| Main Ref. | Oscoz, J., P.M. Leunda, F. Campos, M.C. Escala and R. Miranda, 2005 | ||
| Predator stage | recruits/juv. | ||
| Food I | zoobenthos | ||
| Food II | benth. crust. | ||
| Food III | amphipods | ||
| Food group | Gammaridae | Prey Stage/Part | juv./adults |
| Food name | unidentified gammarids | ||
| Commonness | 18.42 | common (6-20%) | |
| Country | Spain | ||
| Remark | Locality: Erro River, Navarra, north of Spain. August 2002. | ||