%0 Journal Article %T Changes of the heavy metals content in Perca fluviatilis liver %A Devyatkin, G.. %A Kobceva, A.. %K Republic of Khakassia, Sorokaozerki tract, Bolshoe Lake, Stolbovoe Lake, perch, morphophysiological indicators, liver index, heavy metals %J Vestnik of Astrakhan State Technical University. Series: Fishing industry %D 2023 %N 2023 %P 5 %I Astrakhan State Technical University