172 results
Environment
PROJECT NUMBER • 2020-104
PROJECT STATUS:
COMPLETED

Evaluating of the role of direct fish-to-fish contact on horizontal transmission of Koi herpesvirus

Epidemiological modelling has been undertaken to evaluate the impact of CyHV-3 as part of an assessment of the feasibility of this virus as a potential biocontrol for carp in Australia. The present project provides information to support key components of the mechanisms of virus transmission which...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
SPECIES
European Carp
Environment

Evaluation of nanobubble technology in aquaculture

Project number: 2019-139
Project Status:
Completed
Budget expenditure: $294,869.00
Principal Investigator: Igor Pirozzi
Organisation: Department of Primary Industries and Regional Development (NSW)
Project start/end date: 30 Jun 2021 - 29 Jun 2023
Contact:
FRDC
TAGS
Rac Nsw

Need

In intensive aquaculture systems oxygen supplementation is necessary to prevent hypoxia; however, oversupply can hyper-saturate systems causing gas bubble disease. Oxygenation in aquaculture, fish holding and transport systems using standard technologies is extremely inefficient; standard oxygen transfer efficiencies (SOTE) are estimated at between 2 and 6% per m submergence for coarse and fine bubble diffusers, respectively, at standard conditions of 0 ppt salinity and 20 °C. Advances in the efficiency of gas–liquid phase processes has seen the emergence of nanobubble technologies producing ultrafine bubbles (⌀ 1 µm). The advantage of nanobubbles over larger micro/macrobubbles is that they are neutrally buoyant, negatively charged and can remain within the water column, potentially for weeks. Nanobubble technologies now have a demonstrated application across a broad variety of industries including wastewater treatment, biomedical engineering, gas and oil industry, agriculture, and the food industry. Surprisingly, outside of Japan, there has been little research on the application of nanobubble technology to the aquaculture sector. Nanobubble technology can potentially improve oxygen delivery systems for fish stock and water treatment in aquaculture systems, improving the nitrifying capacity of biofilters and efficiencies in fractionation units. However, there are currently no reliable studies demonstrating the efficacy of nanobubble technology, nor any assessment of the potential health impacts on fish in aquaculture systems. We have undertaken a preliminary pilot trial with encouraging results. Oxygenation was applied to a recirculating aquaculture system via nanobubble injectors for 10 days and fish (yellowtail kingfish) were observed to feed and behave normally when compared to a control group. Before this technology can be considered for broader adoption, a thorough long term investigation needs to be undertaken to assess the long term health effects on fish stock held in nanobubble oxygenated water and the suitability for application of this technology to the aquaculture industry.

Objectives

1. To demonstrate the efficacy of nanobubble technology for use in finfish aquaculture by:i) assessing the health, growth and feed conversion efficiencies of fish cultured in a recirculating aquaculture system at different temperatures, salinities and stocking densities exposed to nanobubblesii) determining the effect of nanobubble oxygenation on waste water treatment efficiencies in a recirculating aquaculture system.iii) providing a preliminary cost benefit analysis on the implementation of nanobubble aeration to an aquaculture system

Final report

Author: Igor Pirozzi
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Final Report • 2025-02-21 • 2.76 MB
2019-139-DLD.pdf

Summary

Nanobubble (NB) technology, i.e. the production of ultrafine bubbles with diameters <1 µm, is an emerging field which has the potential to greatly improve oxygenation efficiencies in aquaculture production. Before this technology can be considered for adoption by the aquaculture industry, a thorough assessment of the health and growth effects on fish stock held in NB oxygenated water is required. Three trials were conducted to compare NB technology with conventional oxygenation setup (ceramic diffusers and air stones, oxygen gas and air) in a recirculating aquaculture system (RAS) under a number of different aquaculture scenarios testing i) stocking density, ii) salinity, and iii) temperature. 
Environment
PROJECT NUMBER • 2019-103
PROJECT STATUS:
COMPLETED

Strategic Planning Workshop for Yellowtail Kingfish Stock Assessment in South-Eastern Australia

The project facilitated cross-jurisdictional and cross-sectoral discussions on aspects of the Eastern Australia biological stock of Yellowtail Kingfish. Several knowledge gaps relating to biological and life-history parameters, as well as reliable data on the recreational fishery across all...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
TAGS
Tagging
Stock Assessment
Resource Rehabilitation
Recreational Fishing
Rac Vic
SPECIES
Yellowtail Kingfish

An updated understanding of Eastern School Whiting stock structure and improved stock assessment for cross-jurisdictional management

Project number: 2019-030
Project Status:
Current
Budget expenditure: $451,748.00
Principal Investigator: Karina C. Hall
Organisation: Department of Primary Industries and Regional Development (NSW)
Project start/end date: 31 Aug 2019 - 21 Sep 2022
Contact:
FRDC
TAGS
Stock Assessment
Rac Vic
Rac Nsw
Rac Cmwth
Migration
SPECIES
School Whitings

Need

Most of the commercial catch of Eastern School Whiting is taken by the Commonwealth South East Trawl (SET) sector of the Southern and Eastern Scalefish and Shark Fishery (SESSF) in eastern Victorian waters and Bass Strait and in the NSW Ocean Trawl Fishery in central and northern NSW waters. Smaller amounts are reported from inshore state waters of southern NSW, Victoria and Tasmania (Conran et al. 2018).

Eastern School Whiting have been managed by catch quotas in Commonwealth fisheries since 1993. A Commonwealth Tier 1 stock assessment is completed every 3–5 years to estimate the recommended biological catch (RBC) for the entire biological stock. Historically, the estimated discards and average state catches were then subtracted from the RBC to set the Commonwealth total allowable catch (TAC). The most recent stock assessment in 2017, calculated an RBC of 1,606 t and the 2019–20 Commonwealth TAC was set at 788 t.

A new basket TAC for Eastern School Whiting and Stout Whiting was introduced in NSW state waters from May 2019 (set at 1,189 t for the 2019–20 fishing year). While some of this catch is likely to comprise Stout Whiting, the combined total of the two independently determined TACs could permit total catches of Eastern School Whiting that exceed the current RBC for the shared stock. Furthermore, as part of these management reforms, the NSW Southern Fish Trawl Fishery is to transition into the Commonwealth SET, which will include allocation of Commonwealth quota to existing state operators. A review of the existing cross-jurisdictional stock assessment and management arrangements for this species is urgently needed to ensure sustainable fishing continues to occur.

Critical information gaps that are hindering this process include the uncertain stock structure of Eastern School Whiting, mixed species composition of whiting in northern NSW and representativeness of biological parameters currently used in the joint stock assessment. This collaborative project between Commonwealth and state agencies aims to fill these information gaps using state-of-the-art scientific methods to increase confidence in stock assessment outputs and help develop appropriate cross-jurisdictional management arrangements.

Objectives

1. To clarify the stock structure of Eastern School Whiting in south-eastern Australian waters using a range of modern methods.
2. Investigate the spatial and temporal variation in the main biological parameters (length and age structures, growth and reproductive biology) of Eastern School Whiting across the species’ distribution.
3. Investigate the species composition of mixed trawl whiting catches in northern NSW to improve the quality of state catch data used in stock assessments.
4. Explore the effects of the findings from the first three objectives on the outputs of an updated Tier 1 stock assessment for Eastern School Whiting.

Improving and promoting fish-trawl selectivity in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF)

Project number: 2019-027
Project Status:
Completed
Budget expenditure: $776,141.00
Principal Investigator: Matt K. Broadhurst
Organisation: Department of Primary Industries and Regional Development (NSW)
Project start/end date: 29 Jul 2020 - 29 Sep 2024
Contact:
FRDC
TAGS
Rac Cmwth
Innovation
Fishing Gear
Environmental Impact
Economic

Need

It is very clear that fishing-technology research to improve resource harvesting is a priority need for the future sustainability of fish trawling in Australia. The issue is quite poignant, considering that over the past 15 years, there has been a massive reduction in the total number of trawlers in Australia, and lower profits among remaining operators struggling to remain viable. Innovative modifications and refinements to existing systems that improve selectivity and reduce environmental impacts and costs are an urgent priority to ensure economic viability. Such developments are difficult to achieve by individual fishers without quality research, development and extension that is adequately resourced.

More specifically, there is a clear need to maintain progress towards developing innovative, high-priority technological modifications to fish trawls in the CTS and GABTS that mitigate sustainability issues while maintaining target catches at existing levels. Equally important, ratified designs then need to be tested across fleets to encourage adoption and refinement as a precursor to eventual legislation. Ultimately, satisfying these needs will contribute towards improving the social licence and economic return of trawl fisheries in the SESSF, while helping to ensure their ongoing sustainability and address what remains one of the most controversial issues facing bottom trawling.

Objectives

1. Review the available domestic and international literature and data, and consult with a project stakeholder committee (comprising representatives of the CTS, GABTS, NSW PFA and AFMA) to prioritise modifications to be formally assessed for their utility in minimising bycatch, while maintaining target catches among trawls used in the CTS and GABTS.
2. Based on the outcomes of 1 above, assess the utility of existing and new modifications to trawls for minimising bycatch, while maintaining target catches in the CTS and GABTS.
3. By providing strong economic incentives through improved efficiencies, and via applied extension activities, encourage the wide-scale voluntary adoption and ongoing exploration of appropriate best-practice technologies that cumulatively reduce bycatches, while maintaining target catches in the CTS and GABTS.

Final report

ISBN: 978-1-76058-820-5
Author: Matt K Broadhurst
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Final Report • 2024-11-18 • 21.33 MB
2019-027-DLD.pdf

Summary

This project sought to produce the first-ever review of technical options for improving fish-trawl selectivity around the planet and then use this information to address a deficit in experimental work quantifying the utility of industry-developed and new selective-gear modifications in the Commonwealth Trawl Sector (CTS) and Great Australian Bight Trawl Sector (GABTS) of the Southern and Eastern Scalefish and Shark Fishery (SESSF). The work was completed during a four-year collaboration (from September 2020) between the New South Wales Department of Primary industries (NSW DPI), Fishwell Consulting, the Australian Fisheries Management Authority (AFMA), Commonwealth Scientific and Industry Research Organisation (CSIRO), South East Trawl Fishing Industry Association (SETFIA) and the Great Australian Bight Industry Association (GABIA). Ultimately, by highlighting regional industry efforts and identifying and validating the benefits of new options to reduce one of the most controversial issues facing bottom trawling, the project contributes towards improving the social licence and economic return of trawl fisheries in the SESSF, and supports ongoing Australian research into technological solutions to ensure fishery sustainability.
Environment
PROJECT NUMBER • 2019-021
PROJECT STATUS:
CURRENT

Integrating recreational fishing information into harvest strategies for multi-sector fisheries

This interim report provides an update on workshops with recreational fishers, scientists and managers to investigate recreational fishing objectives for three stocks of recreational importance in NSW &ndash; Mulloway, Yellowtail Kingfish, and Snapper. The study forms part of a broader research...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
TAGS
Stock Assessment
Software
Resource Sharing
Resource Sharing
Recreational Fishing
Environment
PROJECT NUMBER • 2019-016
PROJECT STATUS:
CURRENT

Estimating the biomass of fish stocks using novel and efficient genetic techniques

This project represents the first detailed study exploring the relationship between eDNA concentrations and the biomass and/or abundance of some economically and ecologically important (primarily freshwater) fish species in Australia. The work was conducted over four-and-a-half-years as part of a...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
TAGS
Stock Assessment
Rac Nsw
Population Dynamics
Fishing Gear
Fisheries Management
SPECIES
Mulloway
Murray Cods
Blank
PROJECT NUMBER • 2018-125
PROJECT STATUS:
COMPLETED

Evaluation of practical technologies for Perfluoroalkyl (PFA) remediation in marine fish hatcheries

Per- and poly-fluoroalkly substances (PFASs) are now emerging as pollutants with potentially catastrophic impact on aquaculture facilities. Two key research institutes, Port Stephens Fisheries Institute (PSFI) in NSW and Australian Centre for Applied Aquaculture Research (ACAAR) in Western Australia...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
TAGS
Pollution
Physiology
Innovation
Husbandry
Aquaculture
Environment
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