| Predator name | Ptychocheilus oregonensis | Main Ref. | Petersen, J.H. and D.L. Ward, 1999 |
| Predator group | Cyprinidae | Predator stage | juv./adults |
| Predator I | finfish | Predator II | bony fish |
| Prey stage | juv./adults | ||
| % of stomach contents | - | ||
| Locality | John Day Reservoir, Pacific Northwest. | ||
| Country | USA | ||