Keyword: «reproduction»

Currently, in the current conditions with aquatic biological resources, the only reasonable way is to carry out a whole range of measures aimed at suppressing illegal fishing, protecting river sections with wintering pits and spawning areas, and activating measures to reproduce valuable fish species. In this paper, using the example of Tobolsk and the Tobolsk district, the issues of protection and reproduction of fish resources are considered. The collection of material for the study was carried out in the following areas: protection of aquatic biological resources, study of the peculiarities of reproduction of sturgeon and white fish at fish farms.

The work is devoted to a comparative analysis of the parameters of reproduction among the peoples of the Kemerovo Region-Kuzbass – Russians, Tatars, Shors. In the populations of Shors and Russians, interethnic and intergenerational differences in age (length of reproductive periods) and vital (pregnancy outcomes) characteristics were revealed. In relation to Shors and Russians living in the Tashtagol district (ethnic territory of compact settlement of Shors), a convergence of reproductive attitudes is observed. The examined Tatars – descendants of immigrants from the Volga region – showed a pronounced uniqueness of the parameters under study. The novelty of the study is seen in the fact that for the first time a comparative assessment of the parameters of reproduction and reproductive attitudes of various ethnic groups of the Kemerovo region, related to the alien old-timer population (Russians, Tatars) and the indigenous autochthonous population (Shors) is given.