Invasion information | ||
Range in Japan | Established in Tonegawa and Edogawa River System, Kasumigaura and Kitaura Lake. Despite no establishment in other region, routinely released to rivers, lakes, ponds in wide area of Honshu, Shikoku, and Kyushu Islands. | |
Origin | Continental China | |
Date | 1878-1955. Introduction to Tonegawa River and Kasumigaura Lake were 1943 and 1945, and establishment was since 1948. Routinely released in wide area of Japan. | |
Route | Deliberate: For control of weed, as food, and for sports fishing | |
Impact | Destruction of aquatic flora. Native organism(s) affected: Aquatic plant community and cyprinid fish species ovipositing on aquatic plants. | |
Regulation in Japan | Introduction of this species is prohibited in Shiga and Saga Pref. Capture of this species is regulated by several local governments. | |
Introduced range in other countries | SE Asia (Myanmar, Vietnam, Indonesia,etc.), S Asia (India, Buhtan,etc.), C Asia (Kazakhstan,etc.), W Asia (Afghanistan, Iraq, Jordan, Turkey,etc.), Europe (Finland, Germany, Czech, Italy, Belarus, Russia,etc.), Africa (Cote d’Ivoire, Egypt, Morocco, Ethiopia,etc.), USA, Mexico, C America (Costa Rica, Puerto Rico,etc.), Argentina, New Zealand, etc. |
Reference | Notes |
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100 of the Japan’s Worst Invasive Alien Species |