12 results
Environment
Environment
PROJECT NUMBER • 1983-050
PROJECT STATUS:
COMPLETED

South Australian deep water line fishing developments

During November and December 1983 and February to May 1984, the Commonwealth funded South Australian Deep Water Line Fishing Survey investigated the viability of droplining and trotlining on the continental slope off southeast Australia. At present many south Australian fishermen rely heavily on...
ORGANISATION:
SARDI Food Safety and Innovation
Environment
PROJECT NUMBER • 1993-050
PROJECT STATUS:
COMPLETED

Leeuwin environment index - pelagic recruitment strength relationship

This study investigated the relationships between recruitment of Australian salmon (western species Arripis truttaceus) in Barker Inlet, South Australia for the period 1981-1994 and environmental factors such as wind, mean sea level, Southern Oscillation Index (SOI) in spawning grounds Western...
ORGANISATION:
SARDI Food Safety and Innovation
Blank
Environment
PROJECT NUMBER • 2015-018
PROJECT STATUS:
COMPLETED

Do commercial fishery data reflect stock status in South Australia's Southern Garfish fisheries?

During the early 2000s, stock assessments highlighted considerable issues with the status of South Australia’s stocks of Southern Garfish (Hyporhamphus melanochir). This led to significant management changes that were implemented in 2005, which included the introduction of new...
ORGANISATION:
SARDI Food Safety and Innovation

Development of an integrated fisheries management model for King George whiting (Sillaginodes punctata) in South Australia

Project number: 1995-008
Project Status:
Completed
Budget expenditure: $461,163.00
Principal Investigator: Anthony J. Fowler
Organisation: SARDI Food Safety and Innovation
Project start/end date: 29 Dec 1995 - 30 Jun 2001
Contact:
FRDC

Objectives

1. To produce an age-structured, spatial-temporal fishery model for King George whiting in South Australia based on a comprehensive understanding of its biology, life-history and genetics as well as an analysis of the fishery. This model will be used as a stock assessment tool to assess management options.
2. To implement a biological research programme to facilitate objective 1/, including: a/. determination of site-specific age-structures based on ageing fish using otoliths, to be used for estimation of demographic parameters
b/. completion of the understanding of the life-history including reproductive, early and adult biological information
c/. assessment of genetic variation amongst populations over two spatial scales (amongst states and amongst regions within SA).
3. To review current commercial catch and effort information to: a/. identify the value of such data for estimating population abundance
b/. continue an on-going assessment of impacts of technological advances in fishing equipment on catch and effort in the commercial sector of the fishery
c/. compare commercial catch with that from recreational catch information currently being collected in SA using creel surveys (FRDC 92/81).

Guide

Author: Anthony Fowler
Guide • 7.64 MB
1995-008-PDT-1.pdf

Summary

The King George Whiting Simulator (WhitSim) is a simulation version of the Whiting Estimator (WhitEst) encased inside a graphical user interface (GUI) that includes geographical information systems (GIS). WhitSim provides the ability to simulate various management strategies and parameter scenarios and interrogate results of the simulation via in-built statistical, curve fitting and indicator analysis modules.

Final Report • 2000-08-31 • 11.76 MB
1995-008-DLD.pdf

Summary

King George whiting (Sillaginodes punctata) remains a prime target species of the marine scalefish fishery of South Australia. Levels of fishing mortality are high on inshore populations throughout the fishery which has caused concern about the level of egg production. This prompted the need for a comprehensive stock assessment for this fishery. However, complicating this task is the fact that the life-history incorporates an obligate migratory step where fish move from shallow, inshore areas where they are heavily targeted, to deeper, more exposed places where the spawning populations occur.

Environment
PROJECT NUMBER • 2003-072
PROJECT STATUS:
COMPLETED

Trophodynamics of the GAB: assessing the need for an ecological allocation in the SA pilchard fishery

Shelf waters off southern Australia support the world’s only northern boundary current ecosystem. Although there are some indications of intense nitrate enrichment in the eastern Great Australian Bight (GAB) arising from upwelling of Subantarctic Water, the biological consequences of these...
ORGANISATION:
SARDI Food Safety and Innovation
SPECIES
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
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