| Main Ref. | Baldwin, B.C., S.B. Yamada and H. Metcalf, 1992 | ||
| Predator stage | juv./adults | ||
| Food I | zoobenthos | ||
| Food II | mollusks | ||
| Food III | gastropods | ||
| Food group | Littorinidae | Prey Stage/Part | juv./adults |
| Food name | Littorina sitkana | ||
| Commonness | |||
| Country | USA | ||
| Remark | Average predation rates on 4 sites in San Juan Island WA, USA ranged from 7-77% per day. | ||