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Environment
Environment
Environment
Environment
Environment
Environment
Environment
PROJECT NUMBER • 1990-009
PROJECT STATUS:
COMPLETED

Development and use of the egg production method to assess the biomass of orange roughy off eastern Tas

Orange roughy is one of Australia's most valuable finfish However, its aggregating behaviour during spawning, slow growth, and longevity render it vulnerable to over-exploitation. Some stocks in New Zealand are at extremely low levels after only ten years of exploitation. Good management is vital...
ORGANISATION:
CSIRO Oceans and Atmosphere Cleveland
Environment
PROJECT NUMBER • 1990-007
PROJECT STATUS:
COMPLETED

Assessment of spatial and temporal variation in puerulus settlement of the southern rock lobster

The overall goal of the present project was to establish a long term puerulus settlement monitoring program for the southern rock lobster (Jasus edwardsii) in Tasmania. Exploratory sampling was conducted throughout much of the Tasmanian coastline to determine key sites suitable for long term...
ORGANISATION:
Department of Natural Resources and Environment Tasmania (NRE TAS)
Environment
PROJECT NUMBER • 1990-006
PROJECT STATUS:
COMPLETED

Behavioural and physiological studies on phyllosoma larvae of the Western Rock Lobster

The Western Rock Lobster (Panulirus cygnus George) is the most valuable single species fishery in Australia with an annual value in excess of $250 000 000. Consequently, there has been a substantial research effort geared towards gaining a better understanding of the basic biology of this species...
ORGANISATION:
University of Western Australia (UWA)
Industry
PROJECT NUMBER • 1990-005
PROJECT STATUS:
COMPLETED

Development of non-damaging trapping apparatus for the spanner crab (Ranona ranina) fishery

Both male and female spanner crabs (Ranina ranina) readily moved up inclined ramps made from numerous materials and there were no significant size related behavioral differences. This suggested that Ranina ranina could be trapped in "entrance type" non­-entangling apparatus. A range of top and side...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
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