New Data on the Hosts and Attachment Sites of the Fish Leech Taimenobdella amurensis (Hirudinida, Piscicolidae)

概要

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New information on the hosts and attachment sites of Taimenobdella amurensis (Epshtein, 1964) is presented based on various surveys conducted in the Chitose River and its tributary, Mamachi River, central Hokkaido, Japan. Chum salmon Oncorhynchus keta from the Chitose River and brown trout Salmo trutta from the Mamachi River were infested by T. amurensis: these two fishes are new hosts. Leeches were found on the skin and fins of the fishes although the species was previously known only from the gills. Underwater observations made in the Chitose River showed that leeches (probably T. amurensis) were attached to the body surface of eight fish species (O. keta, O. masou masou, S. trutta, Salvelinus leucomaenis leucomaenis, Gasterosteus aculeatus aculeatus, Pungitius pungitius, Cottus nozawae, and Gymnogobius urotaenia).
日本生物地理学会の論文
2009-08-20