%0 Journal Article %T Structure of poaching sturgeon species in the Irtysh River in 2013-2020 (according to ichthyologic examinations) %A Chemagin, A.. %K ichthyologic examination, Siberian sturgeon, sterlet, quantity, mass, the Irtysh River, the Ob-Irtysh basin %J Vestnik of Astrakhan State Technical University. Series: Fishing industry %D 2021 %N %P 6 %I Astrakhan State Technical University