%0 Journal Article %T Influence of environmental factors on emergence and spread of helminthoses in perch (Perca fluviatilis L.) %A Stepanenko, E.. %A Volkova, I.. %A Kanieva, N.. %A Popova, K.S. %K helminths, parasite fauna, perch, pollution of water bodies, eustrongylids, metacercariae, extensiveness and intensity of invasion %J Vestnik of Astrakhan State Technical University. Series: Fishing industry %D 2022 %N %P 7 %I Astrakhan State Technical University