| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | detritus | Spain | juv./adults |
| plants | other plants | benthic algae/weeds | unspecified plants | (not available) | juv./adults |
| zoobenthos | benth. crust. | ostracods | unidentified ostracods | Spain | juv./adults |
| zoobenthos | insects | insects | ceratopogonids larvae | Spain | juv./adults |
| zoobenthos | insects | insects | chironomids larvae | Spain | juv./adults |
| zoobenthos | insects | insects | chironomids nymphs | Spain | juv./adults |
| zoobenthos | insects | insects | Empididae | Spain | juv./adults |
| zoobenthos | insects | insects | Simulidae | Spain | juv./adults |
| zoobenthos | insects | insects | water mites | Spain | juv./adults |
| zoobenthos | insects | insects | caddis flies | Spain | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unspecified invertebrates | (not available) | juv./adults |
| zooplankton | other plank. invertebrates | n.a./other plank. invertebrates | macrobiotid eggs | Spain | juv./adults |
| zooplankton | plank. crust. | cladocerans | unidentified cladocerans | Spain | juv./adults |
| zooplankton | plank. crust. | plank. copepods | unidentified copepods | Spain | juv./adults |