Huvudföda | Procent |
Trofisk nivå (y) |
Studerat utvecklingsstadium | Land | Observationsplats | Ref. |
---|---|---|---|---|---|---|
zooplankton | 87 | 3.2 | juv./adults | USA | Sacramento-San Joaquin Delta | 9667 |
zoobenthos | 96 | 3.5 | recruits/juv. | USA | lower Hudson River estuary, 1977 | 13353 |
zooplankton | 60 | 3.5 | juv./adults | USA | Middle Atlantic, S. New England, Gulf of Maine, inshore north of Cape Hatteras | 37512 |