%0 Journal Article %T RESULTS OF EXPERIMENTAL HYDROACOUSTIC RESEARCHES ON EVALUATION OF SPATIAL DISTRIBUTION OF STURGEON UNDERYEARLINGS IN SHALLOW WATERS OF THE NORTHERN CASPIAN IN 2017 %A Balchenkov, I.. %A Pomogaeva, T.. %K hydroacoustic studies, sturgeon underyearlings, Northern Caspian, density of schooling fish, biomass, quantity, echogram, echolocation %J Vestnik of Astrakhan State Technical University. Series: Fishing industry %D 2019 %N %P 5 %I Astrakhan State Technical University