49 results
Environment
Environment
Environment
Environment
PROJECT NUMBER • 2014-024
PROJECT STATUS:
COMPLETED

Estimating the abundance of School Shark in Australia using close kin genetic methods

Close kin mark recapture (CKMR) provides an estimate of absolute abundance that is independent of fishing behaviour. We present a first CKMR estimate of abundance for School Shark and discuss the management implications of our findings. We found 65 half sibling pairs (HSPs), 3...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Stock Assessment
SPECIES
School Shark
Environment
Environment
Environment
PROJECT NUMBER • 2003-044
PROJECT STATUS:
COMPLETED

Development of a sustainable industry-based observation system for blue grenadier at the primary spawning sites

Blue grenadier has the highest current TAC among SEF species and has two separate fisheries that target primarily either sub-adult fish year-round or mature adults in winter spawning aggregations. The sustainability of the fishery would be greatly enhanced with regular (sustained) monitoring of...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Survey
SPECIES
Blue Grenadier
Environment
PROJECT NUMBER • 1995-014
PROJECT STATUS:
COMPLETED

Indices of recruitment and effective spawning for tiger prawns stocks in the Northern Prawn Fishery

In the mid to late 1980s NORMAC began to suspect that tiger prawn spawning stocks in the NPF may have been reduced by fishing to levels that reduced recruitment to the fishery. A vessel buy-back scheme and other effort reductions were introduced to reverse this trend but, by the mid-1990s, the...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Stock Assessment
Environment
PROJECT NUMBER • 1997-105
PROJECT STATUS:
COMPLETED

Growth, mortality, movements and nursery habitats of red-legged banana prawns (Penaeus indicus) in the Joseph Bonaparte Gulf

This project has contributed to the ecologically sustainable management of the Northern Prawn Fishery (NPF) by providing information on the status of red-legged banana prawn stocks and the nursery habitats that support this fishery. It has achieved these outcomes by firstly completing detailed...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Tagging
SPECIES
Banana Prawns
Environment
PROJECT NUMBER • 1995-031
PROJECT STATUS:
COMPLETED

Development of acoustic methods to survey orange roughy in the eastern and southern zones

Three acoustic surveys were carried out between 17 and 20 July 1996 on the orange roughy spawning ground off St. Helens, Tasmania. A combination of 22 demersal trawls and ensonification with three frequencies (12, 38 and 120 kHz) was used to assess the species composition around the spawning hill....
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
TAGS
Survey
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