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The elements content (Fe, Mn, Al, Zn, Cu, Cr, Pb, Ni, Cd, Ba, Sr, V) in the tissues of fish (muscles, liver, gills) of various trophic level (bream (Abramis brama) and a pike perch (Zander lucioperca) from the Sheshma River (the Middle Volga Region, Russia) is given. A lot of different technologies, including solvent cyclic steam-assisted gravity drainage and cyclic steam stimulation, are used for oil production in the catchment area of the Sheshma River. It was shown that both species of fish accumulated Pb (musc...