147 results
Industry
PROJECT NUMBER • 2003-226
PROJECT STATUS:
COMPLETED

Aquafin CRC - Southern Bluefin Tuna Aquaculture Subprogram: net fouling management to enhance water quality and southern bluefin tuna (Thunnus maccoyii) performance

The main aim of the 'Aquafin CRC - FRDC Southern Bluefin Tuna Aquaculture Subprogram: Net Fouling Management to Enhance Water Quality and SBT Performance' project was to better understand the impact of net fouling in sea-cage culture, specifically within the South Australian southern bluefin tuna...
ORGANISATION:
Aquaculture Management Consultants Pty Ltd
Environment
PROJECT NUMBER • 2005-082
PROJECT STATUS:
COMPLETED

Determining the impact of environmental variability on the sustainability, fishery dynamics and economic performance of the West Coast Prawn Trawl Fishery

The project has provided an understanding of how environmental variation has impacted on WCPF production. Chapter 1 contains the objectives of the study, background and need for the work. Chapter 2 provides a context for understanding of: a) oceanic and climatological processes which are associated...
ORGANISATION:
Spencer Gulf and West Coast Prawn Association (SGWCPA)
Environment
PROJECT NUMBER • 2001-060
PROJECT STATUS:
COMPLETED

Characterising the fish habitats in the Recherche Archipelago, Western Australia

This project is a joint Esperance community (through the Recherche Advisory Group - RAG), research scientist and resource management project. The commitment of RAG has allowed the researchers to efficiently transfer scientific information to the general public of Esperance and the South Coast of...
ORGANISATION:
University of Western Australia (UWA)

Determining ecological effects of longline fishing in the Eastern Tuna and Billfish Fishery

Project number: 2004-063
Project Status:
Completed
Budget expenditure: $562,357.40
Principal Investigator: Jock Young
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 14 Apr 2005 - 30 Nov 2008
Contact:
FRDC

Need

The ET&BF is presently dealing separately with a number of ecological issues. For example, impacts of longliners on shearwaters and turtles are current high profile problems. However, other issues such as depletion of swordfish, SBT bycatch, availability of tunas in relation to oceanographic features, bycatch of sharks and finning have all taken centre stage at different times in the short history of the domestic fishery. This approach is often reactionary, rather than strategic, and may not be the best use of research resources over the long-term. If the ET&BF is to move substantially toward ecosystem-based fishery management, as it is required to do under the EPBC act, rather than continue the individual species management approach, an ecosystem analysis providing ecosystem metrics must be developed. If, for example, ET&BF managers opt for time area closures as part of their management strategy to protect key species, developing these on a species-by-species basis has the potential to impact the whole fishery. To develop and evaluate time area closures that allow for minimizing risk of adverse impacts to the suite of key species, while allowing for optimal efficiency of fishing, understanding the associations, linkages and interactions between species is essential. This is the ecosystem approach. Developing an understanding of how ecosystem-associations relate to oceanographic features is also essential in open ocean systems where the dominant influence on distribution and local abundance is oceanography. The approach we are taking will provide the information needed to support an ecosystem-based management framework. Through the analyses we are proposing we will identify regional “hot spots”, detail their linkages and provide detailed scenarios as to how we think different management strategies and fishing practices will or will not impact pelagic food chains, ecologically related non-target species, competitors (e.g. sharks, marlins etc.) and their associated ecosystems. The need for ecosystem-based fishery management for the Western Pacific region has also been supported by PrepCon for the soon-to-be formed WCPFC (Working Paper 9, 2002).

Objectives

1. Identify the spatial extent and the temporal stability of the main ecosystems of the eastern tuna and billfish fishery based on their species composition and physical environment.
2. Define the trophic structure within these ecosystems with emphasis on the relationship between target, bycatch and threatened and protected species.
3. Develop an ecosystem model for the ETBF fishery incorporating data on the relative abundance of the species, trophic linkages and the physical environment from which the impacts of longline fishing on the ecosystem can be investigated and from which alternative harvest strategies can be evaluated.

Final report

ISBN: 9.78E+12
Author: Jock Young
Industry
PROJECT NUMBER • 2008-901
PROJECT STATUS:
COMPLETED

Seafood CRC: Clean Seas Tuna - Product Quality Issues (maturation and harvest stress)

Harvest stress and sexual maturation are known to affect the flesh quality and product shelf life in several species of fish. This preliminary study was undertaken to determine the extent of any impact of harvest stress and/or sexual maturation of males on product quality and shelf life attributes...
ORGANISATION:
SARDI Food Safety and Innovation
Industry
PROJECT NUMBER • 2011-771
PROJECT STATUS:
COMPLETED

Seafood CRC: genetic selection for Amoebic Gill Disease (AGD) resilience in the Tasmanian Atlantic salmon (Salmo salar) breeding program

Amoebic gill disease (AGD) continues to have a significant economic impact upon production of sea-farmed Atlantic salmon in Tasmania. Reducing mortality is economically important for the fish farmer and is equally important from an animal welfare perspective. The process of freshwater bathing...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
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Environment
PROJECT NUMBER • 2008-103
PROJECT STATUS:
COMPLETED

Tactical Research Fund: Adapting to change - minimising uncertainty about the effects of rapidly-changing environmental conditions on the Queensland Coral Reef Fin Fish Fishery

With the severity and intensity of tropical cyclones predicted to increase with global climate change (Webster et al. 2005), the need to understand the effects of these events on fisheries production is paramount. The northern tropical margin of the Australian continent is subject to tropical...
ORGANISATION:
James Cook University (JCU)
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