| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| nekton | finfish | bony fish | Alburnus alburnus | France | juv./adults |
| nekton | finfish | bony fish | Carassius auratus | Serbia | juv./adults |
| nekton | finfish | bony fish | Leuciscus leuciscus | France | juv./adults |
| nekton | finfish | bony fish | Rutilus rutilus | France | juv./adults |
| nekton | finfish | bony fish | Osmerus eperlanus | (not available) | juv./adults |
| others | birds | shore birds | unidentified | France | juv./adults |
| zooplankton | plank. crust. | cladocerans | unidentified | Poland | Larvae |
| zooplankton | plank. crust. | n.a./other plank. crustaceans | unidentified | Poland | Larvae |
| zooplankton | plank. crust. | plank. copepods | unidentified | Poland | Larvae |