has the potential to support a large fishery. We provide recommendations to inform the development of an ecologically sustainable Tasmanian Sardine Fishery.   
Final Report • 2024-10-27 • 2.16 MB
2023-005-DLD.pdf

Summary

This study documents the first comprehensive evaluation of the spawning biomass of the South Eastern Stock of Australian Sardine (Sardinops sagax). This stock occupies continental shelf waters from the Victorian-South Australian border, east through Bass Strait and along the north-western and north-eastern coasts of Tasmania and north to around Jervis Bay off southern New South Wales. The study applied the Daily Egg Production Method (DEPM, see Parker 1980) using the modified approach established for the adjacent Southern Sardine Stock by Ward et al. (2021). This study combined i) information from a targeted ichthyoplankton survey of the western component of this stock undertaken in December 2023 as part of FRDC Project 2023-005 with ii) data obtained opportunistically from the eastern component of the stock from a Jack Mackerel (Trachurus declivis) survey conducted in January 2024 and funded by the Australian Fisheries Management Authority (AFMA). The combined survey covered a total area of almost 150,000 km2. More than 8,500 live Sardine eggs were collected. Sardine eggs were widespread and abundant in Bass Strait and off the coast of western Victoria. The total spawning area was almost 90,000 km2. Adult parameters used to calculate spawning biomass were obtained from the adjacent Southern Sardine Stock. This approach is robust because these parameters are consistent for Sardinops sagax and other species and genera of sardine worldwide. The spawning biomass of the South Eastern Sardine Stock was estimated to be more than 200,000 tonnes. This study demonstrates that this stock has the potential to support a large fishery. We provide recommendations to inform the development of an ecologically sustainable Tasmanian Sardine Fishery.   
Final Report • 2024-10-27 • 2.16 MB
2023-005-DLD.pdf

Summary

This study documents the first comprehensive evaluation of the spawning biomass of the South Eastern Stock of Australian Sardine (Sardinops sagax). This stock occupies continental shelf waters from the Victorian-South Australian border, east through Bass Strait and along the north-western and north-eastern coasts of Tasmania and north to around Jervis Bay off southern New South Wales. The study applied the Daily Egg Production Method (DEPM, see Parker 1980) using the modified approach established for the adjacent Southern Sardine Stock by Ward et al. (2021). This study combined i) information from a targeted ichthyoplankton survey of the western component of this stock undertaken in December 2023 as part of FRDC Project 2023-005 with ii) data obtained opportunistically from the eastern component of the stock from a Jack Mackerel (Trachurus declivis) survey conducted in January 2024 and funded by the Australian Fisheries Management Authority (AFMA). The combined survey covered a total area of almost 150,000 km2. More than 8,500 live Sardine eggs were collected. Sardine eggs were widespread and abundant in Bass Strait and off the coast of western Victoria. The total spawning area was almost 90,000 km2. Adult parameters used to calculate spawning biomass were obtained from the adjacent Southern Sardine Stock. This approach is robust because these parameters are consistent for Sardinops sagax and other species and genera of sardine worldwide. The spawning biomass of the South Eastern Sardine Stock was estimated to be more than 200,000 tonnes. This study demonstrates that this stock has the potential to support a large fishery. We provide recommendations to inform the development of an ecologically sustainable Tasmanian Sardine Fishery.   
Final Report • 2024-10-27 • 2.16 MB
2023-005-DLD.pdf

Summary

This study documents the first comprehensive evaluation of the spawning biomass of the South Eastern Stock of Australian Sardine (Sardinops sagax). This stock occupies continental shelf waters from the Victorian-South Australian border, east through Bass Strait and along the north-western and north-eastern coasts of Tasmania and north to around Jervis Bay off southern New South Wales. The study applied the Daily Egg Production Method (DEPM, see Parker 1980) using the modified approach established for the adjacent Southern Sardine Stock by Ward et al. (2021). This study combined i) information from a targeted ichthyoplankton survey of the western component of this stock undertaken in December 2023 as part of FRDC Project 2023-005 with ii) data obtained opportunistically from the eastern component of the stock from a Jack Mackerel (Trachurus declivis) survey conducted in January 2024 and funded by the Australian Fisheries Management Authority (AFMA). The combined survey covered a total area of almost 150,000 km2. More than 8,500 live Sardine eggs were collected. Sardine eggs were widespread and abundant in Bass Strait and off the coast of western Victoria. The total spawning area was almost 90,000 km2. Adult parameters used to calculate spawning biomass were obtained from the adjacent Southern Sardine Stock. This approach is robust because these parameters are consistent for Sardinops sagax and other species and genera of sardine worldwide. The spawning biomass of the South Eastern Sardine Stock was estimated to be more than 200,000 tonnes. This study demonstrates that this stock has the potential to support a large fishery. We provide recommendations to inform the development of an ecologically sustainable Tasmanian Sardine Fishery.   
Final Report • 2024-10-27 • 2.16 MB
2023-005-DLD.pdf

Summary

This study documents the first comprehensive evaluation of the spawning biomass of the South Eastern Stock of Australian Sardine (Sardinops sagax). This stock occupies continental shelf waters from the Victorian-South Australian border, east through Bass Strait and along the north-western and north-eastern coasts of Tasmania and north to around Jervis Bay off southern New South Wales. The study applied the Daily Egg Production Method (DEPM, see Parker 1980) using the modified approach established for the adjacent Southern Sardine Stock by Ward et al. (2021). This study combined i) information from a targeted ichthyoplankton survey of the western component of this stock undertaken in December 2023 as part of FRDC Project 2023-005 with ii) data obtained opportunistically from the eastern component of the stock from a Jack Mackerel (Trachurus declivis) survey conducted in January 2024 and funded by the Australian Fisheries Management Authority (AFMA). The combined survey covered a total area of almost 150,000 km2. More than 8,500 live Sardine eggs were collected. Sardine eggs were widespread and abundant in Bass Strait and off the coast of western Victoria. The total spawning area was almost 90,000 km2. Adult parameters used to calculate spawning biomass were obtained from the adjacent Southern Sardine Stock. This approach is robust because these parameters are consistent for Sardinops sagax and other species and genera of sardine worldwide. The spawning biomass of the South Eastern Sardine Stock was estimated to be more than 200,000 tonnes. This study demonstrates that this stock has the potential to support a large fishery. We provide recommendations to inform the development of an ecologically sustainable Tasmanian Sardine Fishery.   
Final Report • 2024-10-27 • 2.16 MB
2023-005-DLD.pdf

Summary

This study documents the first comprehensive evaluation of the spawning biomass of the South Eastern Stock of Australian Sardine (Sardinops sagax). This stock occupies continental shelf waters from the Victorian-South Australian border, east through Bass Strait and along the north-western and north-eastern coasts of Tasmania and north to around Jervis Bay off southern New South Wales. The study applied the Daily Egg Production Method (DEPM, see Parker 1980) using the modified approach established for the adjacent Southern Sardine Stock by Ward et al. (2021). This study combined i) information from a targeted ichthyoplankton survey of the western component of this stock undertaken in December 2023 as part of FRDC Project 2023-005 with ii) data obtained opportunistically from the eastern component of the stock from a Jack Mackerel (Trachurus declivis) survey conducted in January 2024 and funded by the Australian Fisheries Management Authority (AFMA). The combined survey covered a total area of almost 150,000 km2. More than 8,500 live Sardine eggs were collected. Sardine eggs were widespread and abundant in Bass Strait and off the coast of western Victoria. The total spawning area was almost 90,000 km2. Adult parameters used to calculate spawning biomass were obtained from the adjacent Southern Sardine Stock. This approach is robust because these parameters are consistent for Sardinops sagax and other species and genera of sardine worldwide. The spawning biomass of the South Eastern Sardine Stock was estimated to be more than 200,000 tonnes. This study demonstrates that this stock has the potential to support a large fishery. We provide recommendations to inform the development of an ecologically sustainable Tasmanian Sardine Fishery.   
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