| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | carcasses | animal remains | USA | adults |
| zoobenthos | mollusks | bivalves | unidentified | Canada | juv./adults |
| zoobenthos | worms | polychaetes | polychaetes | (not available) | adults |
| zooplankton | plank. crust. | cladocerans | unidentified | Canada | juv./adults |
| zooplankton | plank. crust. | plank. copepods | unidentified | Canada | juv./adults |
| zooplankton | plank. crust. | plank. copepods | unidentified | Canada | juv./adults |
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