| Citation | Zimmerman, M.P., 1999, Food habits of smallmouth bass, walleyes, and northern pikeminnow in the lower Columbia river basin during outmigration of juvenile anadromous salmonids.. Trans. Am. Fish. Soc. 128(6):1036-1054. |
| Ref. | 42746 Zimmerman, M.P., 1999 |
| Page | 1044 |
| Named Used as Valid | Ptychocheilus oregonensis |
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