Author(s): Bahar Kösem and Mehmet OÄŸuz Öztürk

Abstract: In this study, Gyrodactylus parasite fauna of 49 Cobitis simplicispinna from Çıldırım water source, Turkey were investigated. 267 parasite specimens belonging to the Gyrodactylus cobitis were found on the fins and gills of Cobitis simplicispinna. General infection prevalence value of the parasite was recorded as 58.0% and the mean intensity value was recorded as 9.2 ± 10.1. Microhabitat distribution of the parasite species is as follows. While the values of the average parasite intensity on gills and fins were close to each other, the frequency of infection and the maximum number of parasites on fins were found to be much higher than on gills of the host fishes. On the other hand, ectoparasitic fauna of Cobitis simplicispinna from the study area, which has not been subjected to any parasitological researches, was examined and one parasitic species determined. Thus, a new locality was added to the global geographical spread of the mentioned parasite species in direction of the present study.

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