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Annual variation ; Biocenosis ; Biological indicator ; Dammed lake ; Ecology ; European part of Russia ; Hydrobiology ; Lake ; Phytoplankton ; Tver ; Zooplankton
(supprimer)
Annual variation ; Biocenosis ; Biological indicator ; Dammed lake ; Ecology ; European part of Russia ; Hydrobiology ; Lake ; Phytoplankton ; Tver ; Zooplankton