| Main Food | Percent |
Trophic Level (y) |
Predator Life Stage | Country | Locality | Ref. |
|---|---|---|---|---|---|---|
| zoobenthos | 57 | 3.2 | adults | Hungary | littoral zone of Lake Balaton, April-November 1996 | 26323 |
| zoobenthos | 64 | 3.2 | juv./adults | Hungary | Reed grass stands, Lake Balaton, between April and November 1996 | 31897 |
| zoobenthos | 62 | 4.0 | juv./adults | Russia | Saratov Reservoir | 75079 |