Influence of historical exploitation and recovery of biological resources on contemporary status of Margaritifera margaritifera L. and Salmo salar L. populations in Northwestern Russia
The influence of the historical exploitiation and recovery of biological resources on populations of freshwater pearl mussel and salmon was studied in the Kozha river (Onega River Basin). The freshwater pearl mussel was characterized by a low population density (0.09 ind./m 2 , on the average) and n...
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Veröffentlicht in: | Biology bulletin reviews 2012-11, Vol.2 (6), p.460-478 |
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Hauptverfasser: | , , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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