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PROJECT NUMBER • 2023-005
PROJECT STATUS:
CURRENT

Research to support the development of a Tasmanian Sardine Fishery

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...
ORGANISATION:
University of Tasmania (UTAS)
SPECIES

Developing a cost-effective and novel fisheries-independent monitoring program to inform scalefish fisheries management

Project number: 2023-002
Project Status:
Current
Budget expenditure: $440,725.00
Principal Investigator: Alyssa Marshell
Organisation: University of Tasmania (UTAS)
Project start/end date: 31 Dec 2023 - 9 Jan 2027
Contact:
FRDC

Need

Target species of Tasmanian scalefish fisheries (TSF) remain difficult to assess and manage due to the wide range of species (> 20 species) and variety of both commercial and recreational fisheries methods. TSF are currently assessed using commercial catch and effort data as well as age and length information. However, some key TSF species landings are increasingly greater in the recreational sector, with a comparatively low commercial catch. Therefore, due to the absence of regular and robust CPUE data, innovative fishery independent data collection programs are required to routinely monitor TSF species and provide adequate data for stock assessment models. This project will review and collate data from previous studies to design and test strategic and cost-effective novel fishery-independent survey methods that collect population dynamics data for a suite of key scalefish fisheries species, across both environmental and fishing intensity gradients in Tasmania. Outcomes will improve stock assessment methods by providing new and additional data for data-poor and undefined species, and, if proven cost-effective, establish an ongoing, long-term fishery-independent monitoring program to enhance the sustainability of TSF. We will collate historical data on Tasmanian scalefish abundance, biomass, distribution, and length-frequencies collected in previous research projects and collect and compare new data to fill current knowledge gaps about localised population depletion and population dynamics across different habitats. Many of the popular commercial and recreational scalefish fisheries are increasingly of concern, with southern sand flathead, southern garfish, and bastard and striped trumpeters all assessed as depleted in the most recent (2020/21) Tasmanian stock assessment (Fraser et al 2022), while others (such as flounder - Pleuronectidae family, longsnout boarfish, and barracouta) were assessed as undefined due to lack of available data for these species. Our results will better inform data-poor stock assessment approaches and will have implications for fisheries managers making critical management decisions for depleted, depleting, and undefined Tasmanian scalefish fisheries species.

Objectives

1. Determine the benefits and limitations of alternative stereo-video methods to collect image-based fish size estimates, including assessing the effectiveness of length-monitoring to inform assessments of depleted/depleting and undefined commercial scalefish species.
2. Investigate image processing software for the implementation of a fully automated system for post-processing of stereo-video surveys using artificial intelligence and machine learning.
3. Compare length-frequencies of key scalefish species from fishery-dependent and independent survey datasets and length-based stock assessment methods.
4. Investigate novel sampling methods to collect length data of key scalefish species.
5. Conduct a comprehensive cost-benefit analyses of traditional versus novel monitoring methods, including power to ensure the feasibility of implementing and incorporating novel methods into regular fisheries-independent monitoring and assessment outcomes.
6. Investigate the role of incorporating citizen science and include recreational fishers’ engagement in supporting cost-effective and novel fisheries-independent monitoring programs.

Development of a Stock Status Report Card for Rays and Sharks

Project number: 2020-105
Project Status:
Completed
Budget expenditure: $302,955.00
Principal Investigator: Colin Simpfendorfer
Organisation: University of Tasmania (UTAS)
Project start/end date: 31 Jul 2021 - 30 Apr 2023
Contact:
FRDC

Need

With growing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s 320 species are effectively managed and conserved, there is a need for decision makers in government, conservation advocates, scientists and the public to have access to comprehensive and accurate information. One of the greatest challenges for the sharks and rays is that more than any other taxa they exist across the spectrum of interests from sustainable fisheries resources to threatened species requiring conservation. Further complicating the assessment and management of these species is the fact that many species’ ranges extend beyond Australia’s territorial waters, where management is implemented differently and populations may have a very different status. Australia’s abilities both in management of sharks and rays, and the science that underpins it, are recognised as world-leading. Despite this, there remain challenges for our sharks and rays, but they may not always be those that are faced by other nations in our region. Available information is often fragmentary and difficult to access, and most assessment is focused on only a few species targeted by fisheries. The growing information needs of initiatives such as Shark-Plan 2, CITES, CMS, ESD/WTO and EPBC listing struggle to be met because of the lack of a synthesis of information across this group. Locally relevant information on the status of sharks and rays, and the synthesis of knowledge about them is thus critical to identifying and addressing the challenges that face this group in Australian waters, and for demonstrating the successes of Australia’s management of this group. With the publication of the Shark Report Card these deficiencies have been partly addressed. However, that project covered only a small portion of the ray species that occur in Australian waters. This project is a step in synthesizing this knowledge and developing a report card for Australia’s rays that is a companion to the Shark Report Card.

Objectives

1. Compile and synthesise information on the status, and interaction of fisheries, for all species of Australian rays
2. Produce accounts for each ray species that are compatible with the Shark Report Card and the Status of Australian Fish Stocks
3. Update the Shark Report Card for species that have had a material change in their status since the completion of the original version
4. Communicate the results of the Shark and Ray Report Card to relevant stakeholders

Final report

ISBN: 978-1-922708-44-1
Author: Colin Simpfendorfer
Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


Final Report • 2023-07-28 • 1.96 MB
2020-105-DLD.pdf

Summary

In response to increasing concerns for the status of shark and ray populations world-wide, and increasing pressure to ensure Australia’s shark and ray species are effectively managed and conserved, this project synthesised the scattered information, assessed individual species’ status and provided a clear and concise overview of the state of Australia’s shark and rays. Project staff from the Institute of Marine and Antarctic Studies at the University of Tasmania collected available data from peer-reviewed literature, government reports, observer programs and fellow scientists to produce comprehensive databases on species and management measures with input from CSIRO on the most recent taxonomy of this diverse group. The Status of Australian Fish Stocks (SAFS)-aligned status assessments were undertaken for all 331 species, and 341 stocks of Australian shark, ray and chimaera. A workshop of experts reviewed the proposed status all species before they were finalised to ensure consistent and peer-reviewed outcomes. A Report Card overview indicates that the majority of species are sustainable and in a healthy state; and while Australia’s approach to managing its shark stocks has to date been very good, this needs to be maintained and supported by ongoing research, monitoring and assessment. The significant resources generated by the project will be available publicly to ensure wide uptake of the outputs. 


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