Estimates of
spawning biomass obtained using the Daily Egg Production Method (DEPM) are the
primary biological performance indicator for quota species in the Small Pelagic
Fishery (SPF).
The objective of
this study was to conduct ichthyoplankton and adult trawl surveys that underpin
the DEPM in the...
This thesis reports on an investigation of brood stock conditioning methods for the tropical sea cucumber Holothuria scabra. The project aims to advance the field of sea cucumber aquaculture by developing improved methods for the conditioning and spawning of brood stock.
There is great demand for...
The relatively high catch of invertebrate species in Western Australia compared to finfish is in sharp contrast to other regions of the world where finfish production usually dominates. This low level of finfish production is primarily due to the Leeuwin Current which brings warm, low nutrient...
During recent years, commercial trap fisheries have developed for the champagne and crystal crabs in deep waters off the lower west and south coasts of Western Australia. Thus, data on crucial aspects of the biology of these species were required to enable plans to be developed for conserving their...
This project was initiated in response to a rapid increase in the demand for pilchards and other baitfish species and the subsequent expansion of purse-seine fisheries throughout southeastern Australia. During the course of the proj ect, the need for research on pilchard stocks was further increased...
The fishery for king prawns which occurs between 18°S and 21°S has been investigated over a three year period. The fishery takes place predominantly during winter months. Availability of alternative target stocks as well as recruitment timing is responsible for the fishery's timing.
Annual...
ORGANISATION:
Department of Agriculture and Fisheries EcoScience Precinct
Most Australian abalone fisheries are fully exploited and a comparison of the total catch of blacklip abalone, Haliotis ruber, in the three south-eastern states indicates a decline in population size from south to north. The catch distribution from New South Wales parallels that trend. This decline...