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Molluscs are frequently used as a biomonitor of heavy metals (HMs) pollution of sea water and fresh water. This is because mollusks are very sensitive to sudden change of abiotic factors, they have a high rate of metals bioaccumulation, and there is a correlation between HMs concentration in molluscs and water and bottom sediment. Gastropods are important for biomonitoring of fresh surface waters. ItпїЅs well known that gastropods as biomonitor organisms have several advantages such as a reasonable size for analys...

This study has focused on macrophytes in eight South Urals lakes such as Bolshoye Miassovo, Maloye Miassovo, Bolshoy Ishkul, Bolshoy Tatkul, Argayash, Savelkul, Baraus and Ilmenskoye. Bolshoye Miassovo, Bolshoy Ishkul, Bolshoy Tatkul, Argayash, Savelkul, Baraus are on the territory of the Ilmen State Reserve and may be considered conventionally undisturbed. Maloye Miassovo and Ilmenskoye being outside the Reserve are under the human impact of an additional eutrophic factor as there are villages and resorts in the ...