| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| detritus | detritus | debris | organic debris | Canada | juv./adults |
| nekton | finfish | bony fish | Hippocampus spp. ova with embryos | Greece | juv./adults |
| plants | other plants | benthic algae/weeds | Unidentified algae | Greece | juv./adults |
| zoobenthos | benth. crust. | amphipods | unidentified | France | juv./adults |
| zoobenthos | benth. crust. | amphipods | Unidentified Amphipoda | Greece | juv./adults |
| zoobenthos | benth. crust. | benth. copepods | unidentified | France | juv./adults |
| zoobenthos | benth. crust. | crabs | Unidentified Brachyura | Greece | juv./adults |
| zoobenthos | benth. crust. | crabs | Unidentified Anomura | Greece | juv./adults |
| zoobenthos | benth. crust. | n.a./other benth. Crustaceans | Unidentified Cumacea | Greece | juv./adults |
| zoobenthos | benth. crust. | ostracods | Unidentified Ostracoda | Greece | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unspecified small prey | Canada | juv./adults |
| zoobenthos | worms | polychaetes | Unidentified Polychaeta | Greece | juv./adults |
| zooplankton | plank. crust. | mysids | Mysis | Germany | juv./adults |
| zooplankton | plank. crust. | mysids | Unidentified Mysideacea | Greece | juv./adults |