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Stable isotopes: a rapid method to determine lobster diet and trace lobster origin?

Project number: 2021-020
Project Status:
Completed
Budget expenditure: $31,890.00
Principal Investigator: John P. Keane
Organisation: University of Tasmania
Project start/end date: 30 Jun 2021 - 29 Jun 2022
Contact:
FRDC

Need

1. Tracing lobster origin
The need for determining whether stable isotopes are a useful tool for diet analysis and identification of catch location is a priority for the SRL fishery. If proved useful, this technology will allow for rapid identification and isolation of stock abnormalities – such as toxic algal blooms, which has potential to save a lot of time and money for fisheries management.

2. Invasive urchin controls
If results show that small lobsters do predate on urchins, this will be important for informing stock rebuilding targets and reference points relative to urchin control. Primarily we could advise on whether urchin control targets and performance indicators should be based on total lobster biomass or only large lobster biomass. For example, if small lobsters (140mm CL) are found to actively predate on small urchins, the pressure to rebuild the large lobster biomass (>140mm CL) may be reduced. This could in turn help to adapt the rebuild strategy, in line with effective urchin control.

Objectives

1. To determine the level of stable isotope variation within individual lobster tissues (e.g. muscle vs shell) and identify a non-lethal and minimally destructive method of sampling for stable isotopes.
2. To describe lobster diet off eastern Tasmania and quantify the role of smaller lobsters (&lt
140mm CL) in the predation and control of Longspined Sea Urchin in Tasmania.
3. To ascertain if stable isotopes can be used to identify catch location of individual lobsters post-harvest across SE Australia

Final report

ISBN: 978-1-922708-49-6
Authors: Jennifer E. Smith John Keane Michael Oellermann Craig Mundy & Caleb Gardner
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.
Final Report • 2023-05-01 • 1.66 MB
2021-020-DLD.pdf

Summary

Scientists at IMAS conducted a stable isotope study on Southern Rock Lobster (Jasus edwardsii) collected from Southern Australian sites to determine whether or not capture site could be determined post-harvest.

SafeFish 2021-2025

Project number: 2021-018
Project Status:
Current
Budget expenditure: $1,561,242.00
Principal Investigator: Alison Turnbull
Organisation: Institute for Marine and Antarctic Studies (IMAS) Hobart
Project start/end date: 5 Jul 2021 - 29 Jun 2025
Contact:
FRDC

Need

Maintaining and enhancing market access for Australian seafood is critical for future industry survival and growth, particularly during and following the COVID-19 epidemic. SafeFish makes a significant contribution to this by carrying out the following:

1. Food safety incident response. SafeFish provides industry and government with immediate technical information required to respond to incidents relating to food safety and/or market access. Subsequently, technical input is provided to update policies for prevention of similar incidents and respond to them should they recur. Appropriate technical responses reduce the impact of food safety incidents and ensure better outcomes for future management.

2. Technical input to inter-government consultations on food regulations and market access. It is essential for the Australian seafood industry to participate in consultations such as Codex and monitor top export destination regulatory changes through WTO SPS notifications to ensure that proposed new, or modified, regulations are pragmatic and cost-effective for the Australian seafood industry. It is far easier to influence standards under development than after they have been finalised. Similarly, it is essential for the seafood industry to stay in close contact with Food Standards Australia and New Zealand (FSANZ) when domestic food safety regulations are reviewed.

3. Proactive research, risk analyses and training. The safety of Australian seafood is not negotiable in domestic and international markets. Over recent years SafeFish has conducted many activities to assist the industry anticipate and minimize food safety risks. The objective of these activities has always been to identify and mitigate risks before they cause a problem, or to grow knowledge to enable us to improve our risk management in a cost effective manner.

Objectives

1. To deliver robust food safety research and advice to industry and regulators that underpins Australia's reputation as a producer of safe seafood
2. To maintain and enhance the capabilities in Australia to provide that research and advice in a cost effective, efficient and timely manner.
Industry
PROJECT NUMBER • 2020-126
PROJECT STATUS:
COMPLETED

Australian Agrifood Data Exchange (OzAg Data Exchange): Deliver an interconnected data highway for Australia's AgriFood value chain - Proof of concept

Pain point: The delay in exchange and reconciliation of catch data by fishers and processors means that there is a delay in quota accounting which impacts planning due to lack of timely information. Furthermore, with no access to pre-fishing information data to the processors means they are unable...
ORGANISATION:
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Blank
Industry
Industry
PROJECT NUMBER • 2020-093
PROJECT STATUS:
COMPLETED

Discussion Papers on seafood traceability and labelling

All food sold in Australia must comply with the Food Standards Code. Food label claims are subject to Australian Consumer Law, prohibiting false, misleading or deceptive behaviour. Australian seafood consumers face existing risks and confusion regarding species, nomenclature, and...
ORGANISATION:
Intuitive Food Solutions
Environment
PROJECT NUMBER • 2020-065
PROJECT STATUS:
CURRENT

Indicators for density and biomass of exploitable abalone – developing and applying a new approach

The objectives of this project are to use the Victorian Western Zone (WZ) abalone fishery to develop and evaluate a new approach to calculating abalone density and biomass indicators from the combination of three information sources. The three information sources are: i. ...
ORGANISATION:
Western Abalone Divers Association (WADA)
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