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An analysis of the metazoan parasitocoenoses of brown trout Salmo trutta from British Lakes
Author(s) -
Kennedy C. R.
Publication year - 1978
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1978.tb03433.x
Subject(s) - salmo , brown trout , fauna , biology , trout , parasite hosting , ecology , abundance (ecology) , fishery , zoology , fish <actinopterygii> , world wide web , computer science
The composition of the parasite fauna of brown trout Salmo trutta in nine British lakes from varying geographical locations has been analysed with regard to several selected physico‐chemical parameters of the lakes. Significant correlations existed between the size of the lake and the number of parasite species harboured by trout and between the altitude of the lake and the number of parasite species present. No significant relationships were found between the number of parasite species and the geographical position, age, degree of isolation or CaCO, levels of the lakes. Similarly no relationships existed between the proportions of the parasites with different life cycles and the parameters examined, or between the presence or absence of a particular species of parasite and the lake's limno‐logical features. It is concluded that the parasites of brown trout have been, and still are, capable of rapid and widespread dissemination throughout mainland Britain, and their occurrence in any lake is a result of the combination of a number of local factors. The predictive value of the conclusions is tested and discussed with special reference to the parasite fauna of trout in reservoirs.