| Main Food | Percent |
Trophic Level (y) |
Predator Life Stage | Country | Locality | Ref. |
|---|---|---|---|---|---|---|
| zoobenthos | 40 | 3.0 | adults | Hungary | littoral zone of Lake Balaton, April-November 1996 | 26323 |
| zoobenthos | 36 | 3.1 | adults | Hungary | Stony shoreline of Lake Balaton, between April and November 1996 | 31897 |
| zoobenthos | 47 | 3.2 | recruits/juv. | Russia | Lower reaches of the Don, 1970 | 6159 |
| zoobenthos | 37 | 3.0 | recruits/juv. | - | Lower reaches of the Don, 1972 | 6159 |
| zooplankton | 70 | 3.0 | recruits/juv. | - | Lower reaches of the Don, 1971 | 6159 |
| zooplankton | 76 | 3.0 | recruits/juv. | - | Lower reaches of the Don, 1972 | 6159 |
| zooplankton | 92 | 3.0 | recruits/juv. | - | Lower reaches of the Don, 1970 | 6159 |
| zoobenthos | 79 | 3.2 | juv./adults | Russia | Saratov Reservoir | 75079 |
| zoobenthos | 54 | 3.1 | juv./adults | Russia | Caspian Sea | 75163 |