10 results
Environment
Environment
PROJECT NUMBER • 1995-034
PROJECT STATUS:
COMPLETED

Age and growth of jack mackerel, and the age structure of the jack mackerel purse seine catch

Jack mackerel (Trachurus declivis) is a pelagic species that is found in waters off southern Australia and New Zealand. It is the subject of a major fishery, predominantly off Tasmania, with annual landings in the range of 9,000 - 42,000 tonnes. The fishery commenced in the mid 1980s and uses purse...
ORGANISATION:
University of Tasmania (UTAS)
Environment
PROJECT NUMBER • 1994-021
PROJECT STATUS:
COMPLETED

Radiometric aging of sharks

Determining the age of sharks is difficult. A reliable independent method of validating age estimates is needed, apart from relying on tag return data. The success of radiometric analysis for bony fish overseas and in Australia suggested that it would be worth trying the method on sharks. Four...
ORGANISATION:
University of Tasmania (UTAS)
Environment
PROJECT NUMBER • 2012-008
PROJECT STATUS:
COMPLETED

Assessing the impact of marine seismic surveys on southeast Australian scallop and lobster fisheries

The present study, undertaken by University of Tasmania’s Institute for Marine and Antarctic Studies in conjunction with Curtin University’s Centre for Marine Science and Technology, was developed to investigate the potential impact of seismic surveys on economically important fishery...
ORGANISATION:
University of Tasmania (UTAS)
Blank
PROJECT NUMBER • 2009-746
PROJECT STATUS:
COMPLETED

SCRC: Could harvests from abalone stocks be increased through better management of the size limit / quota interaction?

The aims of this project were to: Quantify density-dependent effects on wild abalone growth and meat quality Develop a statistical tool for classification of shell age Use length-based models to test the adequacy of shell age performance measures Use length-based models to determine...
ORGANISATION:
University of Tasmania (UTAS)

Age determination of oreo dory species by radiometric analysis

Project number: 1992-041
Project Status:
Completed
Budget expenditure: $92,562.50
Principal Investigator: Gwen E. Fenton
Organisation: University of Tasmania (UTAS)
Project start/end date: 26 Sep 1992 - 29 Apr 1997
Contact:
FRDC

Objectives

1. To determine the age of spiky dory Noecyttus rhomboidalis smooth dory Pseudocyttus maculatus and black dory Allocyttus spp. by radionuclide analysis.
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