18 results
Adoption
Environment
PROJECT NUMBER • 2018-091
PROJECT STATUS:
COMPLETED

Assessment of national-scale tracking of commercially important fish species

In this FRDC project, a team from Integrated Marine Observing System Animal Tracking Facility (IMOS ATF), in coordination with state and federal agencies and the Fisheries and Aquaculture Research Providers Network (RPN) met. They systematically reconfigured the IMOS ATF national network to...
ORGANISATION:
Sydney Institute of Marine Science (SIMS)
Industry
PROJECT NUMBER • 2018-017
PROJECT STATUS:
COMPLETED

Demand Conditions and Dynamics in the Southern and Eastern Scalefish and Shark Fishery: Empirical Investigation

This final report, a collaboration between economists from CSIRO, CQU and ABARES, is the first detailed analysis of the interrelationship between fish prices on the Sydney and Melbourne fish markets. In addition, the study derived empirical estimates of the own and cross-price flexibilities for the...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
PROJECT NUMBER • 2014-203
PROJECT STATUS:
COMPLETED

SESSF Monitoring and Assessment – Strategic Review

The Southern and Eastern Scalefish and Shark Fishery (SESSF) is a multi-species, multi-gear, multijurisdictional Commonwealth fishery. It is a fishery of substantial economic and social importance to Australia, as a key provider of high quality fish products to Australian markets. More than 600...
ORGANISATION:
Australian Fisheries Management Authority (AFMA)
Environment
PROJECT NUMBER • 2014-024
PROJECT STATUS:
COMPLETED

Estimating the abundance of School Shark in Australia using close kin genetic methods

Close kin mark recapture (CKMR) provides an estimate of absolute abundance that is independent of fishing behaviour. We present a first CKMR estimate of abundance for School Shark and discuss the management implications of our findings. We found 65 half sibling pairs (HSPs), 3...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart

Mitigating seal interactions in the SRLF and gillnet sector SESSF in South Australia

Project number: 2007-041
Project Status:
Completed
Budget expenditure: $305,821.00
Principal Investigator: Simon D. Goldsworthy
Organisation: SARDI Food Safety and Innovation
Project start/end date: 30 Aug 2007 - 30 Jun 2009
Contact:
FRDC

Need

South Australia contains 80% of the endemic Australian sea lion (ASL) population, where substantial fishing effort in the gillnet sector SESSF (~20,000 km net-lifts/year) and SA RLF (~1.5 million pot-lifts/year) increase the risk of fatal interactions.

A recent risk assessment (FRDC 2005/077) identified that subpopulations of ASL are highly vulnerable to even low-level bycatch from fisheries, with >40% of subpopulations at risk of extinction from as little as 1-2 additional female deaths/year over a 20-25 year period. The risk assessment identified that the current high proportion of depleted subpopulations of the species may be entirely due to sustained low-level bycatch by commercial fisheries.

ASL are listed as a threatened species under the Commonwealth EPBC Act, and a recovery plan has identified bycatch from bottom-set gillnet and rock lobster fisheries as the most significant anthropogenic contributor to the species’ lack of recovery. As such the development of measures to mitigate interactions with sea lions forms the most pressing ESD issues for these fisheries.

ESD assessments of both the gillnet sector of the SESSF and SARLF fisheries have identified interactions with seals as a significant issue. These assessments make at least seven recommendations to address protected species interactions (including seals), but little if any progress has been made to address these to date.

In order to have southern rock lobster taken from South Australian waters placed on the list of exempt native specimens for export under Part 13 and 13(A) of the EPBC Act, there is an imperative to address these ESD recommendations, as failure to do so may jeopardise current and future export exemptions.

Objectives

1. Develop and assess methods for mitigating sea lion interactions with southern rock lobster pots
2. Develop spatial management options for reducing bycatch to high-risk sea lion subpopulations in the gillnet SESSF, and make recommendation on spatial management options to Shark RAG
3. Assess the significance of ASL bycatch in the high-risk regions of the gillnet SESSF to provide support for spatial management options developed in objective 2
4. Develop performance indicators to evaluate the effectiveness of the different mitigation options developed for each fishery

Final report

ISBN: 9.78E+12
Author: Simon Goldsworthy
View Filter

Research

Product Type

Species