Journal of the Graduate School of Biosphere Science, Hiroshima University Volume 47
2008-12-20 発行

A case of infestation by Limnotrachelobdella okae (Hirudinida: Piscicolidae) on Japanese Amberjack Seriola quinqueradiata cultured in Kyushu, Japan

九州で養殖されていたブリに見られたヒダビルの寄生
Fukuda, Yutaka
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abstract
Two leeches, identified as Limnotrachelobdella okae (Moore, 1924), were found attached to the skin of a Japanese amberjack Seriola quinqueradiata Temminck and Schlegel, 1845 (Perciformes: Carangidae) cultured in Tsukumi Bay, the northwestern Bungo Channel, off Youra, Tsukumi, Oita Prefecture, Japan in January 2001. Although a survey of fish diseases was conducted for 21 years from 1984-1986 and from 1990-2007 in the coastal seawaters of Oita Prefecture, this finding was the first and only case of leech infestation of marine fishes cultured in the region. Since the infested fish was transported from a fish farm in the central Seto Inland Sea in December 2000, it is highly likely that the leeches found were introduced to the culture site in Tsukumi Bay together with the transported fish.
subject
Limnotrachelobdella okae
fish leech
Piscicolidae
amberjack
Seriola quinqueradiata
fish disease
ヒダビル
ウオビル類
ブリ
魚病