Invasion information | ||
Range in Japan | 1960-1980s: Tokyo Bay, Izu Peninsula, Wakayama, Osaka, Hyogo, Kochi, Oita, Okinawajima Is., Ishigakijima Is. 1990-2000s: Yamagata, Tokyo Bay, Shizuoka, Ise Bay, Wakayama Osaka, Hyogo, Tokushima, Kochi, Ehime, Yamaguchi, Fukuoka, Oita, Kagoshima Okinawajima Is. |
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Origin | Unknown. | |
Date | The first record of Japan was in 1967, at Hyogo Pref. | |
Route | Accidental: Ballast water, or fouling on ship. Deliberate: Preliminary aquafarming for food (Ishigakijima Island). | |
Impact | Actually: Competition with native species. Water pollution. Potentially: Hybridization with related species (There is no native Perna in Japan). Native organism(s) affected: Coastal community. | |
Regulation in Japan | No action for prevention, mitigation, control, or eradication. | |
Introduced range in other countries | Coast of Caribbean Sea, Gulf of Mexico, and Australia. |
Reference | Notes |
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