| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | carcasses | Rangifer tarandus platyrhynchus | (not available) | juv./adults |
| detritus | detritus | carcasses | Physeter macrocephalus | (not available) | juv./adults |
| nekton | finfish | bony fish | Triglopsis quadricornis | Canada | juv./adults |
| nekton | finfish | bony fish | Salvelinus alpinus | Canada | juv./adults |
| others | birds | sea birds | Alle alle | (not available) | juv./adults |
| others | birds | sea birds | Uria lomvia | (not available) | juv./adults |
| others | birds | sea birds | Branta canadensis | Canada | juv./adults |
| others | birds | sea birds | Clangula hyemalis | Canada | juv./adults |
| others | birds | sea birds | Rissa tridactyla | (not available) | juv./adults |
| others | mammals | dolphins | Balaena mysticetus | (not available) | adults |
| others | mammals | dolphins | Balaena mysticetus | (not available) | juv./adults |
| others | mammals | dolphins | Delphinapterus leucas | (not available) | adults |
| others | mammals | dolphins | Delphinapterus leucas | (not available) | juv./adults |
| others | mammals | dolphins | Monodon monoceros | Canada | juv./adults |
| others | mammals | n.a./other mammals | Rangifer tarandus platyrhynchus | Svalbard | juv./adults |
| others | mammals | n.a./other mammals | Microtus pennsylvanicus | Canada | juv./adults |
| others | mammals | n.a./other mammals | Ondatra zibethicus | Canada | juv./adults |
| others | mammals | n.a./other mammals | Ursus maritimus | Canada | juv./adults |
| others | mammals | pinnipeds | Odobenus rosmarus | (not available) | juv./adults |
| others | mammals | pinnipeds | Odobenus rosmarus divergens | (not available) | adults |
| others | mammals | pinnipeds | Odobenus rosmarus divergens | (not available) | juv./adults |
| others | mammals | pinnipeds | Odobenus rosmarus rosmarus | Canada | juv./adults |
| others | mammals | pinnipeds | Erignathus barbatus | (not available) | adults |
| others | mammals | pinnipeds | Erignathus barbatus | (not available) | juv./adults |
| others | mammals | pinnipeds | Erignathus barbatus | (not available) | juv./adults |
| others | mammals | pinnipeds | Pagophilus groenlandicus | (not available) | juv./adults |
| others | mammals | pinnipeds | Pagophilus groenlandicus | (not available) | juv./adults |
| others | mammals | pinnipeds | Phoca hispida | (not available) | juv./adults |
| others | mammals | pinnipeds | Phoca vitulina | Canada | juv./adults |
| others | mammals | pinnipeds | Pusa hispida | (not available) | adults |
| others | mammals | pinnipeds | Pusa hispida | Canada | juv./adults |
| others | mammals | pinnipeds | Pusa hispida | (not available) | juv./adults |
| plants | other plants | benthic algae/weeds | Desmarestia aculeata | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Dilsea integra | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Fucus spp. | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Laminaria sp. | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Laminaria spp. | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Palmaria palmata | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Sphacelaria spp. | Canada | juv./adults |
| plants | other plants | terrestrial plants | Betula glandulosa | Canada | juv./adults |
| plants | other plants | terrestrial plants | Eriophorum scheuchzeri | Canada | juv./adults |
| plants | other plants | terrestrial plants | Empetrum nigrum | Canada | juv./adults |
| plants | other plants | terrestrial plants | Equisetum sp. | Canada | juv./adults |
| plants | other plants | terrestrial plants | Lycopodium sp. | Canada | juv./adults |
| plants | other plants | terrestrial plants | Leymus arenarius | Canada | juv./adults |
| plants | other plants | terrestrial plants | Salix spp. | Canada | juv./adults |
| plants | other plants | terrestrial plants | Zostera marina | Canada | juv./adults |
| zoobenthos | echinoderms | sea urchins | Strongylocentrotus droebachiensis | Canada | juv./adults |
| zoobenthos | mollusks | bivalves | Mytilus edulis | (not available) | juv./adults |