Invasion information |
Range in Japan |
Chuzenjiko Lake, Tochigi Pref. |
|
Origin |
Imported from Canada (Opeongo Lake and Ontario Lake) |
Date |
In 1966, 1968 (from Opeongo Lake), and 1969 (from Ontario Lake), eggs are imported. Release was in 1969, at Chuzenjiko Lake. |
Route |
Deliberate: As fishery resource. |
Impact |
Unknown impact. |
Regulation in Japan |
No action for prevention, mitigation, control, or eradication. |
Introduced range in other countries |
Norway, Sweden, Germany, Switzerland, Italy, Argentina, Kerguelen Is., etc. |