| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| nekton | finfish | bony fish | Micropterus dolomieu | Canada | juv./adults |
| nekton | finfish | bony fish | Cottus bairdii | (not available) | juv./adults |
| nekton | finfish | bony fish | Etheostoma nigrum | (not available) | juv./adults |
| nekton | finfish | bony fish | Perca flavescens | Canada | juv./adults |
| nekton | finfish | bony fish | Oncorhynchus kisutch | USA | juv./adults |
| nekton | finfish | bony fish | Oncorhynchus mykiss | USA | juv./adults |
| nekton | finfish | bony fish | Oncorhynchus nerka | USA | juv./adults |
| nekton | finfish | bony fish | Oncorhynchus tshawytscha | USA | juv./adults |
| nekton | finfish | n.a./other finfish | unidentified | Canada | juv./adults |
| zoobenthos | benth. crust. | lobsters | Orconectes virilis | Canada | juv./adults |
| zoobenthos | benth. crust. | lobsters | unidentified | (not available) | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | Orconectes virilis | Canada | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | Atyoida bisulcata | Hawaii | juv./adults |
| zoobenthos | benth. crust. | shrimps/prawns | unidentified | (not available) | juv./adults |
| zoobenthos | insects | insects | insects | USA | juv./adults |
| zoobenthos | insects | insects | unidentified | Canada | juv./adults |