TY JOUR TI BIOENGINEERING TECHNOLOGY OF REDUCTION OF POLLUTION OF FISHERY PONDS KW pollution of water bodies KW sewage water KW cleaning devices KW higher aquatic vegetation KW bioengineering technology JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Egorov, I.. AU Zolotokopova, S.. AU Egorova, V.. PY 2014 IS 2014 PB Astrakhan State Technical University