Invasion information |
Range in Japan |
Nagano and Shizuoka Pref. (Suwako Lake and Tenryugawa River System). |
|
Origin |
Within Japan. |
Date |
Unknown. |
Route |
Accidental: Hitchhiking on introduction of bivalves (Cristaria plicata) as oviposition site for the bitterlings. |
Impact |
Competition with native bitterlings in oviposition site bivalves. Native organism(s) affected: Native bitterling species. |
Regulation in Japan |
No action for prevention, mitigation, control, or eradication. |
Introduced range in other countries |
None. |