| Main Food | Percent |
Trophic Level (y) |
Predator Life Stage | Country | Locality | Ref. |
|---|---|---|---|---|---|---|
| nekton | 37 | 4.3 | juv./adults | USA | John Day Reservoir, Columbia River Basin, April-August 1983-1986 | 26982 |
| zoobenthos | 55 | 3.9 | juv./adults | USA | Sacramento-San Joaquin Delta | 9669 |
| zooplankton | 86 | 3.1 | recruits/juv. | USA | Sacramento-San Joaquin Delta | 9669 |