| Food I | Food II | Food III | Food name | Country | Predator Stage | 
|---|---|---|---|---|---|
| nekton | finfish | bony fish | Unknown Cyprinidae | USA | juv./adults | 
| others | other terrest. invertebrates | n.a./terrest. insects | Unknown Anisoptera | USA | juv./adults | 
| others | other terrest. invertebrates | n.a./terrest. insects | Unknown Corixidae | USA | juv./adults | 
| others | other terrest. invertebrates | n.a./terrest. insects | Unknown Dytiscidae | USA | juv./adults | 
| others | other terrest. invertebrates | n.a./terrest. insects | Unknown Stratiomyidae | USA | juv./adults | 
| plants | other plants | terrestrial plants | Unknown Plantae | USA | juv./adults | 
| zoobenthos | mollusks | gastropods | Unknown Physidae | USA | juv./adults |