10 results
Environment
PROJECT NUMBER • 1994-029
PROJECT STATUS:
COMPLETED

A collaborative investigation on the usage and stock assessment of bait fishes in southern and eastern Australian waters, with special reference to pilchards (Sardinops sagax neopilchardus)

This project was initiated in response to a rapid increase in the demand for pilchards and other baitfish species and the subsequent expansion of purse-seine fisheries throughout southeastern Australia. During the course of the proj ect, the need for research on pilchard stocks was further increased...
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 • 1986-061
PROJECT STATUS:
COMPLETED

Settlement and recruitment of greenlip abalone: their use in predicting stock abundance

The purpose of the grant was to develop a method of measuring density of settlement of the abalone Haliotis laeviqata in relation to spawning stock size and the subsequent catch in the fishery. It was hoped that settlement strength, if it was controlled by oceanographic conditions, would be a useful...
ORGANISATION:
SARDI Food Safety and Innovation
People
PROJECT NUMBER • 2016-103
PROJECT STATUS:
COMPLETED

Visiting scientist: Kostas Ganias - expert on fish reproductive biology related to egg production methods

The Daily Egg Production Method is used to estimate the spawning biomass of several Australian fisheries for pelagic species, including the South Australian Sardine Fishery and Commonwealth Small Pelagic Fishery. Dr Kostas Ganias of Aristotle University of Thessaloniki is a world leader in the...
ORGANISATION:
SARDI Food Safety and Innovation
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