%0 Journal Article %T INTRA-ANNUAL VARIABILITY OF PLANKTON COMMUNITIES IN THE ESTUARY REGION OF THE SEVERNAYA DVINA RIVER %A Makedonskaya, I.Y. %A Medvedeva, E.V. %A Otchenash, N.G. %A Studenov, I.I. %A Tortsev, A.M. %A Konina, Y.M. %K Northern Dvina, phytoplankton, zooplankton, abundance, biomass, Shannon index, saprobity index %J Transactions of Papanin Institute for Biology of Inland Waters RAS %D 2023 %N 0 %P 15 %I Papanin Institute for Biology of Inland Waters Russian Academy of Sciences