| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | detritus | Poland | juv./adults |
| others | other terrest. Invertebrates | n.a./terrest. insects | unspecified chironomid larvae | Poland | juv./adults |
| others | other terrest. invertebrates | n.a./terrest. insects | unspecified larvae | (not available) | juv./adults |
| others | others | n.a./others | fine gravel | Poland | juv./adults |
| others | others | n.a./others | sand | Poland | juv./adults |
| plants | other plants | benthic algae/weeds | Elodea canadensis | Poland | juv./adults |
| plants | other plants | benthic algae/weeds | Potomogeton sp. | Poland | juv./adults |
| plants | other plants | benthic algae/weeds | Lemna sp. | (not available) | juv./adults |
| plants | other plants | periphyton | unspecified periphytic algae | Poland | juv./adults |
| plants | other plants | terrestrial plants | Phragmites australis | Poland | juv./adults |
| plants | other plants | terrestrial plants | Typha angustifolia | Poland | juv./adults |
| plants | phytoplankton | n.a./other phytoplankton | unspecified phytoplankton | (not available) | larvae |
| zoobenthos | benth. crust. | amphipods | Corophium sp. | (not available) | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | Crangon sp. | (not available) | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | unspecified shrimps | (not available) | juv./adults |
| zoobenthos | mollusks | bivalves | unspecified clams | (not available) | juv./adults |
| zoobenthos | mollusks | gastropods | unspecified gastropods | (not available) | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unspecified benthic invertebrates | (not available) | juv./adults |
| zoobenthos | worms | n.a./other annelids | unspecified oligochaetes | (not available) | juv./adults |
| zooplankton | plank. crust. | cladocerans | Daphnia sp. | (not available) | juv./adults |
| zooplankton | plank. crust. | plank. copepods | unspecified copepods | Poland | juv./adults |