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Industry
PROJECT NUMBER • 2018-024
PROJECT STATUS:
COMPLETED

Investigation and improvement of live Blue Swimmer Crab handling in NSW

This report presents pivotal findings from an in-depth investigation into optimising live handling practices for the commercial Blue Swimmer Crab (Portunus armatus) industry in New South Wales (NSW), with the overarching goal of unlocking high-value live trade opportunities. Initiated in...
ORGANISATION:
Department of Primary Industries (QLD)
TAGS
Rac Nsw
Post Harvest
Mortality
Fisheries Management
Audit
SPECIES
Blue Swimmer Crab

Southern Rock Lobster Clean Green program, revision, digitisation & extension across the supply chain

Project number: 2017-224
Project Status:
Completed
Budget expenditure: $705,117.00
Principal Investigator: Ross J. Hodge
Organisation: Southern Rocklobster Ltd (SRL)
Project start/end date: 29 Apr 2018 - 14 Feb 2020
Contact:
FRDC
SPECIES
Southern Rock Lobster

Need

Currently more vessels are participating in the Clean Green program than at any stage since first introduced in 2004. Re-aligning Clean Green to address new and changing legislative requirements has been the key driver for the increased support from industry. The process of revising the program content and on-going dialogue with regulators has identified that Clean Green must / will continue to be an evolving program to address regulatory changes and update the program content. Therefore a project is required to deliver a digitised operationally focussed, benchmark responsible fishing standard including support and auditing materials for the Australian seafood industry that will:
• Improve ongoing program administration (as regulators e.g. SWSA, AMSA and DAWR, continue to change and update relevant legislative requirements, the maintenance of a paper-based program will become unsustainable.
• Extend the Clean Green program into the post-harvest sector of the supply chain and provide a medium for SRL to ‘extend’ relevant outputs from other R&D in which the industry has invested to interested businesses e.g. traceability and ‘lobster health’.
• Improve communications and audit procedures with / for the Clean Green Auditor to streamline and reduce cost of independent third-party auditing processes
• Generate usable data for relevant regulators and seek their recognition / accreditation of the program and further opportunities for Clean Green to serve as a tool for industry self-regulation.
• Streamline program management and financial control of the program e.g. invoicing, scheduling of auditing, raising and closing out of Corrective Action Requests (CARs), physical auditing of vessels, communication with members, improved efficiency and effectiveness of Clean Green training and refresher training.
• Increase the transferability of the Clean Green ‘product’ to other catching sectors. This may aid with generating greater economies of scale and assist the Clean Green Program, and its management, to become financially self-sustaining to a greater degree.

Objectives

1. Revise and update Clean Green Program Material (catching sector) to meet stakeholder requirements and formatted for digitisation
2. Review and revise existing and develop new Clean Green Program material for exporter / post harvest operations and formatted for digitisation
3. Digitise the revised Clean Green Program so it can be implemented in a device application (app) software format (2 Apps: 1 Catching 1 Exporter)
4. Launch and Roll Out the Revised and Digitised Clean Green Program

Final report

ISBN: 978-0-9803977-5-8
Author: Ross Hodge and Justin Phillips
Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Final Report • 2023-05-05 • 2.86 MB
2017-224-DLD.pdf

Summary

First introduced in 2004, the Southern Rocklobster Limited Clean Green Program was developed as an integrated pot-to-plate Product Standard with independent third-party auditing of practices. During the period 2013 to 2015 the Clean Green Program was considerably updated for the first time to address the introduction of AMSA’s National Standard for Commercial Vessels, resulting in greater industry adoption with approx. 60% increase in vessel use across the 3-year period. The re-alignment of the Clean Green Program to address new and changing legislative requirements e.g. the introduction of the National Standard Commercial Vessels by the Australian Maritime Safety Authority and new Work, Health & Safety requirements, had been the key driver for the increased support from industry. This highlighted the need for the Clean Green Program to continue to evolve to address regulatory changes and, accordingly, the required updating of program content (in consultation with Regulators). This project was required to adapt 21st century technology to deliver a digitised, operationally focussed, Clean Green Program that can be more efficiently updated and disseminated to industry.  

Influence of freshwater flows on growth and abundance of Barramundi and Mud Crab in the Northern Territory

Project number: 2015-012
Project Status:
Completed
Budget expenditure: $286,000.00
Principal Investigator: Alison J. King
Organisation: Charles Darwin University (CDU)
Project start/end date: 30 Jun 2015 - 29 Jun 2017
Contact:
FRDC
TAGS
Rac Nt
Oceanography
Freshwater
Biotechnology
Ageing
SPECIES
Barramundi
Mud Crabs

Need

The way water is allocated in the future, and how we find a balance between competing industries, is vital to the Northern Territory (NT) and National economies. In order to achieve this, the fishing industry and Government require a more predictive and quantitative understanding of the role of river flows in driving fisheries productivity.

This project provides the first rigorous analysis of specific flow components that drive the productivity of the barramundi and mud crab fishery in the NT. We will quantify these relationships, test a range of water extraction scenarios and explore their impact on downstream fish populations and fisheries. This will contribute to informed decision-making about future water allocations and contribute to Government policies and strategies, particularly around the current northern Australia development agenda. This project directly addresses NT FRAB Priority 3.

Previous analyses show that barramundi (e.g. Robins et al 2005; Tanimoto et al. 2012) and mud crab catches (Meynecke et al. 2012) are positively related to coarse hydrological metrics (e.g. total wet season flows). However, the mechanisms driving these relationships remain speculative and it is difficult to determine the effects of specific flow management regimes. For example, it is currently unknown if dry season flows affect fisheries production, or if there are thresholds of wet season flows which alter fisheries productivity. This project will use new, innovative biochronological techniques to better quantify the relationship between hydrological variables and the productivity of barramundi and mud crab fisheries in the NT.

Objectives

1. Undertake ageing and biochronological measurement of barramundi otoliths and mud crab ossicles, and collate NT catch and environmental data (e.g. river discharge).
2. Develop rigorous, regionally specific empirical models to quantify the relationships between fisheries productivity and various metrics of freshwater inflow using advanced statistical techniques.
3. Provide research findings to industry and government for a scientifically defensible and robust basis for decisions on the future use of water in northern Australia in relation to fisheries resources.

Final report

Authors: David Crook John Morrongiello Alison King Brendan Adair Mark Grubert Thor Saunders Michael Douglas Brien Roberts
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Final Report • 2021-02-01 • 2.32 MB
2015-012-DLD.pdf

Summary

The research presented in this report was led by Charles Darwin University and conducted in collaboration with the University of Melbourne and the Fisheries Division of the Northern Territory (NT) Department of Primary Industries and Resources (DPIR). A novel statistical modelling framework based on age and growth data from otolith analyses was used to examine relationships between recruitment and growth of Barramundi and a range of climatic and river hydrology variables in four rivers in the NT. We found strong evidence that the magnitude of Barramundi recruitment was linked to the strength of the Australian Monsoon Index. This relationship offers potential to predict future fisheries yields three years in advance based on observed meteorological phenomena. We used river-specific hydrology analyses to predict the effects of water abstraction on Barramundi recruitment and growth. Scenario analyses predicted strong negative effects of water abstraction (>30% in several scenarios) on Barramundi recruitment, with the predicted effects variable among river systems. Results of the analyses were communicated to DPIR and the NT Department of Environment and Natural Resources (DENR) via a series of presentations to promote their use in future fisheries management and water resource planning.
The second component of the report describes an evaluation of the utility of gastric ossicles (calcified mouthparts) for direct age estimation in the Giant mud crab. Originally, we intended to use growth increments in gastric ossicles using the methods of Leland and Bucher (2017; FRDC 2014/011) to undertake analyses similar to those described above for Barramundi. However, we identified significant issues in the early stages of the project which raised concerns regarding the technique’s suitability for Giant mud crab and, potentially, other species of crustacean. In light of these concerns, the emphasis of this project component was shifted towards a comprehensive assessment of the use of gastric ossicles for direct ageing of Giant mud crab. Based on this assessment, we conclude that considerable further research on method validation is required before direct ageing of crustaceans is adopted in fishery research and monitoring. In the meantime, we caution against the use of this age estimation technique for crustaceans.
Industry
PROJECT NUMBER • 2013-746
PROJECT STATUS:
COMPLETED

Seafood CRC: optimising the size and quality of sardines through real-time harvest monitoring

In order to improve the commercial profitability and sustainability of the South Australian Sardine Fishery (SASF) there was a need to establish improved monitoring and harvest management practices based on an understanding of Sardine habitat preferences. In this project, the South Australian...
ORGANISATION:
SARDI Food Safety and Innovation
TAGS
Rac Sa
Harvest Strategy
Habitat
Fisheries Management
Disease
SPECIES
Sardines
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