| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Amazon | River (basin) | native | 6329 |
| Iguazú River | River (basin) | native | 56308 |
| Neotropical | Zoogeographic realm | endemic | 38376 |
| Orinoco | River (basin) | native | 38376 |
| Pará-Tocantins | River (basin) | native | 38376 |
| Paraná | River (basin) | native | 38376 |
| São Francisco | River (basin) | native | 38376 |