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African Journal of Aquatic Science Volume 27, 2002 - Issue 2
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Original Articles

Potential impacts of alien freshwater crayfish in South Africa

I de Moor South African Institute of Aquatic Biodiversity, Private Bag 1015, Grahamstown, 6140, South Africa(formerly the JLB Smith Institute of Ichthyology)
Pages 125-139 | Received 17 Jan 2002, Accepted 03 May 2002, Published online: 28 Jun 2010
 
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Abstract

The habitat preferences and life history characteristics of four alien species of freshwater crayfish (Cherax tenuimanus, C. destructor, C. quadricarinatus and Procambarus clarkii) are reviewed. The potential impact of these species on South African freshwater ecosystems is assessed and the desirability of allowing their importation evaluated. On the basis of principles espoused in the European Inland Fisheries Advisory Council's Code of Practice on Aquatic Introductions, it is recommended that importation permits should not be granted for any of these species.

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