No abstract

Gmo-С86) в выборках минтая из Охотского моря. Показано, что наиболее дифференцирующими для охотоморского минтая являются локусы Gmo-C86 и Gma106. Выявлен высокий уровень генетической изменчивости особей в пределах исследованных выборок. Кластеризация выборок носит случайный характер. Корреляции между количественными оценками генетических различий выборок F st и географическими расстояниями между местами взятия проб не обнаружено. По результатам проведенного исследования не подтвердилась гипотеза о том, что нерестовым районам соответствуют отдельные популяции.

The paper presents results of the study of genetic variability in Bolshaya River sockeye salmon by 7 microsatellite loci. A complex hierarchical organization is shown for the stock in the Bolshaya River basin. Different temporal groupings (early and late races in Nachikinskoe Lake) and ecological forms (riverine and lakustrine) were identified in this locality based on the analysis of microsatellite variability data.

Data on the regional composition of marine mixed aggregations of young pink salmon in the Okhotsk Sea basin during the post-catadromic migrations in 2021 are presented. The high probability of significant prevalence of spawning returns of southern stock complex of pink salmon and sharp decrease of their returns to the northern regions in 2022 are revealed. Identification estimates of juvenile fish obtained from RFLP analysis of mtDNA and analysis of SNP-loci allelic variability were correlated with the values of actual regional catches and spawning runs. A close correspondence between calculated estimates and actual data for the northern herd complex was noted. Results of the genetic identification were somewhat underestimated for the Sakhalin- Kuril Region and overestimated for the southern part of the continental coast of the Sea of Okhotsk.

This book that contains 38 research articles on marine ecology of Pacific salmon and steelhead trout, is dedicated to the International Year of the Salmon and is the first scientific publication that contributes to the library of the project.