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Freshwater Crayfish 21(1): 199-204 (2015)

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Growth and survival of Cherax destructor and Bidyanus bidyanus stocked in a communal aquarium system

Duffy RE, Godwin I, Purvis I and Nolan J  e-mail link

Published Online: 12/31/2015

Abstract

Polycultural aquaculture typically utilises a mix of low trophic level species to increase yield above that which can be obtained from a single species. Low trophic level species are not widely accepted for consumption within Australia, so this study focussed on two species that have market acceptance, the yabby (Cherax destructor) and the silver perch (Bidyanus bidyanus,/i>). Laboratory scale trials examined the effect of each species on the growth and survival of the other species as well as the role of shelter for crayfish in this system over a 13.5 week period. Neither species negatively impacted the growth of the other, however, survival was negatively impacted. Shelter enhanced crayfish survival, although fish survival was impacted in those treatments. A higher total biomass was harvested from polyculture treatments than monoculture treatments. The positive results warrant further investigation at the scale of mesocosm, prior to large-scale pond trials.

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How to Cite

Duffy RE, Godwin I, Purvis I and Nolan J. (2015). Growth and survival of Cherax destructor and Bidyanus bidyanus stocked in a communal aquarium system. Freshwater Crayfish 21(1):199-204. doi: 10.5869/fc.2015.v21-1.199

 

 

Author Information

Rodney e. Duffy,* Freshwater Ecosystems, Western Australia Department of Fisheries, Western Australian Fisheries and Marine Research Laboratories, 39 Northside Drive,Hillarys, Western Australia, Australia6025. E-mail: rodney.duffy@fish.wa.gov.au

Ian  Godwin, School of Rural Science, University of New England, School of Rural Science, University of New England, Armidale, NSW, Australia2351. E-mail: igodwin@une.edu.au

Ian  Purvis, CSIRO Livestock Industries, CSIRO, CSIRO Livestock Industries, FD Mc Masters Laboratory, Chiswick,Armidale, NSW, Australia2350. E-mail: Ian.Purvis@csiro.au

John  Nolan, School of Rural Science, University of New England, School of Rural Science, University of New England, Armidale, NSW, Australia2351. E-mail: jnolan@une.edu.au

Corresponding Author indicated by an *.

 

Publication History

   Manuscript Submitted: 10/26/2014

   Manuscript Accepted: 5/20/2015

   Published Online: 12/31/2015

   Published in Print: 12/31/2015

 

 

Funding Information

No specific funding statement is available for this article.

 

 



 

 

 

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