| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| nekton | finfish | bony fish | skin of catfish | Canada | adults |
| nekton | finfish | n.a./other finfish | scales of unspecified larger fishes | (not available) | adults |
| others | others | n.a./others | unspecified fungi | Canada | juv./adults |
| plants | other plants | periphyton | unspecified aufwuchs | Canada | juv./adults |
| zooplankton | other plank. invertebrates | n.a./other plank. invertebrates | unspecified plankton | Canada | juv./adults |
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