TY JOUR TI ASSESSMENT OF NUTRIENT LOAD AND EFFICIENCY OF THE RUSSIAN STURGEON FARMING IN BRACKISH WATER REGIME IN A CLOSED WATER SUPPLY SYSTEM KW recircular system KW sturgeon breeding KW salinity KW Russian sturgeon KW hydrochemical parameters KW fish-breeding indicators JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Levina, O.. AU Metallov, G.. AU Ponomarev, S.. PY 2017 IS PB Astrakhan State Technical University