| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| nekton | finfish | bony fish | unidentified fish | Canada | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | unidentified crustacea | Canada | juv./adults |
| zoobenthos | insects | insects | midges | Canada | recruits/juv. |
| zoobenthos | insects | insects | water boatmen | Canada | juv./adults |
| zoobenthos | insects | insects | mayflies | Canada | recruits/juv. |
| zoobenthos | insects | insects | aquatic insects | Canada | juv./adults |
| zoobenthos | insects | insects | caddisflies | Canada | recruits/juv. |
| zoobenthos | mollusks | n.a./other mollusks | unidentified mollusks | Canada | juv./adults |