| 生态系 | 类型 | 状态 | 参考文献 |
|---|---|---|---|
| Acre | River (basin) | native | 97592 |
| Amazon | River (basin) | native | 39056 |
| Neotropical | Zoogeographic realm | endemic | 39056 |
| Orinoco | River (basin) | native | 39056 |
| Paraguay | River (basin) | native | 598 |
| Paraná | River (basin) | native | 39056 |
| Uruguay | River (basin) | native | 39056 |