Invasion information |
Range in Japan |
Central to western Japan including Ryukyu Islands,Hachijo Island |
|
Origin |
Taiwan |
Date |
1981 |
Route |
For food. Cultured as a side business. |
Impact |
Feeding crops such as rice, lotus, rush, etc. Serious in southern areas of Japan. Native organism(s) affected: Rice, lotus, water arum, rush, etc. |
Regulation in Japan |
Keeping this species is prohibited in Shiga Pref. Release of this species is prohibited in Aichi Pref. |
Introduced range in other countries |
SE Asia, continental China, Taiwan, South Korea, Hawaii, etc. |