TY JOUR TI CHANGE OF PHISIOLOGICAL ACTIVITI OF DAPHNIA MAGNA, STRAUS UNDER THE INFLUENCE OF DIFFERENT FACTIONS OF OIL PRODUCTS KW water pollution KW hydrocarbons KW fractions of petroleum products KW bioassay KW test organism KW Daphnia magna KW toxic effect KW harmless concentration KW lethal concentration JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Nasibulina, B.. AU Kamakin, A.. AU Fyodorova, I.. AU Fomicheva, G.. PY 2017 IS 2017 PB Astrakhan State Technical University