| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| zoobenthos | insects | insects | unidentified | China | juv./adults |
| zoobenthos | mollusks | n.a./other mollusks | unidentified | Russia | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | unidentified | Mongolia | juv./adults |
| zooplankton | fish (early stages) | fish eggs/larvae | Lampetra japonica | Russia | juv./adults |
| zooplankton | fish (early stages) | fish eggs/larvae | unidentified | China | juv./adults |