Investigations into intensive culture of the Australian red claw crayfish Cherax quadricarinatus
Published Online: 6/1/2020
Abstract
A series of investigations were carried out on the Australian red daw crayfish, Cherax quacJricarinatus, to examine the suitability of this species for intensive culture. Dominance cannibalism was found to play an important role in survival and growth during communal trials with juveniles. High levels of mortality (40-95%) were recorded in trials with minimal refuge provision, using red claw (1-4 months of age) at initial stocking densities of 100, 200, 300 or 400 animals m-2. There was no significant relationship between stocking density and survival. Mortality in the same group was reduced to 5% by retaining individuals in separate compartments and to 33% by more adequate refuge provision. Red claw grown to maturity reproduced a number of times under artificial conditions. Growth rates of juveniles maintained in bare tanks are given and compare well with growth rates achieved by other tropical crustacean species maintained under similar conditions.
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Du Boulay AJH, Sayer MJD and Holdich DM. (1993). Investigations into intensive culture of the Australian red claw crayfish Cherax quadricarinatus. Freshwater Crayfish 9(1):70-78. doi: 10.5869/fc.1993.v9.070
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