| Food I | Food II | Food III | Food name | Country | Predator Stage |
|---|---|---|---|---|---|
| zoobenthos | insects | insects | One day flies. | (not available) | juv./adults |
| zoobenthos | other benth. invertebrates | n.a./other benth. invertebrates | benthic invertebrates | (not available) | juv./adults |
| zooplankton | fish (early stages) | fish eggs/larvae | fish eggs | (not available) | juv./adults |