| Main Food | Percent |
Trophic Level (y) |
Predator Life Stage | Country | Locality | Ref. |
|---|---|---|---|---|---|---|
| nekton | 48 | 4.0 | adults | USA | Bear Creek Minnesota, 1985-1986 | 26273 |
| zoobenthos | 34 | 3.1 | adults | USA | Juniata River, Pennsylvania, 1990 | 33056 |
| zoobenthos | 38 | 3.3 | adults | USA | Juniata River, Pennsylvania, 1990 | 33056 |
| nekton | 34 | 4.3 | juv./adults | USA | John Day Reservoir, Columbia River Basin, April-August 1983-1986 | 26982 |
| nekton | 45 | 3.8 | juv./adults | USA | Upper Niagara River, New York, 1977 | 30609 |
| nekton | 87 | 4.3 | juv./adults | USA | Upper Niagara River, New York, 1977 | 30609 |
| zoobenthos | 71 | 3.5 | juv./adults | USA | Upper Niagara River, New York, 1977 | 30609 |
| zoobenthos | 17 | 3.2 | juv./adults | USA | Juniata River, Pennsylvania, 1990 | 33056 |
| nekton | 41 | 3.7 | recruits/juv. | USA | Upper Niagara River, New York, 1977 | 30609 |
| nekton | 70 | 4.1 | recruits/juv. | USA | Upper Niagara River, New York, 1977 | 30609 |
| zoobenthos | 45 | 3.4 | recruits/juv. | USA | Upper Niagara River, New York, 1977 | 30609 |
| zoobenthos | 68 | 3.2 | recruits/juv. | USA | Bear Creek Minnesota, 1985-1986 | 26273 |
| zoobenthos | 58 | 3.5 | adults | USA | Juniata River, Pennsylvania, October 1989. | 42157 |