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Protozoans parasitic on Anguilla anguilla (L.) caught in 5 areas o the Szczecin Lagoon and the River Odra mouth were studied in 1982-1983. A total of 11 protozoan species were found: Ichthyophthirius multifliis, Trichophrya piscium, Trichodina jadranica, Trichodinella epizootica, Myxidium giardi, Spironucleus mobilis, Eimeria anguillae, Zschokkella stettinensis, Sphaerospora gilsoni, Trypanosoma granulosum,...
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