| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | carcasses | Unspecified dead animals | Canada | adults |
| plants | other plants | benthic algae/weeds | Unspecified seaweeds | Canada | adults |
| zoobenthos | echinoderms | sea urchins | Unspecified sea urchin | Canada | adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | Unspecified squid eggs | Canada | adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | Tubulipora sp. | USA | adults |