TY JOUR TI THE CURRENT STATE OF PLANKTON COMMUNITIES OF THE NIKOLSKY ESTUARY OF THE SEVERNAYA DVINA RIVER IN 2022 KW algocenosis KW phytoplankton KW zooplankton KW species diversity KW Shannon index KW Menhinik index KW Nikolskoye estuary JO Transactions of Papanin Institute for Biology of Inland Waters RAS AU Medvedeva, E.V. AU Gorenko, V.A. AU Zmetnaya, M.I. PY 2023 IS 0 PB Papanin Institute for Biology of Inland Waters Russian Academy of Sciences