| Zitat | Ritchie, B.J. and P.J. Colby, 1988, Even-odd year difference in walleye year-class strength related to mayfly production.. N. Am. J. Fish. Manage. 8:210-215. |
| Ref. | Ritchie, B.J. and P.J. Colby, 1988 |
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| Named Used as Valid | Perca flavescens |
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