TY JOUR TI PROBLEMS AND WAYS TO REDUCE ANTHROPOGENIC IMPACT ON WATERS OF THE WORLD OCEAN KW pollution of the waters of the World Ocean KW the World Ocean ecosystems KW contamination of the surface with a thin oil film KW toxic compounds of heavy metals KW ballast water KW ballast water treatment systems KW alien aquatic organisms KW pathogens organisms JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Arabova, Z.. AU Arabov, M.. AU Prochorov, E.. AU Saadati, P.. PY 2019 IS PB Astrakhan State Technical University