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Aquatic Animal Health Subprogram: Edwardsiella ictaluri survey in wild catfish populations

Project number: 2012-050
Project Status:
Completed
Budget expenditure: $84,536.00
Principal Investigator: Alan Lymbery
Organisation: Murdoch University
Project start/end date: 24 Jun 2013 - 27 Apr 2015
Contact:
FRDC
SPECIES

Need

This application is developed following the first detection of the bacterium, Edwardsiella ictaluri, in Australian native catfish species. This bacterium is known to cause significant economic losses in aquaculture catfish industries in the USA and south-east Asia. The bacterium is listed in the reportable aquatic disease lists in Australia and regionally in OIE/NACA (Network of Aquaculture Centres in Asia-pacific). Previous bacterial detections in Australia have been sporadic and limited to imported exotic aquarium fish species. The susceptibility of Australian native fish species to the bacterial infection was unknown prior to 2010, and Biosecurity Australia’s last Import Risk Analysis in 1999 on live ornamental finfish did not consider the bacterium would have significant impact on native Australian species. However, it is now established that Australian native catfish species are susceptible to the bacterial infection. It is desirable to conduct a well-designed targeted survey to look for the bacterium in wild fish populations, and to provide evidence to support Australian’s wild fish populations are free from the disease.

Objectives

1. 1. Design a targeted survey for Edwardsiella ictaluri in wild catfish in rivers in northern Australia to establish disease freedom with 95% confidence at prevalence less than 5%
2. 2. Conduct an active survey of wild catfish populations in river systems in northern Australia for the presence of Edwardsiella ictaluri by appropriate lab tests

Impact of management changes on the viability of Indigenous commercial fishers and the flow on effects to their communities: case study in NSW

Project number: 2010-304
Project Status:
Completed
Budget expenditure: $74,087.00
Principal Investigator: Stephan B. Schnierer
Organisation: Southern Cross University (SCU) Lismore Campus
Project start/end date: 30 Sep 2010 - 30 Sep 2011
Contact:
FRDC

Need

Indigenous commercial fishers* (ICF) make up a small percentage of commercial fishers in NSW. They are usually small operators that;

(i) derive a personal income, and

(ii) many cases, supply some catch for local indigenous community consumption.

The NSW Indigenous Fisheries Strategy 2002 emphasized the importance of indigenous participation in the commercial fishing sector. A workshop conducted with ICF in 2003 identified obstacles to ongoing and future participation in the sector. Several issues were identified see 'A Draft Discussion Document and Action Plan. Developing the participation of Indigenous people in commercial fishing. A Report commissioned by NSW Fisheries '. One of the main issues identified was;

'The gradual and continuing decline of Aboriginal commercial fishers in the industry means loss of an accessible and appealing employment base for Aboriginal communities'.

To date little has been done to address the decline and recent communication with some ICF, particularly in far northern NSW, indicate that it is continuing. ICF indicate that ongoing changes to management approaches in NSW are making it even more difficult for them to stay now then previously.

There is an urgent need to analyse the possible impacts of new management changes (structural readjustment in NSW - see the Pyrmont Pact) on indigenous participation in commercial fisheries and to develop revised strategies that seek to maintain the existing levels and where possible increase indigenous involvement in commercial fisheries so as to address (i) and (ii) above.

*Here we are talking about indigenous participation in commercial fisheries, not cultural fisheries.

Objectives

1. Case study of indigenous commercial fisheries focussing initially on NSW as a basis for a national study
2. Determine the number of indigenous commercial fishers in NSW
3. Estimate the percentage of commercial catch made available to indigenous communities for personal consumption.
4. Identify management changes likely to impact indigenous participation in commercial fisheries and how they will impact.
5. Develop strategies to ameliorate the impacts of management change on indigenous participation in commercial fisheries.

Final report

ISBN: 978-0-9874424-0-6
Author: Stephan Schnierer
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