| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | unidentified | Denmark | juv./adults |
| plants | other plants | benthic algae/weeds | Lemna trisulca | Finland | juv./adults |
| plants | other plants | benthic algae/weeds | Potamogeton berchtoldii | Finland | juv./adults |
| plants | other plants | benthic algae/weeds | unidentified macrophtyes | UK Engld Wal | juv./adults |
| plants | other plants | periphyton | Aufwuchs | Austria | juv./adults |
| plants | phytoplankton | blue-green algae | Microcystis sp. | France | juv./adults |
| plants | phytoplankton | blue-green algae | Anabaena sp. | France | juv./adults |
| plants | phytoplankton | diatoms | Melosira italica | France | juv./adults |
| plants | phytoplankton | green algae | Stigeoclonium sp. | Finland | juv./adults |
| plants | phytoplankton | green algae | Oedogonium sp. | Finland | juv./adults |
| zoobenthos | benth. crust. | benth. copepods | unidentified copepods | Poland | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | unidentified | UK Engld Wal | juv./adults |
| zoobenthos | insects | insects | Chaoborus | Sweden | juv./adults |
| zoobenthos | insects | insects | Chironomid larvae | Russia | recruits/juv. |
| zoobenthos | insects | insects | Chironomid pupae | Russia | recruits/juv. |
| zoobenthos | insects | insects | midge | UK Engld Wal | juv./adults |
| zoobenthos | insects | insects | unidentified Coleoptera | Poland | juv./adults |
| zoobenthos | insects | insects | blackfly | UK Engld Wal | juv./adults |
| zoobenthos | insects | insects | ephemeropteran larvae | Finland | juv./adults |
| zoobenthos | insects | insects | may flies | Russia | recruits/juv. |
| zoobenthos | insects | insects | mayfly | UK Engld Wal | juv./adults |
| zoobenthos | insects | insects | unidentified odonate larvae | Finland | juv./adults |
| zoobenthos | insects | insects | stoneflies | Russia | recruits/juv. |
| zoobenthos | insects | insects | unidentified Simuliidae | Poland | juv./adults |
| zoobenthos | insects | insects | unidentified Simuliidae | Russia | recruits/juv. |
| zoobenthos | insects | insects | Caddis fly | UK Engld Wal | juv./adults |
| zoobenthos | insects | insects | caddis-flies | Russia | recruits/juv. |
| zoobenthos | mollusks | bivalves | Dreissena | (not available) | juv./adults |
| zoobenthos | mollusks | gastropods | unidentified | Finland | juv./adults |
| zoobenthos | mollusks | n.a./other mollusks | unidentified | France | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | Hydracarina | Russia | recruits/juv. |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unidentified macroinvertebrates | UK Engld Wal | juv./adults |
| zoobenthos | worms | n.a./other annelids | Oligochaeta | Russia | recruits/juv. |
| zoobenthos | worms | n.a./other annelids | unidentified oligochaetes | Poland | juv./adults |
| zoobenthos | worms | non-annelids | unidentified nematodes | Russia | recruits/juv. |
| zooplankton | plank. crust. | cladocerans | Bosmina sp. | Finland | juv./adults |
| zooplankton | plank. crust. | cladocerans | Chydorus sphaericus | Denmark | juv./adults |
| zooplankton | plank. crust. | cladocerans | Daphnia | Denmark | juv./adults |
| zooplankton | plank. crust. | cladocerans | Leptodora kindtii | Denmark | juv./adults |