Journal of the Graduate School of Biosphere Science, Hiroshima University Volume 51
2012-12-24 発行

九州初記録の魚類寄生虫チョウとコイ科魚類における重度寄生例

Argulus japonicus Thiele (Crustacea: Branchiura) from Kyushu, western Japan,with a note on its heavy infection of koi carp (Cyprinus carpio) and Japanese crucian carp (Carassius cuvieri)
Murase, Takuya
Yanagi, Soetsu
Maeno, Kouji
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abstract
Specimens of Argulus japonicus Thiele, 1900 were collected from the body surface of the following cyprinids in Kagoshima Prefecture, Kyushu, western Japan: one and two live common carp (Cyptinus carpio) from a hobbist's pond and a reservoir in July 2007 and June 2012, respectively; a freshlydead koi carp (C. carpio) from a hobbist's pond in September 2011; and three freshly-dead Japanese crucian carp (Carassius cuvieri) from the Nakadake Dam Reservoir in June 2010. These collections represent the first records of A. japonicus from Kyushu Island. As many as 720 and more than 100 A. japonicus were found on the koi carp and each of the Japanese crucian carp, respectively. In the Nakadake Dam Reservoir, more than 1,000 Japanese crucian carp were found dead in early and mid-June 2010. It seems that the koi carp and the Japanese crucian carp were killed by the heavy infection of A. japonicus.
subject
エラオ類
魚類寄生虫
ゲンゴロウブナ
コイ
新産地記録
チョウ
Argulus japonicus
Argulus japonicas
Branchiura
Carassius cuvieri
Cyprinus carpio
fish parasite
new locality record
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