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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Print: 0018-8166
ISSN Online: 1943-5991

Hydrobiological Journal

DOI: 10.1615/HydrobJ.v43.i5.60
pages 87-90

Assessment of the Current Trophic State of Lake Onega by Primary Production of Phytoplankton

Ye. V. Tekanova
Northern Water Problem Institute, Karelian Research Centre of the RAS, Petrozavodsk, Russia
T. M. Timakova
Northern Water Problems Institute, Karelian Research Centre of the Russian Academy of Sciences Petrozavodsk, Russia


The level and dynamics of phytoplankton primary production in limnetic heterogenic ecosystem of Lake Onega are shown. The causes of increasing primary production in some areas of the lake are discussed. The trends toward spreading of eutrophication over the water body area are established. There is considered the current trophic status of the lake.

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