Composition and Content of Fatty Acids in Muscle Tissue of the Potanin Altai Osman Oreoleuciscus potanini (Cypriniformes, Actinopterigii) from Mongolian Reservoirs

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Resumo

The composition of fatty acids in the muscle tissue of the unique Central Asian carp-like fish of the Potanin Altai osman Oreoleuciscus potanini was studied for the first time. The populations of these fish in the reservoirs of the semi-desert zone (Durgun and Taishir) during the period of their formation are considered. It was shown that the content of eicosapentaenoic (EPA) and docosahexaenoic (DHA) acids in O. potanini corresponds to the median value of this value in the order Cypriniformes. It has been established that the basis of the food web of the herbivorous form of this species consists of microalgae: diatoms, euglens and, possibly, chrysophytes, as well as bacteria. At the same time, the levels of bacterial biomarkers, 15–17BFA and 17:0 were significantly higher in fish in the Durgun reservoir, and the level of EPA (diatom biomarker) in O. potanini in the Taishir reservoir. The established higher values of the heavy nitrogen isotope content in the muscles of O. potanini from the Taishir reservoir are most likely associated with not yet formed benthic communities and with the incomplete diversification of the river form of the Potanin Altai Osman into lacustrine forms.

Sobre autores

Yu. Dgebuadze

Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences

Autor responsável pela correspondência
Email: yudgeb@yandex.ru

Academician of the RAS

Rússia, Moscow

N. Sushchik

Federal Research Center “Krasnoyarsk Science Center,” Siberian Branch, Russian Academy of Sciences; Siberian Federal University

Email: yudgeb@yandex.ru

Corresponding Member of the RAS, Institute of Biophysics

Rússia, Krasnoyarsk; Krasnoyarsk

B. Mendsaikhan

Institute of Geography and Geoecology of Mongolian Academy of Sciences

Email: yudgeb@yandex.ru
Mongólia, Ulanbaatar-15170

D. Altansukh

Western Regional Branch of National University of Mongolia

Email: yudgeb@yandex.ru
Mongólia

A. Emelianova

Federal Research Center “Krasnoyarsk Science Center,” Siberian Branch, Russian Academy of Sciences

Email: yudgeb@yandex.ru

Institute of Biophysics

Rússia, Krasnoyarsk

M. Gladyshev

Federal Research Center “Krasnoyarsk Science Center,” Siberian Branch, Russian Academy of Sciences; Siberian Federal University

Email: yudgeb@yandex.ru

Corresponding Member of the RAS

Rússia, Krasnoyarsk; Krasnoyarsk

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