Invasion information | ||
Range in Japan | Tohoku District, Pacific side of Shikoku, Dogo (Oki Islands), Nakadorijima Is. (Goto Islands), Tanegashima Is. (Osumi Islands), and Tokunoshima Is. (Amami Is.) | |
Origin | Biwako Lake, Japan. | |
Date | Unknown. | |
Route | Accidental: Hitchhiking on seed release of ayu (Plecoglossus altivelis altivelis). | |
Impact | Unknown impact. | |
Regulation in Japan | Capture of this species is controled by several local governments. | |
Introduced range in other countries | None. |
Reference | Notes |
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