| غذا I | غذا II | غذا III | نام غذا | قلمرو | مرحله شکارچی |
|---|---|---|---|---|---|
| detritus | detritus | debris | unidentified | UK Engld Wal | juv./بزرگسالان |
| nekton | finfish | bony fish | Phoxinus phoxinus | (در دسترس نیست) | بزرگسالان |
| nekton | finfish | bony fish | Perca fluviatilis | Finland | بزرگسالان |
| others | other terrest. invertebrates | n.a./terrest. Insects | terrestrial spiders | UK Scotland | juv./بزرگسالان |
| others | other terrest. invertebrates | n.a./terrest. Insects | terrestial insects | UK Engld Wal | juv./بزرگسالان |
| plants | other plants | benthic algae/weeds | macrophytes | UK Engld Wal | juv./بزرگسالان |
| plants | other plants | benthic algae/weeds | unidentified macrophytes | UK Engld Wal | juv./بزرگسالان |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | Eurycercus lamellatus | Norway | juv./بزرگسالان |
| zoobenthos | benth. crust. | n.a./other benth. crustaceans | Lepidurus arcticus | Norway | juv./بزرگسالان |
| zoobenthos | benth. crust. | ostracods | unidentified | UK Scotland | بزرگسالان |
| zoobenthos | benth. crust. | shrimps/prawns | freshwater shrimps | UK Engld Wal | juv./بزرگسالان |
| zoobenthos | insects | insects | Chironomid pupae | Norway | juv./بزرگسالان |
| zoobenthos | insects | insects | midge | UK Engld Wal | juv./بزرگسالان |
| zoobenthos | insects | insects | beetle | UK Scotland | juv./بزرگسالان |
| zoobenthos | insects | insects | mayfly | UK Gr. Britain | juv./بزرگسالان |
| zoobenthos | insects | insects | aquatic bugs | UK Scotland | juv./بزرگسالان |
| zoobenthos | insects | insects | stonefly | UK Scotland | juv./بزرگسالان |
| zoobenthos | insects | insects | blackfly | UK Engld Wal | juv./بزرگسالان |
| zoobenthos | insects | insects | Caddis fly | UK Scotland | juv./بزرگسالان |
| zoobenthos | insects | insects | flies | UK Scotland | juv./بزرگسالان |
| zoobenthos | mollusks | bivalves | pea shells | UK Engld Wal | juv./بزرگسالان |
| zoobenthos | mollusks | gastropods | snails | UK Scotland | juv./بزرگسالان |
| zoobenthos | other benth. invertebrates | n.a./other benth. Invertebrates | unidentified | UK Scotland | juv./بزرگسالان |
| zoobenthos | worms | n.a./other annelids | leeches | UK Engld Wal | juv./بزرگسالان |
| zoobenthos | worms | non-annelids | unidentified | UK Engld Wal | juv./بزرگسالان |
| zooplankton | fish (early stages) | fish eggs/larvae | unidentified | UK Engld Wal | juv./بزرگسالان |
| zooplankton | plank. crust. | cladocerans | Bythotrephes longimanus | Norway | juv./بزرگسالان |
| zooplankton | plank. crust. | cladocerans | water louse | UK Engld Wal | juv./بزرگسالان |
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