| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| nekton | finfish | bony fish | unspecified finfishes | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | unspecified algae | Canada | juv./adults |
| plants | other plants | terrestrial plants | unspecified vegetable fragments | Canada | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | unspecified crustaceans | Canada | juv./adults |
| zoobenthos | insects | insects | unspecified insects | Canada | juv./adults |
| zoobenthos | worms | n.a./other annelids | unspecified worms | Canada | juv./adults |