This web application uses cookies and other tracking technologies to ensure you get the best experience.

SC/67B/SDDNA/03 

Full screen preview

Resource downloads

File information File dimensions File size Options

Download this file

1.8 MB Download
Resource details

Resource ID

9288

Access

Open

Title

Genetic data reveal mixed-stock assemblages of gray whales (Eschrichtius robustus) in both the Eastern and Western Pacific Ocean

Document Number

SC/67B/SDDNA/03

Author

Anna Brunche-Olsen, Jorge Urban R., Vladimir V. Vertyankin, Celine A. J. Godard-Codding, John W. Bickham and J. Andrew DeWoody

Publication Year

2018

Publisher

International Whaling Commission

Abstract

Western gray whales are critically endangered whereas the Eastern gray whale is relatively common. Both were severely affected by Holocene environmental changes and commercial whaling, but gray whales in the Eastern Pacific now outnumber their Western counterparts by more than 100x. Herein, we investigate the genetic diversity and population structure within the species. Results indicate the gray whale gene pool is differentiated into two lineages, that each lineage contains similar levels of genetic diversity, and that both our Eastern and Western geographic samples were derived from mixed-stock aggregations composed of two distinct lineages. Overall, our data are inconsistent with the idea that the gray whale gene pool consists of a single population at equilibrium.

Search for similar resources

Remove