| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| zoobenthos | benth. crust. | amphipods | unspecified amphipods | Canada | juv./adults |
| zoobenthos | insects | insects | unspecified insects | Canada | juv./adults |
| zoobenthos | mollusks | n.a./other mollusks | unidentified | (not available) | juv./adults |
| zoobenthos | worms | n.a./other annelids | unspecified worms | Canada | juv./adults |
| zooplankton | fish (early stages) | fish eggs/larvae | eggs of unspecified fishes | Canada | juv./adults |