30 results
Industry
PROJECT NUMBER • 2011-761
PROJECT STATUS:
COMPLETED

Seafood CRC: optimisation of viral clearance from broodstock prawns using targeted RNA interference

Economic losses due to diseases mostly caused by viruses remain a major obstacle to realizing the production potential of prawn aquaculture industries in many parts of the world. Broodstock used in prawn hatcheries in Australia are generally managed quite intensively and numbers used are generally...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
PROJECT NUMBER • 2018-017
PROJECT STATUS:
COMPLETED

Demand Conditions and Dynamics in the Southern and Eastern Scalefish and Shark Fishery: Empirical Investigation

This final report, a collaboration between economists from CSIRO, CQU and ABARES, is the first detailed analysis of the interrelationship between fish prices on the Sydney and Melbourne fish markets. In addition, the study derived empirical estimates of the own and cross-price flexibilities for the...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Environment
PROJECT NUMBER • 2011-045
PROJECT STATUS:
COMPLETED

Tactical Research Fund: Shark futures - a synthesis of available data on Mako and Porbeagle sharks in Australasian waters - current status and future directions

This project summarises the available information on the population biology of the shortfin mako, longfin mako and porbeagle sharks in Australasian waters and other parts of the world based on a workshop held at CSIRO Marine Laboratories, Hobart, Tasmania and via reviews of published literature. The...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart

SCRC: Optimising External Colour in Farmed Crustaceans, using Penaeus monodon as a model species.

Project number: 2011-731
Project Status:
Completed
Budget expenditure: $0.00
Principal Investigator: Nick Wade
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 31 Oct 2011 - 30 Oct 2013
Contact:
FRDC

Need

Consistency of colour as well as overall colour intensity are essential elements to seafood product acceptability, marketability and dollar value. This is particularly true for the deep red colour of cooked crustaceans. Farmed crustacean species commonly have suboptimal colour consistency and/or colour intensity. There is an industry driven need to therefore optimise colour consistency and intensity of farmed crustacean product.

Farmed crustacean colour is enhanced by a critical but costly feed additive, the carotenoid astaxanthin. The increased outlay in production is offset by gains in market value of between $2 to 5 / kg, in the case of prawns. To achieve consistent premium colour grade scores, our most recent research in penaeid prawns and hard-shelled lobsters showed that the cooked colour of the animal is not related solely to the total carotenoid content of the animal, but it is essential for the carotenoid to be bound with high levels of a colour protein called crustacyanin (CRCN).

To expand our scientific knowledge in this area, future research needs to extend beyond carotenoid inclusion levels in diets, and begin to explore natural variation in abundance of this novel colour protein complex or simple methods that can increase the protein abundance and enhance colour. This baseline information will support the development of commercial procedures that maximise crustacean colour consistency and intensity, allowing farmers to maximise product quality, price, marketability and acceptability.

Final report

Author: Dr Nick Wade and Dr Brett Glencross
Final Report • 2014-01-01 • 1.92 MB
2011-731-DLD.pdf

Summary

Consistent, deep red coloured cooked prawns are highly sought after in the Australian market and accordingly fetch premium market prices. Farmed crustacean species commonly have suboptimal colour consistency and/or colour intensity. There is an industry driven need to therefore optimise colour consistency and intensity of farmed crustacean product.

This project sought to define the amount of colour variation that exists in farmed prawns, as well as test a recently established method for manipulating prawn colour.

Industry
PROJECT NUMBER • 2000-206
PROJECT STATUS:
COMPLETED

Sustainable genetic improvement of Pacific oysters in Tasmania and South Australia

The Pacific oyster breeding project initiated in FRDC 97/321 was continued. Both mass selection and family selection procedures were employed. The main trait of interest was growth rate, although shell shape and condition index were also recorded. Families were monitored on five farms. Two were...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Environment
PROJECT NUMBER • 2016-056
PROJECT STATUS:
COMPLETED

What could Australia’s total sustainable wild fisheries production be?

This project was a first attempt at estimating the total potential maximum sustainable yield (MSY) from Australia’s commercial fisheries. The project considered only key commercial species and selected by-product species. Estimating equilibrium MSY where there was a formal stock...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
PROJECT NUMBER • 2015-202
PROJECT STATUS:
COMPLETED

Maximising net economic returns from a multispecies fishery

Achieving fishery MEY may result in a reduction in net economic returns in a broader sense if the loss to consumers exceeds the gain to the industry. Such a loss may occur if supplies to the local market are reduced and prices paid by consumers increase. This results in a transfer of benefits from...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
PROJECT NUMBER • 1996-302
PROJECT STATUS:
COMPLETED

Development of the aquaculture capability of the brown tiger prawn (Penaeus esculentus)

In order to provide for future growth of the Australian prawn aquaculture industry, there is a need to take a longer-term strategic view and develop production technology for alternative species that can support an export market but do not have the intense overseas competition of the current major...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
PROJECT NUMBER • 2000-212
PROJECT STATUS:
COMPLETED

Rock Lobster Enhancement and Aquaculture Subprogram: the nutrition of juvenile and adult lobsters to optimise survival, growth and condition

Research in FRDC RLEAS 98/303 established that tropical (Panulirus ornatus), southern (Jasus edwardsii) and western (Panulirus cygnus) rock lobsters readily consumed formulated pelleted dry feeds and exhibited a dose dependent growth response to dietary protein concentration. The derived optimum...
ORGANISATION:
CSIRO Oceans and Atmosphere Hobart
Industry
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