The Rybinsk Reservoir was covered with spirogyra from the north side


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The Rybinsk Reservoir was covered with spirogyra from the north side
Source
The Rybinsk Reservoir was covered with spirogyra from the north side - Vologodskaya Oblast, Spirogyra, Ecology, Nature, Video, Longpost
Video Vologodskaya Oblast Nature Spirogyra Ecology
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