| Main Ref. | Oscoz, J., P.M. Leunda, R. Miranda and M.C. Escala, 2006 | ||
| Predator stage | adults | ||
| Food I | zoobenthos | ||
| Food II | insects | ||
| Food III | insects | ||
| Food group | Chironomidae | Prey Stage/Part | larvae |
| Food name | midges larvae | ||
| Commonness | 100 | dominant ( > 50%) | |
| Country | Spain | ||
| Remark | Locality: River Larraun, a tributary of Ebro River, Navarre, northern Spain. Fish length: >8 cm. | ||