101 results
Industry
Environment
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
Stock Assessment
Population Dynamics
Physiology
Mortality
SPECIES
Southern Bluefin Tuna
Environment
PROJECT NUMBER • 1998-205
PROJECT STATUS:
COMPLETED

Construction and evaluation of an underwater setting device to prevent accidental capture of seabirds on tuna longliners

Longline fishing is one of the world's major methods of catching fish (Lokkeborg 1999). Some seabirds, particularly albatrosses and petrels have learnt to take bait from longlines while the lines are being set and when doing so put themselves at risk. If they either swallow the hook or become...
ORGANISATION:
Parks and Wildlife Service Tasmania
TAGS
Mortality
Fishing Gear
Bycatch
SPECIES
Southern Bluefin Tuna
Environment
Industry
Environment
Industry
Environment
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