| Αναφορά | Nyberg, P., 1979, Production and food consumption of perch, Perca fluviatilis L., in two Sweddish forest lakes.. Inst. Freshwat. Res. Drottningholm, Rep. No. 58:140-157. |
| Αναφ. | 11285 Nyberg, P., 1979 |
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| Named Used as Valid | Perca fluviatilis |
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