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Tracking Pacific Walrus: Expedition to the Shrinking Chukchi Sea Ice

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Detailed Description

Summer ice retreat in the Chukchi Sea between Alaska and Russia is a significant climate change impact affecting Pacific Walruses, which are being considered for listing as a threatened species. This twelve minute video follows walruses in their summer sea ice habitat and shows how USGS biologists use satellite radio tags to track their movements and behavior. The information identifies areas of special importance to walruses during sparse summer sea ice and as human presence increases in the region from oil drilling and activities such as shipping and tourism now possible with less ice.




Public Domain.