| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| others | other terrest. invertebrates | n.a./terrest. insects | unspecified chironomid | UK Scotland | juv./adults |
| others | other terrest. invertebrates | n.a./terrest. insects | unspecified chironomid larvae | Canada | juv./adults |
| others | other terrest. invertebrates | n.a./terrest. insects | Coelopa frigida | UK Scotland | juv./adults |
| others | other terrest. invertebrates | n.a./terrest. insects | Coelopa frigida | UK Scotland | juv./adults |
| others | other terrest. invertebrates | n.a./terrest. insects | unspecified dipteran | UK Scotland | juv./adults |
| plants | other plants | benthic algae/weeds | Fucus sp. | (not available) | juv./adults |
| plants | other plants | benthic algae/weeds | Corallina officinalis | Canada | juv./adults |
| plants | other plants | benthic algae/weeds | Corallina sp. | UK Scotland | juv./adults |
| plants | other plants | benthic algae/weeds | Furcellaria lumbricalis | UK Scotland | juv./adults |
| plants | other plants | benthic algae/weeds | Laminaria sp. | (not available) | juv./adults |
| plants | other plants | benthic algae/weeds | Mastocarpus sp. | (not available) | juv./adults |
| plants | other plants | benthic algae/weeds | Polysiphonia sp. | UK Scotland | juv./adults |
| plants | other plants | benthic algae/weeds | Ptilota plumosa | UK Scotland | juv./adults |
| zoobenthos | benth. crust. | amphipods | Gammarus sp. | UK Scotland | juv./adults |
| zoobenthos | benth. crust. | amphipods | unspecified gammarid | Canada | juv./adults |
| zoobenthos | benth. crust. | amphipods | Orchestia sp. | UK Scotland | juv./adults |
| zoobenthos | benth. crust. | crabs | unspecified crab | Canada | juv./adults |
| zoobenthos | benth. crust. | crabs | Carcinus maenas | UK Scotland | juv./adults |
| zoobenthos | benth. crust. | isopods | Idotea granulosa | UK Scotland | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | Semibalanus balanoides | UK Scotland | juv./adults |
| zoobenthos | cnidarians | n.a./other polyps | Dynamena pumila | UK Scotland | juv./adults |
| zoobenthos | echinoderms | sea stars/brittle stars | Amphipholis squamata | UK Scotland | juv./adults |
| zoobenthos | echinoderms | sea urchins | unspecified echinoids | UK Scotland | juv./adults |
| zoobenthos | mollusks | bivalves | unspecified bivalve | Canada | juv./adults |
| zoobenthos | mollusks | bivalves | Littorina mariae | UK Scotland | juv./adults |
| zoobenthos | mollusks | bivalves | Littorina neglecta | UK Scotland | juv./adults |
| zoobenthos | mollusks | bivalves | Littorina obtusata | UK Scotland | juv./adults |
| zoobenthos | mollusks | bivalves | Mytilus edulis | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Lacuna vincta | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Littorina littorea | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Littorina obtusata | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Littorina saxatilis | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Nucella lapillus | Canada | juv./adults |
| zoobenthos | mollusks | gastropods | Cingula cingillus | UK Scotland | juv./adults |
| zoobenthos | mollusks | gastropods | Onoba semicostata | UK Scotland | juv./adults |
| zoobenthos | mollusks | gastropods | Rissoa interrupta | UK Scotland | juv./adults |
| zoobenthos | mollusks | gastropods | Skeneopsis planorbis | Scott I. | juv./adults |
| zoobenthos | mollusks | gastropods | Margarites helicinus | Canada | juv./adults |
| zoobenthos | mollusks | n.a./other mollusks | unspecified molluscs | Canada | juv./adults |
| zoobenthos | worms | polychaetes | Eulalia viridis | UK Scotland | juv./adults |
| zoobenthos | worms | polychaetes | Harmothoe sp. | UK Scotland | juv./adults |
| zoobenthos | worms | polychaetes | Spirorbis spirorbis | UK Scotland | juv./adults |
| zooplankton | other plank. invertebrates | n.a./other plank. invertebrates | unspecified forams | UK Scotland | juv./adults |