TY JOUR TI CURRENT STATE OF PLANKTON COMMUNITIES OF THE LOWER VYCHEGDA RIVER AND ITS TRIBUTARIES KW phytoplankton KW zooplankton KW species diversity KW taxonomic groups KW indices KW Vychegda river basin JO Transactions of Papanin Institute for Biology of Inland Waters RAS AU Medvedeva, E.V. AU Otchenash, N.G. AU Makedonskaya, I.Y. PY 2022 IS 0 PB Papanin Institute for Biology of Inland Waters Russian Academy of Sciences