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Environment

Production technology for redclaw crayfish (Cherax quadricarinatus)

Project number: 1992-119
Project Status:
Completed
Budget expenditure: $230,278.00
Principal Investigator: Clive Jones
Organisation: Department of Primary Industries (QLD)
Project start/end date: 21 Nov 1992 - 30 Jun 1997
:

Objectives

1. To evaluate the biological characteristics of the recognised stocks of redclaw, determine thier genetic basis and assess their relative suitability to cultivation.
2. To investigate the nutrition of redclaw through studies of digestive physiology/morphology, natural food availability and comparative feeding trials.
3. To develop standard growout techniques in relation to pond preparation, stocking density and size, pond management and harvesting, and to prepare a practical manual for the industry.
4. To investigate the feasibility of polyculturing redclaw and silver perch

Final report

Author: C.M. Jones I.M. Ruscoe
Final Report • 1996-08-06 • 3.47 MB
1992-119-DLD.pdf

Summary

This research and development project aimed to define specific guidelines for the aquaculture production of redclaw crayfish, Cherax quadricarinatus. This aim was achieved, and a comprehensive list of such guidelines is now documented.

Redclaw crayfish aquaculture was a small industry when this project was initiated, generating less than 40 tonnes of product per year. Production technology was undefined and extremely variable across the industry. Now, in 1996, production has risen to around 100 tonnes and a more consistent and appropriate approach is applied to production. This is due to a large extent to the technologies developed by this project, the full benefits of which are still flowing to industry.

Armed with a ‘best practice’ approach, the redclaw aquaculture industry is poised for significant expansion, which will enable it to more fully exploit the excellent export opportunities which have been clearly identified for the product.

Environment
PROJECT NUMBER • 1999-205
PROJECT STATUS:
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The effect of barramundi Nodavirus on important freshwater fishes

This project has confirmed the knowledge that management of barramundi translocations outside their natural range requires fisheries authorities take into account the risk that barramundi nodavirus may lethally infect native freshwater fishes. The project has shown barramundi nodavirus can...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
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PROJECT NUMBER • 2003-033
PROJECT STATUS:
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Enhancement of saucer scallops (Amusium balloti) in Queensland and Western Australia - genetic considerations

The saucer scallop, Amusium balloti, is distributed along the Western and Eastern coast of Australia and supports a fishery in both Queensland and Western Australia. Two commercial companies are investing in sea-ranching operations in an attempt to stabilise and increase annual catches. These...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
PROJECT NUMBER • 1990-004
PROJECT STATUS:
COMPLETED

Pilot evaluation of methodology for assessment of the eastern king prawn fishery

The fishery for eastern king prawns is based on a major penaeid prawn resource shared between New South Wales and Queensland. Because the species is migratory and the resource shared between two states, the fishery offers some unique research and management challenges. The objectives of this...
ORGANISATION:
Department of Primary Industries (QLD)
Environment
Environment
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PROJECT NUMBER • 2003-046
PROJECT STATUS:
COMPLETED

Reducing uncertainty in the assessment of the Australian spanner crab fishery

Spanner crabs (Ranina ranina) represent a valuable single-species fishery in Queensland. Although a transparent and effective assessment process was developed some years ago for setting the commercial total allowable catch (TAC), additional information was needed to reduce some of the uncertainty in...
ORGANISATION:
Department of Primary Industries (QLD)
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