31 results

A data management and reporting system and temporal and spatial analysis of historical catch records in the SA abalone fishery

Project number: 1994-167
Project Status:
Completed
Budget expenditure: $136,752.00
Principal Investigator: John Keesing
Organisation: SARDI Food Safety and Innovation
Project start/end date: 28 Jun 1995 - 29 Jun 2003
Contact:
FRDC

Objectives

1. To develop a data managment and reporting system as detailed in B4 Objectives of the Project Application forming part of this Agreement
2. Produce a historical analysis of catch and effort data as detailed in B4 Objectives of the Project Application forming part of this Agreement

Final report

Author: John Keesing
Final Report • 2003-05-05 • 3.38 MB
1994-167-DLD.pdf

Summary

Abalone stocks exist as a large number of metapopulations or sub-stocks each with peculiar growth and mortality characteristics. Hence different populations respond differently to exploitation through fishing. The sustainability of this fishery is linked to effective management of these meta-populations. For this reason, abalone catch and effort data should be collected on as fine a spatial scale as possible.

South Australia's catch and effort data is collected on the finest spatial scale of any abalone fishery in Australia. However, to date, analysis of the fine scale components of the data has been superficial simply as a result of the lack of tools to rapidly summarize and present data visually. Spatial and temporal analyses of these data will assist in the assessment of how individual sub-stocks have responded to fishing.

Across South Australia there are 35 abalone fishers fishing 7 different Total Allowable Catches (TAC's) on two species across 196 reporting areas. While the complexity of the data has to date precluded comprehensive analysis it also offers the potential for powerful insights into the dynamics of the fishery after more than 10 years of quota management.

In all fisheries, levels of catch and catch rates are two indicators used to attempt to evaluate and assess the response of stocks to exploitation through fishing. Declines in catches or catch rates are often interpreted as indicators of recruitment or growth overfishing and similarly increases in catches and catch rates may be interpreted as providing evidence that stocks are being sustained in the face of fishing or may even be under-exploited. 

Industry
PROJECT NUMBER • 2013-746
PROJECT STATUS:
COMPLETED

Seafood CRC: optimising the size and quality of sardines through real-time harvest monitoring

In order to improve the commercial profitability and sustainability of the South Australian Sardine Fishery (SASF) there was a need to establish improved monitoring and harvest management practices based on an understanding of Sardine habitat preferences. In this project, the South Australian...
ORGANISATION:
SARDI Food Safety and Innovation
SPECIES
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PROJECT NUMBER • 2009-728
PROJECT STATUS:
COMPLETED

Seafood CRC: sustainable feeds and feed management for Yellowtail Kingfish

Yeilowtail Kingfish, Seriola lalandi, is the main closed cycle flnfish cultured in South Australia (SA) and this industry has great potential to expand in other states of Australia. One of the major inefficiencies identified by industry was feeds and feed management in Yellowtail Kingfish...
ORGANISATION:
SARDI Food Safety and Innovation
Industry
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PROJECT NUMBER • 1993-050
PROJECT STATUS:
COMPLETED

Leeuwin environment index - pelagic recruitment strength relationship

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ORGANISATION:
SARDI Food Safety and Innovation
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