This final report on the project describes data on stomach contents of major fish predators of the euphausiid Nyctiphanes australis.
The study has concluded that: size and stock of krill and its production can be calculated with some degree of confidence; major predators of adult krill can be...
A wide variety of off-flavour problems associated with crustaceans have in the past been termed "iodoform-like". Work carried out in this Laboratory showed that the existing off-flavour problems were complex and that the term "iodoform" could only be applied to a proportion of off-flavoured...
Following the successes achieved from the 77/78 F.I.R.T.A. project "Design and development of a new purse seining method and equipment" a further grant of $27,580 was allocated from F.I.R.T.A. to introduce the technique into the pelagic fisheries. As the Mackerel fishery is still in need of...
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"...
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...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
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...
ORGANISATION:
Department of Primary Industries and Regional Development (NSW)
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...
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 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...