| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | debris | Canada | adults |
| plants | other plants | benthic algae/weeds | unidentified | (not available) | adults |
| zoobenthos | benth. crust. | amphipods | Hyalella | (not available) | juv./adults |
| zoobenthos | benth. crust. | amphipods | unidentified | (not available) | adults |
| zoobenthos | insects | insects | midges | (not available) | juv./adults |
| zoobenthos | insects | insects | unidentified | (not available) | adults |
| zoobenthos | insects | insects | unidentified | (not available) | adults |
| zoobenthos | insects | insects | mayflies | (not available) | adults |
| zoobenthos | insects | insects | unidentified | (not available) | adults |
| zoobenthos | insects | insects | caddis flies | (not available) | adults |
| zoobenthos | insects | insects | unidentified | (not available) | Larvae |
| zoobenthos | mollusks | bivalves | unidentified | (not available) | juv./adults |
| zoobenthos | mollusks | gastropods | unidentified | (not available) | juv./adults |
| zoobenthos | mollusks | n.a./other mollusks | unidentified | (not available) | adults |
| zooplankton | benth. crust. | ostracods | unidentified | (not available) | juv./adults |
| zooplankton | fish (early stages) | fish eggs/larvae | trout | (not available) | juv./adults |
| zooplankton | plank. crust. | cladocerans | Bosmina | (not available) | juv./adults |
| zooplankton | plank. crust. | cladocerans | unidentified | (not available) | adults |
| zooplankton | plank. crust. | cladocerans | unidentified | (not available) | Larvae |
| zooplankton | plank. crust. | plank. copepods | Cyclops | (not available) | juv./adults |