| Huvudföda | Procent |
Trofisk nivå (y) |
Studerat utvecklingsstadium | Land | Observationsplats | Ref. |
|---|---|---|---|---|---|---|
| zoobenthos | 57 | 2.7 | juv./adults | Russia | Kama Reservoir | 75178 |
| zoobenthos | 45 | 2.7 | juv./adults | Russia | Kama Reservoir | 75178 |
| zoobenthos | 55 | 2.7 | juv./adults | Russia | Kama Reservoir | 75178 |
| zoobenthos | 84 | 3.1 | juv./adults | Russia | Kama Reservoir | 75178 |
| zoobenthos | 66 | 2.9 | juv./adults | Russia | Kama Reservoir | 75178 |
| zoobenthos | 63 | 2.8 | juv./adults | Russia | Kama Reservoir | 75178 |