14 results
Industry
PROJECT NUMBER • 1997-486
PROJECT STATUS:
COMPLETED

Do changes in aeration efficiency of "airwick" diffusers explain recent high mortalities during transport of live fish in bulk bins?

To provide an alternative to the use of oxygen cylinders in live transport bins, Seafood Transportation Developments (STD) initiated development of an aeration unit which could be fitted to the live bins. The system provides oxygen to the live fish by air diffusion at a high flow rate through an air...
ORGANISATION:
Department of Primary Industries (QLD)
Industry
Industry
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 Primary Industries (QLD)
Industry
PROJECT NUMBER • 1984-019
PROJECT STATUS:
COMPLETED

A comparison of the fishing characteristics and inefficiencies of different otterboard designs under field conditions

Unlike the majority of engineered equipment, the design of fishing gear is tested ultimately in its ability to take or capture live animals which are able to modify their escape responses. For this reason, increases in the efficiency of operation and optimization of hydrodynamic design are not...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
Industry
PROJECT NUMBER • 2009-774
PROJECT STATUS:
COMPLETED

Seafood CRC: harvest strategy evaluations and co-management for the Moreton Bay trawl fishery

The Moreton Bay otter trawl fishery is a multispecies fishery, with the majority of the catch composed of various species of prawns, squid and Moreton Bay Bugs. The project was an initiative of the MBSIA and developed from concerns over a number of issues. These included concern over declining...
ORGANISATION:
Department of Primary Industries (QLD)
Industry
PROJECT NUMBER • 2011-734
PROJECT STATUS:
COMPLETED

Seafood CRC: controlling biofouling of pond aerators on marine prawn farms

Biofouling of aeration equipment is a significant farm management issue and production cost for Australian marine prawn farms. Defouling aeration equipment has a high labour demand and once fouled, the energy efficiency of paddle-wheels and other aerating equipment can be markedly reduced, leading...
ORGANISATION:
Department of Primary Industries (QLD)
SPECIES
Industry
Industry
PROJECT NUMBER • 1994-070
PROJECT STATUS:
COMPLETED

Higher returns in prawn aquaculture: Pilot program to create production stocks that are all female

Female penaeid prawns grow faster and may have higher feed conversion efficiency than do males. If a technique could be devised to bias the sex ratio of larvae produced so that the proportion of females in each brood outnumbered the males, the commercial grower could achieve dramatically...
ORGANISATION:
Department of Primary Industries (QLD)
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