| 常見問題 | 狀態 | 注意 |
|---|---|---|
| America, North - Inland waters | native | includes Central America |
| Asia - Inland waters | native | |
| Europe - Inland waters | introduced | excludes former USSR |
| Arctic Ocean | native | |
| Atlantic, Northwest | introduced | |
| Atlantic, Northeast | native | |
| Pacific, Northwest | native | |
| Pacific, Northeast | native | |
| Pacific, Eastern Central | native |