TY JOUR TI ECOLIGICAL APPROACH IN IMPROVING EFFICIENCY OF INDUCTRIAL METHOD OF OBTAINING AQUACULTURE PRODUCTS KW artificial ecosystems KW sturgeon KW clary catfish KW tilapia KW hydroponics KW bacterial preparation KW nitrogenous substances KW product quality JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Gridina, T.. AU Geraskin, P.. PY 2021 IS 2021 PB Astrakhan State Technical University