An analysis of the metazoan parasitocoenoses of brown trout Salmo trutta from British Lakes

摘要: The composition of the parasite fauna brown trout Salmo trutta in nine British lakes from varying geographical locations has been analysed with regard to several selected physico-chemical parameters lakes. Significant correlations existed between size lake and number species harboured by altitude present. No significant relationships were found position, age, degree isolation or CaCO, levels Similarly no proportions parasites different life cycles examined, presence absence a particular lake's limno-logical features. It is concluded that have been, still are, capable rapid widespread dissemination throughout mainland Britain, their occurrence any result combination local factors. predictive value conclusions tested discussed special reference reservoirs.