TY JOUR TI GONADOSOMATIC INDEX OF STURGEON, BELUGA AND STELLATE STURGEON DURING THEIR LIFE PERIOD IN THE RIVERS KW sturgeon KW beluga KW stellate sturgeon KW river Volga KW gonadosomatic index KW morphophysiological parameters JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Sohou, Z.. AU Sohou, Z.. AU Sohou, Z.. AU Sohou, Z.. AU Sohou, Z.. PY 2012 IS 2012 PB Astrakhan State Technical University