| 常見問題 | 狀態 | 注意 |
|---|---|---|
| Africa-Inland Waters | introduced | Complete |
| America, North - Inland waters | introduced | includes Central America |
| America, South - Inland waters | introduced | |
| Asia - Inland waters | native | |
| Europe - Inland waters | native | excludes former USSR |
| Oceania - Inland waters | introduced | |
| Atlantic, Northeast | native | |
| Mediterranean and Black Sea | native |