7 results

Direct otolithic ageing of southern bluefin tuna, Thunnus maccoyii (Castlenau), exploited by the Australian fishery

Project number: 1984-071
Project Status:
Completed
Budget expenditure: $0.00
Organisation: CSIRO Oceans and Atmosphere Cleveland
Project start/end date: 28 Dec 1986 - 31 Dec 1986
:
TAGS
Ageing

Objectives

1. Validate CSIRO-developed otolithic ageing techniques.
2. Determine timing & periodicity of otolith check formation, hence growth season at different ages & geographical areas.
3. Method to partition into age classes independent of modal analysis & that derived from growth curves ex tag data

Final report

Final Report • 493.33 KB
1984-071-DLD.pdf
Environment
PROJECT NUMBER • 1987-015
PROJECT STATUS:
COMPLETED

Determination of the migration patterns of juvenile southern bluefin tuna and jackass morwong

This project reports on: 1) our detailed evaluation of current methodologies for otolith chemical analysis, and our recommended procedures when electron probe microanalysis is used for stock delineation in finfish 2) our assessment of the accuracy and precision of otolith probe microanalysis...
ORGANISATION:
CSIRO Oceans and Atmosphere Cleveland
TAGS
Stock Assessment

Tagging of southern blue fin tuna off the coast of Australia

Project number: 1982-011
Project Status:
Completed
Budget expenditure: $0.00
Organisation: CSIRO Oceans and Atmosphere Cleveland
Project start/end date: 27 Jun 1985 - 29 Jun 1985
:
TAGS
Population Dynamics
Mortality
Modelling
Migration
Biomass

Objectives

1. Evaluate yield-per-recruit with various harvesting. Update mortality information. Estimate abundance local exploited sub-populations.
2. Quantify information on age-specific migration patterns for simulation model. Technique for ageing SBT.
3. Structure & integrity of schools
exchange of fish among schools

Investigation of the biology of tiger prawns in the western Gulf of Carpentaria

Project number: 1982-013
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Shirley Jeffrey
Organisation: CSIRO Oceans and Atmosphere Cleveland
Project start/end date: 28 Dec 1986 - 31 Dec 1986
:
TAGS
Reproduction
Population Dynamics
Habitat
Ageing

Objectives

1. Detailed study of the 2 commercial tiger prawn species (Penaeus esculentus and P. semisculcatus) in Groote Eylandt region of northern prawn fishery:
2. population dynamics
spawning times & places
delimit nursery areas contribute to commercial stocks
recruitment

Final report

Final Report • 4.83 MB
1982-013-DLD.pdf
Environment
PROJECT NUMBER • 1983-049
PROJECT STATUS:
COMPLETED

Northern pelagic fish stock research

In 1982, CSIRO applied to the Fishing Industry Research Trust Account for funding of a joint biological investigation of northern Australian pelagic fish stocks. At that time these stocks supported a Taiwanese surface gill-net fishery based on sharks, tunas and Spanish mackerel. During the 1970's...
ORGANISATION:
CSIRO Oceans and Atmosphere Cleveland
TAGS
Tagging
Environment
Environment
PROJECT NUMBER • 1986-087
PROJECT STATUS:
COMPLETED

Northern shark tagging study

In 1982, CSIRO applied to the Fishing Industry Research Trust Account for funding of a joint biological investigation of northern Australian pelagic fish stocks. At that time these stocks supported a Taiwanese surface gill-net fishery based on sharks, tunas and Spanish mackerel. During the 1970's...
ORGANISATION:
CSIRO Oceans and Atmosphere Cleveland
TAGS
Tagging
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