| Main Ref. | Maitland, P.S. and R.N. Campbell, 1992 | ||
| Predator stage | juv./adults | ||
| Food I | zoobenthos | ||
| Food II | benth. crust. | ||
| Food III | shrimps/prawns | ||
| Food group | unidentified | Prey Stage/Part | juv./adults |
| Food name | unidentified freshwater shrimps | ||
| Commonness | 65 | dominant ( > 50%) | |
| Country | UK Engld Wal | ||
| Remark | Locality: Llyn Alaw. Between October and February; no. of fish examined=38. | ||