203 results
Communities
PROJECT NUMBER • 2017-010
PROJECT STATUS:
COMPLETED

A re-examination of underlying model assumptions and resulting abundance indices of the Fishery Independent Survey (FIS) in Australia’s SESSF

The model-based Fishery Independent Survey (FIS) for the Southern and Eastern Scalefish and Shark Fishery (SESSF) was developed in the lead up to the first survey in 2008 and is unique in a fisheries context in that it differs from a random stratified design, thereby allowing considerable...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
Industry
PROJECT NUMBER • 2016-060
PROJECT STATUS:
COMPLETED

Healthcheck Phase 2

Sustainability is a broad and complex concept, and consideration of the diverse suite of factors involved in social, economic, ecological and governance arrangements is needed to create truly sustainable food production industries. Australian fisheries encompasses a much broader range of issues than...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart

Tactical Research Fund: Using innovative techniques to analyse trends in abundance for non-target species

Project number: 2010-057
Project Status:
Completed
Budget expenditure: $68,235.00
Principal Investigator: Malcolm Haddon
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 30 Nov 2010 - 30 Jul 2011
Contact:
FRDC

Need

EBFM requires performance indicators for a wide range of species that interact with fisheries, and systems to monitor those performance indicators. However, there is no routine monitoring of the status of the many commercially important byproduct and bycatch species. The assessment of these non-target species remains important in terms of the Commonwealth Harvest Strategy Policy and AFMA have expressed a need for a solution to how to assess the relative status of these species. Such monitoring is required for strategic assessment under the EPBC Act (1997).

Most of non-target species are not under quota and while not directly targeted they can still experience significant fishing mortality and add value to the landed catch. Currently, if they are assessed at all, the assessments merely apply the same strategies as adopted for target species. There is often a perception that CPUE should be disregarded “because the species was not targeted”. There is a need to determine whether alternative methods should be applied to such species that take into account the fact that their catch is incidental to the main activities of the fishers and hence the fishery dependent data for the non-target species will have different qualities. By definition these fisheries are multi-species in nature and this too can complicate their assessment. Technically this is not a trivial problem and more clarity is needed concerning the scope of the issue and how to deal with it. Rather than launch immediately into a relatively long term attempt at finding a solution, a more efficient approach is proposed that involves expert examination and rapid review to map the road ahead. Hence there is a need to conduct workshops aimed at clarifying the management requirements and the most cost effective approach to solving these management issues, which apply to all multi-species data poor fisheries.

Objectives

1. Test analysis methods against available datasets capable of providing trend in abundance estimates for byproduct and bycatch species
2. Conduct two workshops, aimed at identifying the management issues and the techniques available for analyzing trends in abundance in non-target species.

Final report

ISBN: 978-0-643-10812-7
Author: Malcolm Haddon
Industry
Environment
PROJECT NUMBER • 2009-029
PROJECT STATUS:
COMPLETED

Ecological risk assessment for effects of fishing on habitats and communities

It is now widely recognized that fisheries can have impacts on marine species, habitats and ecosystems beyond the direct impacts of fishing on target species. For example, hundreds of species are regularly caught and discarded in many trawl and longline fisheries and in particular, interactions with...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Environment
Environment
PROJECT NUMBER • 2017-102
PROJECT STATUS:
COMPLETED

Reducing the Number of Undefined Species in Future Status of Australian Fish Stocks Reports: Phase Two - training in the assessment of data-poor stocks

Seven data-poor assessment method training workshops were run in seven different jurisdictions (Tasmania, Victoria, South Australia, Western Australia, Northern Territory, Queensland, and New South Wales). Originally the workshops were to have been undertaken from March to the end of May 2018....
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
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