魚類学雑誌
Online ISSN : 1884-7374
Print ISSN : 0021-5090
短報
霞ケ浦における外来種コウライギギ(ナマズ目ギギ科)の採集記録と定着のおそれ
荒山 和則松崎 慎一郎増子 勝男萩原 富司諸澤 崇裕加納 光樹渡辺 勝敏
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ジャーナル フリー

2012 年 59 巻 2 号 p. 141-146

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Eight specimens (28.2–170.2 mm SL) of the non-indigenous bagrid catfish Pseudobagrus fulvidraco were collected from the Lake Kasumigaura system, Ibaraki Prefecture, central Japan, during December 2008 and November 2011. Three juvenile specimens of this invasive species indicated successful reproductive activity in the lake system. The species is known to have similar morphological and food habits to channel catfish Ictalurus punctatus, which has also invaded Lake Kasumiguara, causing damage to the ecosystem and problems for local fisheries. The establishment and future habitat expansion of P. fulvidraco would also cause serious ecological and economic problems.

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© 2012 The Ichthyological Society of Japan
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