%0 Journal Article %T The content of mercury and lead in the feed base of valuable fish species of the Caspian Sea %A Ershova, T.S. %A Chaplygin, V.A. %A Zaitsev, V.F. %A Khursanov, A.S. %A Shaboyants, N.G. %K heavy metals, accumulation, hydrobionts, invertebrates of the Caspian Sea %J Fisheries %D 2021 %N 2021 %P 4 %I FSBI "TSUREN"