15 results
Environment
Industry
PROJECT NUMBER • 2019-139
PROJECT STATUS:
COMPLETED

Evaluation of nanobubble technology in aquaculture

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...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
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)
Industry
PROJECT NUMBER • 2021-129
PROJECT STATUS:
COMPLETED

Understanding of spatial extent, infection window and potential alternative hosts for the oyster disease QX in Port Stephens

This report details an investigation by the NSW Department of Primary Industries into QX disease in Sydney Rock Oysters (Saccostrea glomerata; SROs) in Port Stephens during the 2022. This followed from the first incursion of this disease in this estuary in August of 2021. QX disease has...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
Industry
PROJECT NUMBER • 2015-213
PROJECT STATUS:
COMPLETED

Enabling land-based production of juvenile Yellowtail Kingfish in NSW

NSW DPI conducted a series of experiments and commercial-scale production to investigate the viability of producing advanced juvenile yellowtail kingfish (YTK, Seriola lalandi) at the Port Stephens Fisheries Institute (PSFI) during March 2016 - December 2018. There is a significant shortfall of...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
Industry
PROJECT NUMBER • 2015-011
PROJECT STATUS:
COMPLETED

Understanding the factors contributing to decreased school prawn productivity in Camden Haven Estuary and associated lakes, to target ameliorative actions

New South Wales Department of Primary Industries (NSW DPI) presents new information exploring the effect of catchment-derived stressors on Eastern School Prawn. Declines in School Prawn productivity over decadal time scales have been reported anecdotally across many estuaries in New South Wales, and...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)

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
:

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.
Environment
PROJECT NUMBER • 2007-038
PROJECT STATUS:
COMPLETED

Study of ghost fishing in the NSW rock lobster fishery

This project concerns an assessment of the significance ghost fishing in the NSW Rock Lobster Fishery and potential modifications to fishing gears and practices that could minimise trap loss and consequent ghost fishing of the target species, Eastern Rock Lobster, Sagmariasus verreauxi. The...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
Environment
PROJECT NUMBER • 2010-062
PROJECT STATUS:
COMPLETED

Shark Futures: Sustainable management of the NSW whaler shark fishery

New South Wales Department of Primary Industries (NSW DPI) presents new information exploring the shark catch of the NSW Ocean Trap & Line Fishery and developing methods to ensure an accurately reported, sustainable and profitable fishery for large sharks is maintained. A combination of...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
Industry
PROJECT NUMBER • 2003-209
PROJECT STATUS:
COMPLETED

Seafood CRC: Sydney rock oysters: overcoming constraints to commercial scale hatchery and nursery production

Objectives: 1. To establish protocols for improved broodstock conditioning and handling, particularly to permit out-of-season spawning of selected oyster stocks. 2. To determine the effects of the key autecological factors (temperature and salinity) and nutrition on SRO embryos and larvae, to...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
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