, Volume 50, Issue 1, pp 69-79

Trichodinid ectoparasites (Ciliophora: Peritrichida) of some marine fishes from coastal regions of the Yellow Sea and Bohai Sea

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Abstract

Five species of marine fishes, including two of the main maricultured fishes from coastal regions of the Yellow Sea and Bohai Sea, were examined for ectoparasitic trichodinids. A total of five species of trichodinids belonging to three genera, Trichodina Ehrenberg, 1830, Paratrichodina Lom, 1963 and Trichodinella Šrámek-Hušek, 1953 were reinvestigated following dry silver impregnation. These were: Trichodina rectuncinata Raabe, 1958, T. jadranica (Raabe, 1958) Haider, 1964, Paratrichodina globonuclea Lom, 1963, P. obliqua Lom, 1963 and Trichodinella lomi Xu, Song & Warren, 1999. Morphometric data and comparative descriptions of these trichodinids are provided along with details of their prevalence and intensity of infestation.