Invasion information |
Range in Japan |
Foulings on ports of Shizuoka, Toyama, Osaka, Hyogo, Tokushima, Kochi, Yamaguchi, and Fukuoka Prefs. are recorded. |
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Origin |
Maybe Gladstone, Australia. Almost ports with this species are used for importing coal from Gladstone. |
Date |
The first record was in 1991 at Uchinoura Bay, Kochi Pref. Spread by early 2000s. |
Route |
Accidenta: Hitchhiking ballast water. |
Impact |
Unknown. This species possibly competitive with native species, due to large fecundity. |
Regulation in Japan |
No action for prevention, mitigation, control, or eradication. |
Introduced range in other countries |
Australia, South Africa, Brazil, NW Italy, NE Spain, SE and W North America, and Oahu, Hawaii. |