%0 Journal Article %T Biological factors of water quality in a mesotrophic ecosystem %A Sadchikov, A.P. %A Ostroumov, S.A. %K water quality, phytoplankton, algae, bacteria, 14C-chlorella hydrolyzate, heterotrophic activity, cyanobacteria, dissolved organic matter, DOM %J Fisheries %D 2021 %N 2021 %P 3 %I FSBI "TSUREN"