Morphobiological features of siberian grayling (Thymallus arcticus, Thymallidae) of the Polar Urals

Zinovjev E.A., Bogdanov V.D.

Summary

Characteristic of a number of populations of grayling of Arctic Urals is presented in the article. Authors described the features of the external appearance of grayling, shows the main diagnostic features of the counting and plastic indexes, marked many scales northern populations of grayling, but also found a mosaic manifestation of this trait. Most of the parameters characterize the grayling of the Polar Urals as a subspecies of Thymallus arcticus, although marked, and interpopulation differ in mean values of indicators morphotype in the region. Basic elements of grayling biology are: population structure, age, growth, nutrition, reproduction.

Key words: West-Siberian grayling, taxonomy, ecology, growth, age, nutrition, reproduction.

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Author affiliation

Zinovjev Evgeny A., D.Sc. in Biology, professor, head of the department of vertebrate zoology of the Perm State National Research University; 15, Bukireva st., Perm, 614990; ph.: (342) 2396228; zoovert@psu.ru.

Responsible for correspondence with the editorial board: Bogdanov Vladimir D., Corresponding Member of RAS, professor, deputy director of the Plant and Animal Ecology Institute; 202, 8 Marta st., Ekaterinburg, 620144; bogdanov@uran.ru

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