| Species | Name | Family | Habitat | Length (cm) | Trophic Level | Status |
|---|---|---|---|---|---|---|
| Anadoras weddellii | Doradidae | demersal | 15.0 SL | 2.8 | native | |
| Aphyocharax dentatus | Characidae | benthopelagic | 7.2 SL | 3.1 | native | |
| Hypostomus borellii | Loricariidae | demersal | 16.1 SL | 2.2 | native | |
| Imparfinis guttatus | Heptapteridae | demersal | 12.7 SL | 3.1 | native | |
| Ixinandria steinbachi | Loricariidae | demersal | 11.3 SL | 2.6 | native | |
| Odontostilbe microcephala | Characidae | benthopelagic | 5.2 SL | 2.3 | native | |
| Parodon carrikeri | Parodontidae | benthopelagic | 14.7 SL | 2.3 | native | |
| Pyrrhulina australis | Lebiasinidae | benthopelagic | 5.0 SL | 3.2 | native | |
| Trichomycterus therma | Trichomycteridae | demersal | 5.8 SL | 3.2 | native |