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On microelements composition of European grayling Thymallus thymallus (Linnaeus, 1758) of Kosva River (basin of Middle Kama River)


The valuation of the content of 24 microelements in the tis-sues and organs of the European grayling and in the ground of the Kosva River (the basin of the Middle Kama River) is given. It is established, that in 10–15 years after the stopping of the draining of mine water off to the Kosva River the maximum content in organs and tissues of the European grayling of described reservoir is characteristic for manganese, zinc, strontium and barium, concentrations of nickel, cobalt, chromium, copper, lead, silver and other elements are significantly lower, which is typical for graylings. The exception is the group of small grayling specimens of the Kosva River, for which high concentrations of a number of elements in the muscle tissue is noted.


microelements composition; European grayling; Thymallus thymallus; Kosva River; Middle Kama River

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