Genetic evidence of a northward range expansion in the eastern Bering Sea stock of Pacific cod.

ABSTRACT: Poleward species range shifts have been predicted to result from climate change, and many observations have confirmed such movement. Poleward shifts may represent a homogeneous shift in distribution, seasonal northward movement of specific populations, or colonization processes at the poleward edge of the distribution. The ecosystem of the Bering Sea has been changing along with the climate, moving from an arctic to a subarctic system. Several fish species have been observed farther north than previously reported and in increasing abundances. We examined one of these fish species, Pacific cod, in the northern Bering Sea (NBS) to assess whether they migrated from another stock in the eastern Bering Sea (EBS), Gulf of Alaska, or Aleutian Islands, or whether they represent a separate populati

SUBMITTER: Spies I 

PROVIDER: S-EPMC6976961 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature