Hydroecological characteristics of the parts of the dnepr river in the areas of winter pits location

The hydrogeological conditions of the river sections are presented the Dnieper river is located in the areas of wintering pits within the territorial borders of the Vitebsk, Mogilev and Gomel regions of the Republic of Belarus. The hydrochemical regime of wintering pits is considered with an assessment of gas and temperature regimes. In general, the water of the studied wintering pits in the under-ice and ice-free periods in terms of salt composition corresponds to the eutrophic type of water bodies, with a satisfactory gas regime, and is suitable for fisheries. The ichthyofauna of the river was analyzed. Dnepr of the upper, middle and lower sections of the river, the percentage of fish families prone to occurrence in winter was noted — cyprinids — 70.4 %, perch — 21.3 %, pike — 4.7 %, sturgeon and cod — 3.6 %. Invertebrates, gastropod molluscs, were identified, which may be bioindicators of the hydroecological state of the watercourse. An assumption was made about the hydroecological state of the river Dnepr on the studied aspects.

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