| Country | ABB | Occurrence | Main Ref. |
|---|---|---|---|
| Alaska | ALK | native | 7419 |
| Argentina | ARG | not established | 1739 |
| Canada | CAN | native | 1998 |
| Denmark | DNK | not established | 1739 |
| Finland | FIN | not established | 13686 |
| India | IND | questionable | 45255 |
| Japan | JPN | native | 559 |
| Kuril Is. | KUR | native | 37812 |
| New Zealand | NZL | introduced | 1739 |
| Russian Fed | RUS | native | 26334 |
| Sweden | SWE | introduced | 30402 |
| USA | USA | native | 5723 |