| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | plant debris | Spain | recruits/juv. |
| nekton | finfish | bony fish | unidentified | (not available) | juv./adults |
| zoobenthos | benth. crust. | amphipods | Echinogammarus sp. | Spain | recruits/juv. |
| zoobenthos | benth. crust. | amphipods | Hyalella azteca | USA | juv./adults |
| zoobenthos | benth. crust. | benth. copepods | Tropocyclops prasinus | Spain | recruits/juv. |
| zoobenthos | benth. crust. | isopods | Asellus aquaticus | Austria | juv./adults |
| zoobenthos | benth. crust. | isopods | Asellus aquaticus | Austria | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | unidentified | (not available) | juv./adults |
| zoobenthos | benth. crust. | ostracods | unidentified ostracods | Canada | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | Atyaephyra desmaresti | Spain | recruits/juv. |
| zoobenthos | insects | insects | Microtendipes sp. | Spain | recruits/juv. |
| zoobenthos | insects | insects | midge larvae | Canada | juv./adults |
| zoobenthos | insects | insects | midge pupae | Austria | juv./adults |
| zoobenthos | insects | insects | Procladius choreus | Austria | juv./adults |
| zoobenthos | insects | insects | Tanypus spp. | Austria | juv./adults |
| zoobenthos | insects | insects | Pyrrhosoma nymphula | Spain | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Austria | juv./adults |
| zoobenthos | insects | insects | larvae | Canada | juv./adults |
| zoobenthos | insects | insects | Ecnomus sp. | Spain | recruits/juv. |
| zoobenthos | insects | insects | Micronecta meridionalis | Spain | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Spain | recruits/juv. |
| zoobenthos | insects | insects | unidentified | Austria | juv./adults |
| zoobenthos | insects | insects | unidentified | (not available) | juv./adults |
| zoobenthos | insects | insects | unidentified nymphs | Austria | juv./adults |
| zoobenthos | mollusks | gastropods | Bythinia sp. | Austria | juv./adults |
| zoobenthos | mollusks | gastropods | Planorbis sp. | Austria | juv./adults |
| zoobenthos | worms | n.a./other annelids | unidentified | (not available) | juv./adults |
| zooplankton | fish (early stages) | fish eggs/larvae | fish eggs | Spain | recruits/juv. |
| zooplankton | fish (early stages) | fish eggs/larvae | unidentified | (not available) | juv./adults |
| zooplankton | plank. crust. | cladocerans | Ceriodaphnia reticulata | Spain | recruits/juv. |
| zooplankton | plank. crust. | cladocerans | Daphnia longispina | Spain | recruits/juv. |
| zooplankton | plank. crust. | n.a./other plank. crustaceans | unidentified rotifers | Spain | juv./adults |
| zooplankton | plank. crust. | plank. copepods | copepods | Spain | juv./adults |