574 results

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

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

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.

Pipi hatchery production techniques and optimal restocking strategies

Project number: 2021-115
Project Status:
Current
Budget expenditure: $454,253.00
Principal Investigator: Symon Dworjanyn
Organisation: Southern Cross University (SCU) National Marine Science Centre
Project start/end date: 30 Jun 2022 - 30 Jul 2025
Contact:
FRDC
SPECIES

Need

We propose a multi-stage project that will cumulate in a feasibility study that directly addresses the identified research priority, namely of understanding how spat seeding could enhance NSW’s pipi stocks. Our proposal will provide detailed information towards FRDC’s strategic outcome 1 (Growth for enduring prosperity) and strategic outcome 2 (Best practices and production systems). This project would benefit all states with existing and emerging pipi fisheries.

Developing cost-effective techniques that can enhance wild capture fisheries offers industry greater surety of catch and even fishery growth potential as inter-annual variation and longer-term catch trends can be managed. In turn, stock enhancement can lead to greater economic security to industry. Indeed, feedback from pipi fishers in NSW and VIC has emphasised how the current high variability in catch coming from a low catch base greatly impacts their capacity to supply customers and make positive longer-term business decisions. Fishery enhancement can also play a vital role in helping to manage the ecological impacts of wild harvest as stock depletion is less likely to occur. Our proposal explicitly includes an assessment of regulatory frameworks and biosecurity regulations to help facilitate the sustainable implementation of any proposed large-scale pipi seeding.

Objectives

1. Ground truth of current pipi larval production protocols, and produce 100 000s of competent to settle larvae
2. Develop nursery protocols and produce 10 000s of spat
3. Produce a preliminary beach seeding protocol that incorporates ecological understanding and appropriate efficacy auditing methods (tagging)
4. Assess the efficacy of pipi spat seeding on beaches and optimise protocol
5. Provide a review of fishery and biosecurity regulations relevant to future pipi stock enhancement activity
6. Develop a comprehensive hatchery and seeding protocol for industry

Water abstraction impacts on flow dependent fisheries species of the Northern Territory, Australia - a synthesis of current knowledge and future research needs

Project number: 2021-114
Project Status:
Completed
Budget expenditure: $101,740.68
Principal Investigator: Kaitlyn O'Mara
Organisation: Griffith University Nathan Campus
Project start/end date: 30 Jul 2022 - 30 Jul 2023
Contact:
FRDC

Need

The tropical waters of northern Australia contain unique and diverse aquatic species that are adapted to the seasonally variable climate. Many species rely on seasonal river flows to move, forage, reproduce and fulfil critical life history stages, particularly in ephemeral rivers which become disconnected in the dry season. River flows and harvest are known to influence both freshwater and marine fish and fisheries. However, river flows have been modified in several tropical catchments by water abstraction and development of water storage infrastructure for agriculture and drinking water. Additionally, there is increasing pressure to develop new water resource infrastructure in northern Australia. A large and disparate body of literature exists that has documented the relationships between tropical fish species and the seasonal variations in river flow. Production of several commercially, recreationally, and traditionally important tropical aquatic species is linked to flow, suggesting that these may be at risk from the multiple pressures of water abstraction and harvesting, warranting the need for a synthesis of current knowledge on water abstraction impacts and identification of knowledge gaps for targeted future research.

We will address this priority task through the delivery of a stakeholder targeted synthesis of current knowledge on the impacts of water abstraction on tropical aquatic species by a team of recognised experts who have worked extensively on the flow dependence of tropical aquatic species in northern Australia. Through this synthesis, we aim to increase stakeholder understanding of water abstraction impacts on aquatic species.

Objectives

1. Determine key directives for the synthesis during initial meeting in Darwin with the NT government research advisory committee
2. Review and synthesise relevant grey and published literature
3. Identify potential risks of surface water abstraction on priority fish species and identify critical knowledge gaps and future research needs
4. Share the outcomes with project stakeholders and provide research advice

Final report

Authors: Kaitlyn O’Mara Leah Beesley Keller Kopf Michele Burford Michael Douglas Ben Stewart-Koster Mark Kennard
Final Report • 2023-12-12 • 14.77 MB
2021-114-DLD.pdf

Summary

This project synthesised information that could be used to help guide decision making around the protection of fisheries species that may be impacted by water abstraction. This review was led by Griffith University and conducted in collaboration with the University of Western Australia, Charles Darwin University, and the Northern Territory Fisheries. The synthesis of existing information on the impacts of water abstraction found substantial evidence for impacts on some species and large gaps in the research literature for others. The reviewed studies showed that the severity of predicted impacts varies between river systems and between different modes of water abstraction, as well as with different timing, magnitude, and thresholds of water take. The collective results of these studies modelling potential impacts of water abstraction warrant a precautionary approach to setting water takes, with particular emphasis on ensuring the continuation of high flow years which disproportionately support fishery biomass. It is recommended that the flow dependencies of these species be carefully considered when implementing water policies and research be conducted to fill knowledge gaps for species where little is known about their dependency on the natural flow regime.

Developing biomass assessment approaches, harvest methodologies and biosecurity knowledge for wild-harvest of seaweeds in southern Australia

Project number: 2021-112
Project Status:
Current
Budget expenditure: $576,519.00
Principal Investigator: Jason E. Tanner
Organisation: University of Adelaide
Project start/end date: 30 Mar 2023 - 29 Jan 2026
Contact:
FRDC

Need

After many years of interest but little on ground activity apart from a few established operations based on the harvest of beach-cast material, the seaweed industry is starting to gain momentum in southern Australia. There is particular interest in the farming of Asparagopsis for its methane reducing properties in ruminants, but also in several species for human consumption and other uses, including the golden kelp Ecklonia radiata. While much of the focus is on the development of an aquaculture industry, this needs to be supported by the wild harvest of seedstock, at least in the early years, and there is also some interest in wild-harvest for product. However, the knowledge base and tools available for managers to regulate this emerging industry are limited. This proposal aims to start filling in some of these gaps. The first is to develop an understanding of the biomass present in targeted areas, and importantly, the development of a rapid assessment tool to do this, which can then be used to form the basis of a stock assessment methodology as the industry expands. The second is to develop harvest methodologies that allow for the recovery of local stocks, and which can be used to inform rotational harvest strategies by documenting how long recovery takes. The third is to develop an understanding of some of the biosecurity issues likely to be faced by industry and regulators, which will allow managers to make informed decisions around translocation policies to both prevent the spread of disease, and to maintain the genetic integrity of natural populations.

Objectives

1. Develop a rapid assessment tool for species specific subtidal macroalgal biomass, initially for Asparagopsis armata, A. taxiformis and E. radiata.
2. Develop harvesting methods for the above species that ensure that local populations are not depleted, and that ecosystem function is not compromised.
3. Review literature on macroalgae diseases, pests, health management strategies and population structure.
4. Identify information and approaches to define health management units.
5. Collate information and build an initial basic approach to translocation.

Applying the fisheries climate adaptation handbook to Australia's state fisheries

Project number: 2021-104
Project Status:
Current
Budget expenditure: $310,300.00
Principal Investigator: Beth Fulton
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 11 Jul 2022 - 11 Mar 2023
Contact:
FRDC

Need

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

Objectives

Commercial in confidence

Commercial use of ATP-ase for the prediction of smoltification on Atlantic Salmon stock in Tasmania

Project number: 2021-102
Project Status:
Completed
Budget expenditure: $197,414.00
Principal Investigator: Christine C. Huynh
Organisation: Petuna Group
Project start/end date: 31 Mar 2022 - 30 Aug 2022
Contact:
FRDC

Need

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

Objectives

Commercial in confidence
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