The three experiments conducted to spawn and grow C. Gigas were only partly successful, with total mortality of larvae occuring in 14 days: spawning and larvae growth to this period being successful on each occasion. Further experiments in an attempt to determine the reason for failure using the...
At the Fish Handling and Quality Control Workshop in Victoria, eight speakers delivered 40 minute presentations each, broken into 15 to 20 minute papers followed by discussions with workshop attendants.
This final report contains two of the papers presented, "Handling and Processing of Freshwater...
ORGANISATION:
Department of Agriculture, Fisheries and Forestry (DAFF)
The prawn fishing industry in the Gulf of Carpentaria is worth $100 million/year and a large proportion of this is from catches of banana prawns. In one stage of their complex life history, banana prawn larvae are carried by ocean currents from their spawning grounds to the estuarine nursery...
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...
The objective of this report was to measure trawling gear with the Trawl Instrumentation System (TIS).
The method was similar to that described in Cruise Report no. 76. Each net and door combination was towed at various log speeds, and was maintained at each log speed for about 20 minutes while...
This report deals with the operation of the twin sounder installation, referred to in earlier project reports, during 1979. For the period 1978/79 a grant of $2,750 was recommended for building and testing the prototype device. In order to meet construction deadlines on the vessel "Territory Chief"...