TY JOUR TI Summer plankton communities of the Northern Dvina River and its tributaries KW phytoplankton KW zooplankton KW species diversity KW indices KW surface water quality JO Proceedings of the Komi Science Centre of the Ural Division of the Russian Academy of Sciences AU Makedonskaya, I.Y. AU Medvedeva, E.V. AU Otchenash, N.G. PY 2022 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"