[Modeling the dynamics of the effective population size of the Okhotsk Sea pollock in the Holocene era on the basis of genetic variability in the Nd2 and Cytb mtDNA loci].

We used Bayesian statistics to investigate the demographic history of the walleye pollock in the sea of Okhotks based on polymorphisms of sequences of the Nd2 and Cytb mitochondrial genes. We determined the average age for the Most Recent Common Ancestor (MRCA) as 44.1 ± 2 and 52.6 1.3 thousand years, respectively, for Nd2 and Cytb. These findings suggest that demographic expansion of the Okhotsk Sea pollock began 10-12 thousand years ago, which coincides with the period of global changes in the sea level during the Late Pleistocene-Early Holocene eras.