| Zitat | Backiel, T. and J. Zawisza, 1988, Variations of fecundity of roach (Rutilus rutilus) and perch (Perca fluviatilis) in polish lakes.. Polskie Archiwum Hydrobiologii 35(2):205-225. |
| Ref. | Backiel, T. and J. Zawisza, 1988 |
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| Named Used as Valid | Perca fluviatilis |
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