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  1. Macro-invertebrate predators of freshwater pulmonate snails in Africa, with particular reference to <em>Appasus grassei</em> (Heteroptera) and <em>Procambarus clarkii</em> (Decapoda)

    Macro-invertebrate predators of freshwater pulmonate snails in Africa, with particular reference to Appasus grassei (Heteroptera) and Procambarus clarkii (Decapoda)

    Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CC Appleton BV Hofkin A Baijnath
    A range of African and alien macro-invertebrates has been reported preying on freshwater pulmonate snails, including those that serve as intermediate hosts for bloodflukes of the genus Schistosoma. Predation by five molluscivorous taxa is reviewed here: indigenous leeches (Glossiphoniidae), marsh...
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  2. Potential impacts of alien freshwater crayfish in South Africa

    Potential impacts of alien freshwater crayfish in South Africa

    Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I de Moor --- , South Africa
    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...
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