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Rare Macroscopic Algae Species In The Pechora And Vychegda River Basins (North-Eastern Part Of European Russia)

Abstract Ten rare species of macroscopic algae were found in freshwater ecosystems of the Pechora and Vychegda River basins, belonging to four divisions: Cyanoprokaryota - 1 species, Rhodophyta - 3, Chrysophyta - 1, Charophy-ta - 5. Some of these were included in the regional Red Data Books of Nenets Autonomous District and Komi Republic, others were recommended to be included. Areas of distribution were marked; algae development conditions and limiting factors were described.