| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| nekton | finfish | bony fish | Atherina boyeri | Russia | adults |
| nekton | finfish | bony fish | Alosa brashnikovi | Russia | juv./adults |
| nekton | finfish | bony fish | Clupeonella cultriventris | Russia | adults |
| nekton | finfish | bony fish | Clupeonella engrauliformis | Iran | adults |
| nekton | finfish | bony fish | Neogobius sp. | Russia | adults |
| nekton | finfish | bony fish | Liza saliens | Russia | juv./adults |
| nekton | finfish | bony fish | Syngnathus abaster | Russia | juv./adults |
| plants | other plants | benthic algae/weeds | Zostera sp. | Russia | juv./adults |
| zoobenthos | benth. crust. | lobsters | Astacus leptodactylus | Russia | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | Astacus leptodactylus | Russia | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | Palaemon adspersus | Russia | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | Palaemon adspersus | Russia | juv./adults |
| zoobenthos | mollusks | bivalves | Mytilaster | Russia | juv./adults |
| zoobenthos | mollusks | bivalves | Cerastoderma sp. | Russia | juv./adults |
| zoobenthos | mollusks | n.a./other mollusks | unidentified | (not available) | adults |
| zooplankton | plank. crust. | n.a./other plank. crustaceans | unidentified | (not available) | juv./adults |