Student, Professor Department of Ecology and Nature Management, Volgograd State University

Prosp. Universitetskij, 100, 400062 Volgograd, Russian Federation

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Candidate of Biology, Associate Professor Department of Ecology and Nature Management, Volgograd State University

Prosp. Universitetskij, 100, 400062 Volgograd, Russian Federation

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Abstract. The purpose our ecological and research is the research of one of transit reservoirs as a part of the Krasnoslobodsky water path of a northern part of the Volga-Akhtubinsk floodplain, regarding assessment of its ecological state. In a research bioindication methods, organoleptic, determination of amount of dissolved oxygen in water, definition of the PH environment, experimental definition dry were applied. In work the results of field and laboratory researches reflecting ecological and biological conditions of a reservoir of an erik the Soudomoyka during the period from March, 2017 to February, 2018 are presented. Therefore conclusions that the reservoir is polluted as Synedra, Spirogyra, Mougeotia number prevails as a part of algal flora were received. Water quality according to estimated data also excludes use of water of an erik the Soudomoyka by residents of nearby settlements for the economic and household purposes, the reservoir also does not meet the requirements for a sanitary state cannot be used in the recreational purposes.

Keywords: Volga-Akhtuba floodplain, erik the Soudomoyka, water pollution, ecological assessment, bioindication.