Development of mass production hatchery technology for the redclaw crayfish, Cherax quadricarinatus

Jones, Clive M., and Valverde, Colin (2020) Development of mass production hatchery technology for the redclaw crayfish, Cherax quadricarinatus. Freshwater Crayfish, 25 (1). pp. 1-6.

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Abstract

Aquaculture production of redclaw, Cherax quadricarinatus (von Martens), in Australia has never reached the high level projections made in the 1990’s (Jones and Ruscoe 1996). This can be attributed to a range of factors, but the most significant is the supply of seedstock. Although redclaw is advantaged by its uncomplicated reproductive biology with no free-living larval stages, reliance on natural reproduction to generate juveniles for growout purposes is inefficient. An alternative approach involves the artificial incubation of fertilized eggs to improve both quality and quantity of juveniles produced. Suitable technology for such incubation was developed in Europe to support the on-going efforts to produce crayfish plague free juveniles for restocking to natural water bodies. This technology has now been adapted to suit redclaw and for the purpose of mass production of seed crayfish for aquaculture. This paper details the development of the AquaVerde hatchery system, and the challenges to see it develop into fully commercial production, that could support expansion of the redclaw farming industry, both in Australia and elsewhere in the world.

Item ID: 62995
Item Type: Article (Research - C1)
ISSN: 2076-4332
Keywords: crayfish; aquaculture; redclaw; Cherax quadricarinatus; juvenile
Copyright Information: Copyright © 2020 by The Author(s). Published by the International Association of Astacology.This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Date Deposited: 28 Jul 2020 23:24
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 100%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830101 Aquaculture Crustaceans (excl. Rock Lobster and Prawns) @ 100%
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