17 results

Bursary to attend the 2022 Microplastics and Seafood: Human Health Symposium in the United Kingdom - Nina Wootton

Project number: 2022-055
Project Status:
Completed
Budget expenditure: $9,400.00
Principal Investigator: Nina Wootton
Organisation: University of Adelaide
Project start/end date: 30 Aug 2022 - 30 Jan 2023
Contact:
FRDC
TAGS
Symposium
Marine Plastics
Capacity Building

Need

[Produce a ‘Critical Review Paper’ to provide a potential roadmap for additional research, as well as help identify communication strategies for the seafood industry. This is a development and networking opportunity to create future relationships and collaborations]

This bursary will allow Nina Wootton to attend the microplastics and seafood symposium in Edinburgh, Scotland. The focus of the symposium will be human health aspects of microplastics in seafood. The aim is to produce a critical review paper to provide a potential roadmap for additional research, as well as help identify communication strategies for the seafood industry. This is part of an international partnership between FRDC, Seafish (UK) and Seafood Industry Research Fund (USA) that will have 11 scientific experts attending along with industry. The symposium provides Australians with a unique opportunity to engage with experts and industry from around the world.

We will also visit several UK based research groups as part of our travel - we have already engaged with researchers from Plymouth Marine Laboratories, University of Plymouth and Exeter University including Professor Richard Thompson, the first researcher to identify microplastics as an issue.

Objectives

1. Attend the 'Microplastics and Seafood
Human Health Symposium' in the United Kingdom
2. To produce a ‘Critical Review Paper’ addressing microplastics in seafood and impact on human health to provide a potential roadmap for additional research and identify communication strategies for the seafood industry

Bursary to attend the 2022 Microplastics and Seafood: Human Health Symposium in the United Kingdom - Bronwyn Gillanders

Project number: 2022-054
Project Status:
Completed
Budget expenditure: $8,885.00
Principal Investigator: Bronwyn M. Gillanders
Organisation: University of Adelaide
Project start/end date: 30 Aug 2022 - 29 Nov 2022
Contact:
FRDC
TAGS
Symposium
Marine Plastics
Capacity Building

Need

[Produce a ‘Critical Review Paper’ to provide a potential roadmap for additional research, as well as help identify communication strategies for the seafood industry. This is a development and networking opportunity to create future relationships and collaborations]

This bursary will allow Professor Gillanders to attend the microplastics and seafood symposium in Edinburgh, Scotland. The focus of the symposium will be human health aspects of microplastics in seafood. The aim is to produce a critical review paper to provide a potential roadmap for additional research, as well as help identify communication strategies for the seafood industry. This is part of an international partnership between FRDC, Seafish (UK) and Seafood Industry Research Fund (USA) that will have 11 scientific experts attending along with industry. The symposium provides Australians with a unique opportunity to engage with experts and industry from around the world.

We will also visit several UK based research groups as part of our travel - we have already engaged with researchers from Plymouth Marine Laboratories, University of Plymouth and Exeter University including Professor Richard Thompson, the first researcher to identify microplastics as an issue.

Objectives

1. Attend the 'Microplastics and Seafood
Human Health Symposium' in the United Kingdom
2. To produce a ‘Critical Review Paper’ addressing microplastics in seafood and impact on human health to provide a potential roadmap for additional research and identify communication strategies for the seafood industry

Profiling and tracking change in Australia's seafood workforce: establishing a baseline workforce dataset

Project number: 2022-034
Project Status:
Current
Budget expenditure: $259,342.00
Principal Investigator: Stephane M. Mahuteau
Organisation: University of Adelaide
Project start/end date: 30 Sep 2022 - 4 Sep 2025
Contact:
FRDC
TAGS
Workforce
Social Science
Social Science
Human Dimensions Research
Data

Need

The project developed to address the call for EOI recognises that the seafood workforce is diverse and operates within a changing natural, technological, and socioeconomic environment, providing unique challenges and opportunities. The seafood workforce also, however, operates within the wider Australian economy where rural and regional employment, small-medium business operations, and increasing value-adding opportunities are common topics of interest. The project proposes to provide a comprehensive assessment of the current data framework, make recommendations for improving it, and develop a baseline workforce dataset. The focus will be on the potential to use existing sources of data (particularly administrative data collected by government institutions and data that is required to be collected) and how and when those need to be effectively complemented with additional data. Administrative data are confidential and access limited as is the variety of seafood industry data often collected. Accessing administrative data is explicitly part of this proposal and identifying the sources of, and the type of data available, from industry surveys.

Objectives

1. To establish a baseline workforce dataset to address the lack of accessible, accurate workforce data
2. To identify how to overcome the shortcomings of official classifications to better align data information with how the seafood industry and its workforce operate.
3. To determine how using whole of population statistical data may provide a more accurate picture of the seafood industry workforce
4. To use available literature and expert input to provide an understanding of the true diversity of employment in the seafood sector.
5. To undertake a comprehensive stock-take of the relevant current data sources recording information on the seafood industry workforce.
6. To undertake a comprehensive analysis of the existing data sources and investigate the usefulness of large administrative data such as BLADE/MADIP.
7. To closely involve seafood industry participants through an effective stakeholder engagement strategy and promote a co-design element to the project
8. To provide recommendations to address data gaps and improve the utility of current data, and support the FRDC in meeting the objectives of its Capability and Capacity Building Strategy.

Developing a cost-efficient stock assessment program for Southern Calamari fisheries

Project number: 2021-118
Project Status:
Current
Budget expenditure: $496,827.00
Principal Investigator: Craig J. Noell
Organisation: University of Adelaide
Project start/end date: 24 Mar 2024 - 27 Feb 2027
Contact:
FRDC
TAGS
Stock Assessment
Rac Sa
Modelling
Ageing
SPECIES
Southern Calamari

Need

Southern Calamari are important to multiple commercial and community fishery sectors in SA. Southern Calamari are now managed using a TACC for the commercial MSF and have specified resource allocations for recreational, Aboriginal/Traditional, Charter Boat, GSV prawn and SG prawn fisheries. However, the current assessment program does not capture the importance of this species and cannot support the level of management required. The primary outcome of this project will be to develop an assessment program for Southern Calamari in SA that can be used to assign stock status and provide TACC setting advice to fisheries management.

Like many cephalopod assessments, the current SA Southern Calamari assessment is basic as scientific advances have not occurred at the same rate as advances for finfish or crustacean assessment methods. Therefore, the successful development of an assessment program for Southern Calamari in SA would provide a valuable scientific contribution to several other Australian squid fisheries as they often encounter similar assessment difficulties

Overcoming key knowledge gaps and incorporating information on environmental drivers will be a key focus of this project, in order to develop an assessment that accounts for the full complexity of cephalopod population dynamics. However, there are limited resources to undertake an assessment in SA as the commercial MSF has a low gross value product (GVP) but has high assessment needs across several species. Therefore, a cost-effective assessment program must be developed to allow for its regular application, which is necessary for short lived species such as Southern Calamari.

The proposed project will address two FRDC strategic plan outcomes (Growth for enduring prosperity, and best practices and production systems) by developing a best practice assessment program that can be applied for Southern Calamari in SA and be extended for use in other fishery jurisdictions. An assessment program that provides confident management advice, such as TACC setting, will maximise resource use across all sectors by establishing a robust stock assessment that increases certainty in stock abundance and allows sustainable fishing strategies to be developed.

Objectives

1. Review global cephalopod assessments to identify potential assessment methods for Southern Calamari and how environmental variables could be incorporated.
2. Evaluate the suitability of available fishery-dependent and fishery-independent data from the SG and GSV prawn fisheries to develop recruitment indices.
3. Develop Southern Calamari growth models for SG and GSV and evaluate the influence of environment on seasonal growth rates.
4. Outline the most suitable and cost-effective assessment program option for Southern Calamari in SG and GSV

A global review on implications of plastic in seafood

Project number: 2021-117
Project Status:
Completed
Budget expenditure: $60,513.00
Principal Investigator: Bronwyn M. Gillanders
Organisation: University of Adelaide
Project start/end date: 31 May 2022 - 30 Jul 2023
Contact:
FRDC
TAGS
Pollution
Marine Plastics
Consumer Health
Animal Health

Need

The project will review and synthesise available global data on the potential effects and implications that plastic is causing in seafood species in the context of the impacts they generate to fishing and aquaculture sectors. Concurrently, using published literature on sources of marine pollution, the abundance of plastic entering aquatic systems from seafood related sources will be quantified, with particular focus to the Australian context. Ultimately, this will give the fisheries sector, particularly in an Australian setting, the knowledge to evaluate where appropriate mitigation strategies are necessary and reduce the presence and impacts of microplastics in seafood.

This project aligns with FRDC R&D Plan Outcome 1: Growth and Enduring prosperity; In particular, it targets the priorities of:
- Improving the understanding of the cause and extent of impacts to aquatic systems and what is needed to improve them
- Promote a circular economy to remove waste from the processing system, keep products and materials in use and promote the repair of natural systems

Providing information on how marine pollution may affect the seafood industry and seafood species fished will guide the urgency of future research and allow management and mitigation strategies that support the seafood sector to be developed. Ultimately, quantifying the amount of plastic contributed by the seafood sector to marine plastics will allow us to advance with solutions and uncover where plastic alternatives are most needed.

Objectives

1. Undertake a systematic review, collating, synthesising and analysing global data on the effects and implications of plastic pollution in seafood species and the seafood industry
2. Identify potential sources of plastic in marine environments, including the percentage coming through fishing and aquaculture
3. Highlight key knowledge gaps, opportunities and threats of plastic in the seafood sector
4. Disseminate findings and information on effects and implications of plastic pollution on seafood species to fishers and managers

Final report

Authors: Nina Wootton Patrick Reis-Santos and Bronwyn M Gillanders
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.
Final Report • 2023-09-27 • 3.65 MB
2021-117-DLD.pdf

Summary

Microplastics are commonly consumed by seafood species however, there is still limited understanding of the effects and implications that microplastics may have on the fishing and aquaculture industry. This project summarises research on the effects that microplastic may be having on seafood species and the contribution that the seafood industry is having to marine plastic pollution. Global literature on microplastic effects in seafood species revealed 1) that 93% of all species were negatively affected by plastics, although many studies used increased levels of microplastic contamination that are not environmentally relevant (i.e., generally do not reflect environmental conditions); and 2) 23% of plastic pollution in the marine and coastal environment originates from fishing and aquaculture sources. This
report provides clear-sighted recommendations on the threats and opportunities that plastics hold for the seafood sector, as well as avenues for potential mitigation and reduction.

Minor use permit to sedate finfish using APVMA registered products containing isoeugenol

Project number: 2021-071
Project Status:
Current
Budget expenditure: $68,513.00
Principal Investigator: Marty R. Deveney
Organisation: University of Adelaide
Project start/end date: 31 Mar 2023 - 30 Nov 2023
Contact:
FRDC
TAGS
Husbandry
Disease
Animal Health
SPECIES
Yellowtail Kingfish
Barramundi
Murray Cods

Need

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

Objectives

Commercial in confidence

Accelerating Greenlip Abalone stock recovery in South Australia using release of hatchery-reared juveniles: Phase 1 - genetics risk assessment and preliminary cost-benefit analysis

Project number: 2020-116
Project Status:
Completed
Budget expenditure: $111,500.00
Principal Investigator: Stephen Mayfield
Organisation: University of Adelaide
Project start/end date: 31 May 2021 - 29 Nov 2021
Contact:
FRDC
TAGS
Rac Sa
SPECIES
Greenlip Abalone

Need

There are areas of the Western Zone Abalone Fishery where Greenlip Abalone are depleting, with biomass levels well below carrying capacity and historical levels. Some areas may not recover quickly without intervention and recovery may be further impeded by climate change. Thus, the Western Zone wild-catch abalone industry is seeking to establish a commercial-scale stock release program to accelerate Greenlip Abalone stock recovery in South Australia using release of hatchery-reared juveniles. The Central Zone wild-catch abalone industry is seeking to establish a commercial-scale stock release program to re-build Greenlip Abalone stocks in depleted areas that will use hatchery-reared juveniles.
There are two key needs for commencing a stock recovery program using hatchery-reared juveniles. The key industry need is to test release of juvenile Greenlip Abalone in the Western and Central Zones to evaluate the long-term economic viability. To support this important industry goal, the key Government need is for data to underpin release policy. This includes knowledge of the geographic distribution of Greenlip Abalone genetic differentiation (after Miller et al. 2014, Sandoval-Castillo et al. 2017), to inform policy review.

References:
Miller et al. 2014 – Molecular genetics to inform spatial management in benthic invertebrate fisheries: a case study using the Australian Greenlip Abalone.
Sandoval-Castillo et al. 2017 – Seascape genomics reveals adaptive divergence in a connected and commercially important mollusc, the greenlip abalone (Haliotis laevigata), along a longitudinal environmental gradient.

Objectives

1. Use single nucleotide polymorphism (SNPs
after Sandoval-Castillo et al. 2017) to compare the genetic diversity and population structure of wild Greenlip Abalone and FX abalone
2. Assess the genetic suitability of using FX abalone for release into wild populations at sites across the SA Western Zone Fishery, ensuring that the genetic structure and diversity of wild populations is maintained, including an expert-based, genetics risk assessment workshop
3. Undertake a preliminary cost-benefit analysis to inform 'stop/go’ decision

Model

Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx

Project products

Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.
Model • 2024-02-01 • 49.40 KB
2020-116-CBA.xlsx
Model • 2024-02-01 • 36.32 KB
2020-116-RiskMatrix.xlsx
Final Report • 2024-02-28 • 2.69 MB
2020-116-DLD.pdf

Summary

This project was undertaken to facilitate abalone stock recovery in South Australia. Three key activities were undertaken. These were (1) a comparison of genetic differences between wild and hatchery-reared Greenlip Abalone; (2) development of a genetic risk-assessment framework as a method for assessing genetic risks associated with release of abalone; and (3) a preliminary cost-benefit analysis of release of juvenile Greenlip Abalone with a user interface to aid use by industry members.

Monitoring and mitigating interactions between small pelagic fisheries and dolphins: literature review and analysis of fishery data

Project number: 2020-049
Project Status:
Completed
Budget expenditure: $60,000.00
Principal Investigator: Roger J. Kirkwood
Organisation: University of Adelaide
Project start/end date: 30 Jun 2020 - 16 Dec 2020
Contact:
FRDC
TAGS
Threatened Endangered Protected Species
Remote Sensing
Rac Sa
Policy
Fishing Gear
SPECIES
Pilchards

Need

To meet community expectations, address legislative obligations and fulfil specifications of the Wildlife CoP, the SASF needs to take all reasonable steps to prevent interactions with dolphins.

A comprehensive review of methods used to mitigate interactions with dolphins in purse-seine fisheries worldwide needs to be conducted to ensure that future strategies developed for the SASF are consistent with world's best practice. The review is critical because demonstrating that strategies for mitigating interactions with dolpins are consistent with world's best practice is a specific requirement of the Commonwealth Environment Protection
and Biodiversity Conservation Act 1999.

A structured data collection program needs to be established to obtain robust scientific information from industry trials of acoustic deterrants coducted in 2020. This analysis is needed to identify devices that may work and could tests in experimental trails.

Objectives

1. Undertake a comprehensive literature review of methods used to monitor and mitigate interactions between small pelagic fisheries and dolphins
2. Analyse data from industry trials to identify acoustic devices and deployment strategies that mitigate interactions with dolphins

Final report

ISBN: 978-1-876007-44-7
Authors: Tim M. Ward India Attwood-Henderson and Roger Kirkwood
Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

Final Report • 616.96 KB
2020-049-DLD.pdf

Summary

This review compares approaches taken to monitor and mitigate common dolphin (Delphinus delphis) interactions with the South Australian Sardine Fishery (SASF) with those taken for protected species interactions with other fisheries for small pelagic species, including Australia’s Commonwealth Small Pelagic Fishery (SPF). The review informs ongoing refinement of approaches in the SASF to reduce encirclement and mortality rates of Common Dolphins and supports the SASF’s commitment to a “continuous process of review and improvement”. Ongoing refinement is a key element of the fishery’s Code of Practice (CoP) for mitigating interactions with wildlife (SASIA 2021).

 

This study was also needed to ensure that approaches taken in the SASF are “reviewed with consideration to international standards for mitigating interactions with marine mammals” (Commonwealth of Australia 2016), which is a requirement of the accreditation of the management regime for the SASF under Part 13 of the Commonwealth Environment Protection and Biodiversity Conservation Act 1999. 

The impact and implication of Perkinsus olseni on Australian abalone fisheries

Project number: 2020-004
Project Status:
Current
Budget expenditure: $322,174.00
Principal Investigator: Ben Stobart
Organisation: University of Adelaide
Project start/end date: 31 Dec 2020 - 30 Dec 2023
Contact:
FRDC
TAGS
Health And Safety
Fisheries Management
Economic
Animal Health
SPECIES
Blacklip Abalone
Roe's Abalone
Greenlip Abalone

Need

Perkinus olseni is a protozoan parasite that has negative effects on three commercially harvested abalone species in Australia – blacklip, greenlip and Roe’s. Disease manifestation ranges from high mortality (e.g. New South Wales; Liggins and Upston 2010) to chronic clinical infection (Gudkovs 2016). Chronically infected animals often exhibit extensive macroscopic lesions rendering the product unsaleable. Outbreaks in the 1980s in the South Australian (SA) Central Zone (SACZ) fishery removed 15 t of greenlip catch, with partial recovery of the fishery taking 30+ years. Avoidance of fishing areas in the SA Western Zone (SA WZ) abalone fishery with high prevalence of Perkinsus-related lesions has displaced ~10% (11t.yr-1) of blacklip catch to alternative fishing grounds, exacerbated quota reductions and likely cost the fishery in excess of $10 million over the past ten years.
The impact of Perkinsus on abalone fisheries has not been fully quantified and the factors driving prevalence and disease expression are unknown. This information is fundamental for the effective management of this disease, and in particular the prevention of its spread and proliferation.
Understanding the impacts of Perkinsus on abalone fisheries and developing strategies for mitigating impacts are the highest priority research need of the SAWZ. These aims are also relevant to the Abalone Council Australia strategic plan and supported by the SACZ and SA Southern Zone abalone fisheries because of the threat this disease poses to both fisheries.
This project will consolidate current knowledge on Perkinsus, describe the impact and drivers of the disease in Australia, and determine whether shucking at sea is a high risk. This information is necessary to mitigate the spread and impact of the disease where abalone are currently shucked at sea. If shucking at sea is a high risk we will evaluate alternative ways in which harvesting can occur without further disease spread.

Objectives

1. Assessment of the economic impact of Perkinsus olseni on blacklip and greenlip abalone fisheries
2. Identify environmental factors influencing the expression of clinical perkinsosis
3. Preliminary evaluation of the fate of viscera discarded at sea
4. Evaluate whether Perkinsus zoosporangia can be detected in faecal pellets following ingestion by fish or other viscera consumers (laboratory trials)
5. If objective 4 indicates zoosporangia detection in fish faeces, hold a workshop to evaluate ways in which harvesting can occur without further disease spread.

Quantifying the exposure, protection and recovery of seafloor habitats in Spencer Gulf to prawn trawling

Project number: 2020-002
Project Status:
Current
Budget expenditure: $314,535.00
Principal Investigator: Gretchen L. Grammer
Organisation: University of Adelaide
Project start/end date: 10 Jan 2021 - 15 Dec 2022
Contact:
FRDC
TAGS
Sustainability
Stock Assessment
Rac Sa
Post Harvest
Habitat
SPECIES
King Prawns

Need

An independent review (FishListic Pty Ltd. 2019) identified knowledge gaps that need to be addressed for the SGPF to have a successful re-assessment of their MSC certification. The review found that detailed information was needed on the percentage of key seafloor habitat types within and outside the trawl footprint.

The review highlighted the need to visually monitor the SGPF’s associated habitats to address knowledge gaps of habitat extent, regeneration, detailed mapping, sensitivity and understanding of gear impacts. Specific knowledge gaps are: a) the presence/extent of sponge and rhodolith habitats currently in medium to high-intensity trawl areas; b) regeneration of sponge and rhodolith habitats previously subjected to high-intensity trawling; c) post-capture survivability of rhodolith pavement; and d) impact of gear on specific habitats.

The MSC Fisheries Standard for Habitats (PI 2.4) requires explicit assessment of the fishery’s impact on commonly encountered habitats, vulnerable marine ecosystems (VMEs) and minor habitats. While VMEs are not currently designated in Spencer Gulf, the common, sensitive and minor habitats associated with the SGPF need to be evaluated. Data are needed on the amount of exposure of these habitats to prawn trawling in Spencer Gulf, as well as on their protection and recovery, to determine their status.

In order for the SGPF to maintain its status as one of the world’s best managed prawn trawl fisheries and retain its social licence to operate, the requirements of MSC Principle 2: Habitat (2.4) need to be addressed. Seafloor habitat types found within the trawl grounds need to be visually monitored, described, quantified, and impacts from prawn trawling assessed.

New understanding of the spatial and temporal distribution of key habitats and impacts from fishing in the context of the entire Spencer Gulf is needed to protect fisheries resources and the environment that supports them, and for integrated ecosystem-based management to be implemented in the future.

Objectives

1. Estimate the proportion of key seafloor habitats (namely sponge gardens, rhodolith pavements and seagrass) and selected by-catch species that occur inside and outside the SGPF trawl footprint
2. Quantify the spatial distribution of cumulative trawl intensity and time-since-trawled across Spencer Gulf
3. Quantify the exposure and protection of seafloor habitats and by-catch species to trawling
4. Estimate the potential regeneration timeframes of key seafloor habitats and assess their current status.
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