TY JOUR TI RESEARCH OF NATURAL FISH REPRODUCTION IN THE URAL RIVER IN THE WEST KAZAKHSTAN REGION OF THE REPUBLIC OF KAZAKHSTAN KW spawning KW conditions KW water content KW spawning grounds KW fish fry KW concentration KW abundance dynamics KW hydrological indicators JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Kim, A.. AU Asylbekova, S.. AU Kadimov, E.. PY 2018 IS 2018 PB Astrakhan State Technical University