15 results
Environment
PROJECT NUMBER • 1997-111
PROJECT STATUS:
COMPLETED

Catch-at-age, age at first spawning, historical changes in growth, and natural mortality of SBT: an integrated study of key uncertainties in population biology and dynamics of SBT, based on direct estimates of age from otoliths

The CCSBT has recognized for a number of years that a better understanding of the population biology and demographics of southern bluefin tuna (SBT) is necessary for improved population modeling and stock assessments. In 1996, the CCSBT Scientific Committee identified three areas where our...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Tagging
SPECIES
Southern Bluefin Tuna
Environment
Environment
Environment
PROJECT NUMBER • 2003-002
PROJECT STATUS:
COMPLETED

Spatial interactions among juvenile southern bluefin tuna at the global scale: a large scale archival tag experiment

Results have increased our confidence in the recruitment index based on the aerial survey in the Great Australian Bight (GAB) by confirming that the timing and duration are ideal, that the majority of juvenile SBT are likely to return to the GAB each summer, and that based on current evidence it is...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Wild Catch
SPECIES
Southern Bluefin Tuna
Environment
Environment
PROJECT NUMBER • 2016-044
PROJECT STATUS:
COMPLETED

Next-generation Close-kin Mark Recapture: using SNPs to identify half-sibling pairs in Southern Bluefin Tuna and estimate abundance, mortality and selectivity

This report presents the results of the first application of Close-Kin Mark-Recapture (CKMR) using both Parent-Offspring Pairs (POP) and Half-sibling Pairs (HSP). This application to Southern Bluefin Tuna (SBT) has been successful, providing a decadal time series of absolute abundance, total...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Stock Assessment
SPECIES
Southern Bluefin Tuna
Environment
Industry
Environment
Environment
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