TY JOUR TI DYNAMICS OF CATCH AND BIOLOGICAL CHARACTERISTICS OF BLACKBACK SHADS IN THE VOLGA-CASPIAN FISHERIES SUBAREA IN MODERN CONDITIONS (THE VOLGA RIVER AND ITS STREAMS) KW fishing KW number KW catches KW dynamics of progress KW spawning stock KW biological characteristics JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Voinova, T.. PY 2013 IS 2013 PB Astrakhan State Technical University