25,561 results
Environment
PROJECT NUMBER • 1995-039
PROJECT STATUS:
COMPLETED

Interim monitoring of the 1995 eastern gemfish spawning run

Historically, monitoring of the eastern gemfish stock has been based on sampling at NSW fish markets, and carried out by NSW Fisheries Research Institute as part of its NSWs management responsibilities for the fishery. With the advent of AFMA, however, responsibility for monitoring of the fishery...
ORGANISATION:
CSIRO Oceans and Atmosphere Cleveland
Environment
Environment
PROJECT NUMBER • 1995-035
PROJECT STATUS:
COMPLETED

Development of the egg production method to assess the blue grenadier stock in the South East Fishery

The blue grenadier stock is potentially the largest fish stock in the SEF, and following the decline in quota of orange roughy, the need to assess its potential became urgent. The stock has been surveyed using traditional trawl methods and acoustics, but both methods provide only 'snapshot'...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
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 • 1995-032
PROJECT STATUS:
COMPLETED

Age Composition of orange roughly in the eastern and southern management zones

Orange roughy is an important species in the South East Fishery (SEF). The main areas in the SEF where orange roughy fishing has occurred are a major spawning aggregation off the east coast of Tasmania (the Eastern Management Zone) during winter and on non-spawning summer aggregations of the...
ORGANISATION:
Agriculture Victoria
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
Environment
PROJECT NUMBER • 1995-025
PROJECT STATUS:
COMPLETED

Biological and ecological research needed for the effective management of the bar-cheeked coral trout and the chinaman cod, including an investigation into the factors controlling sex-change in the serranids (cods, groupers and coral trout).

This study provides detailed biological and ecological information on the chinaman cod, Epinephelus rivulatus, and biological information on the bar-cheeked coral trout, Plectropomus maculatus, in West Australian waters. Both of these species are members of a large group of predatory fish known as...
ORGANISATION:
University of Western Australia (UWA)
Environment
PROJECT NUMBER • 1995-022
PROJECT STATUS:
COMPLETED

Population dynamics and management of spanner crabs in southern Queensland

Spanner crabs (Ranina ranina) represent a valuable resource to southern Queensland and northern NSW. The fishery became established in the late 1970s, and as a result of an almost exponential increase in fishing effort between 1992 and 1995 an output-controlled limited entry management arrangement...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
Environment
PROJECT NUMBER • 1995-020
PROJECT STATUS:
COMPLETED

Mortality, growth and movements of the western rock lobster, Panulirus cygnus

The very high levels of exploitation in the western rock lobster fishery have resulted in the introduction of regional or zone-specific management arrangements in recent years. This is a permanent departure from an holistic approach to the fishery’s regulation. A detailed knowledge of...
ORGANISATION:
Department of Primary Industries and Regional Development (DPIRD) WA
Environment
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