TY JOUR TI Monitoring sanitary state of perch (Perca fluviatilis L.) in open and closed water bodies of Volga basin KW parasitological inspection KW common perch KW open and closed water bodies JO Vestnik of Astrakhan State Technical University. Series: Fishing industry AU Stepanenko, E.. AU Kanieva, N.. AU Grigoryeva, T.. PY 2020 IS PB Astrakhan State Technical University