TY JOUR TI STATE OF POPULATION OF PIKE PERCH OF THE LOWER FLOW OF THE URAL RIVER KW pike perch KW the Ural KW fishery KW spawning KW size-weight parameters KW age-related groups KW sexual composition KW fertility KW fatness JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Kuzmenko, S.. AU Sokolsky, A.. AU Nevalennyy, A.. AU Popov, N.. PY 2018 IS PB Astrakhan State Technical University