Invasion information |
Range in Japan |
Tonegawa River System, Kasumigaura, Kitaura, and Biwako Lakes, Shimane Pref, Fukushima Pref, Gifu Pref, Aichi Pref and Gunma Pref. |
|
Origin |
Imported from California, USA. |
Date |
Imported in 1971 from California. Establishment in Kasumigaura Lake was 1973-1978 |
Route |
Deliberate: For aquaculture, and for pet animal. |
Impact |
Actually: Predation on aquatic species such as fishes shrimps, in Kasumigaura Lake. Native organism(s) affected: Small fishes, lake prawn, etc. |
Regulation in Japan |
Import, transport and keeping are legally restricted in Japan. |
Introduced range in other countries |
Philippine, Uzbekistan, Armenia, Russia, Italy, Bulgaria, Mexico, Puerto Rico, Hawaii, etc. |