Parasitological survey of some important fish species of Lake Balaton

Molnár, Kálmán and Székely, Csaba (1995) Parasitological survey of some important fish species of Lake Balaton. Parasitologia Hungarica, 28. pp. 63-82. ISSN 0303-688X

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Abstract

In the framework of a one-year survey, the parasitic infections of 299 specimens of the 15 economically and faunistically most important fish species of Lake Balaton were monitored. Seventy-one parasites species were identified to the species and 17 to the genus, and the data obtained on the parasites are reported. In Lake Balaton, the introduced eel parasite Anguillicola crassus can be considered the most prevalent parasite species. Besides the definitive host, it could be detected in several fish species acting as paratenic hosts. Occasionally a rather intensive Ergasilus sieboldi infection occured on the pike-perch: both the gills and the operculum of the fish were covered by large masses of these crustaceans. Ichthyocotylurus metacercariae adhering to the pericardium of the pike-perch and the specimens of Tracheliastes maculatus colonising the body surface of the bream in the spring months seem to have pathological significance. Of the parasites found, Hoferellus carassii, Spironucleus elegans, Paradilepis scolecina and Orientocreadium siluri are now reported from Lake Balaton for the first time.

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