Production of juvenile redclaw crayfish, Cherax quadricarinatus (von Martens)(Decapoda, Parastacidae) III. managed pond production trials

Jones, Clive M. (1995) Production of juvenile redclaw crayfish, Cherax quadricarinatus (von Martens)(Decapoda, Parastacidae) III. managed pond production trials. Aquaculture, 138 (1-4). pp. 247-255.

[img] PDF (Published Version) - Published Version
Restricted to Repository staff only

View at Publisher Website: http://dx.doi.org/10.1016/0044-8486(95)0...
 
17
1


Abstract

Commercial-scale production of juvenile redclaw crayfish was conducted in earthen ponds. Based upon the results of previous experimental studies in tanks and aquaria, earthen ponds (1300 and 2600 m²) were furnished with juvenile crayfish shelters, and were prepared and managed to maximise availability of zooplankton. Juvenile redclaw were introduced by stocking ponds with egg-bearing females. Stocking density, as expressed by number of fertile eggs introduced, ranged from 74 to 326/ m². Ponds were harvested after culture periods ranging from 45 to 62 days. Juvenile number at harvest ranged from around 6000 to over 36 000, representing a mean of 63.2 juveniles per maternal survivor. Mean size at harvest ranged from 0.31 to 1.00 g, representing growth of 9.7 to 36.9 mg/day. Results suggest that managed pond production of juvenile redclaw is commercially viable at the production rates achieved, and that a considerable increase in productivity is possible with increased availability of shelter and improved zooplankton management techniques.

Item ID: 28388
Item Type: Article (Research - C1)
ISSN: 1873-5622
Keywords: crayfish, cherax, habitat, hatchery, industry, juvenile, nutrition, pond production, redclaw, archive
Date Deposited: 09 Sep 2013 03:56
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%
Downloads: Total: 1
More Statistics

Actions (Repository Staff Only)

Item Control Page Item Control Page