Observations of the Walrus (Odobenus rosmarus) in the Barents, Kara, and Laptev Seas in 2010-2012

Data on walrus (Odobenus rosmarus) sightings during four scheduled cruises of the research expedition vessel Mikhail Somov in the Barents, Kara, and Laptev seas (August–November, 2010; September–October, 2011; November–December 2011; and July–October, 2012) and during an expedition on the Polyaris motor ship in August–September, 2012, are presented. The data collected support and expand the existing knowledge on the distribution and abundance of the Atlantic and Laptev walrus subspecies.