Marriage preferences of women and men from among the representatives of the indigenous peoples of the Lower Amur and Sakhalin

The analysis of statistical, archival materials and literature allowed us to draw the following conclusions. If in the second half of the XIX century among all the indigenous peoples of the Lower Amur and Sakhalin (for example, the Nivkhs, Evenks, Uilta (Oroks)) same-ethnic marriages prevailed, then from the second half of the XX century mixed marriages began to prevail, women more willingly preferred mixed marriages. Besides, if previously interethnic marriages were registered mainly between representatives of different indigenous minorities of the North, then now marriages with the Slavic population predominate. The reasons for this phenomenon are: a large percentage of consanguineous ties within ethnic groups, an unfavorable sex ratio (there are more women than men, especially in reproductive age), and the reluctance of men to do anything, which further contributes to the search for marriage partners outside their ethnic group.