TY JOUR TI INTEGRATED ASSESSMENT OF THE ECOTOXICOLOGICAL STATE OF RESERVOIRS IN THE MIDDLE AND LOWER VOLGA BY METHODS OF BIODIAGNOSIS AND ANALYSIS OF HEAVY METALS IN BOTTOM SEDIMENTS KW biomarkering KW biotesting KW oxidative stress KW common bream KW reservoirs JO Transactions of Papanin Institute for Biology of Inland Waters RAS AU Chuyko, G.M. AU Podgornaya, V.A. AU Tomilina, I.I. AU Lozhkina, R.A. AU Zakonnov, V.V. AU Gapeeva, M.V. PY 2022 IS 0 PB Papanin Institute for Biology of Inland Waters Russian Academy of Sciences