| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Ethiopian | Zoogeographic realm | endemic | 13337 |
| Great Fish | River (basin) | introduced | 94788 |
| Great Kei | River (basin) | introduced | 94788 |
| Limpopo | River (basin) | introduced | 94788 |
| Orange | River (basin) | endemic | 13332 |
| Sundays | River (basin) | introduced | 94788 |