Carcasses of dead walruses spotted on Alaska coast

(AP) -- Up to 200 dead walruses have been spotted on the shore of Chukchi Sea on Alaska's northwest coast.

Federal wildlife researchers from the U.S. Geological Survey on their way to a walrus tagging project spotted 100 to 200 of the animals' carcasses near Icy Cape about 140 miles southwest of Barrow.

They report the dead appeared to be mostly new calves or yearlings. However, neither the age of the dead animals nor the cause of death is known, said Bruce Woods, spokesman for the U.S. Fish and Wildlife Service.

"It's just too early to say until we can get someone on the ground," Woods said.

About 3,500 walruses were reported last week at the Icy Cape haulout site, where walruses rest from feeding forays.

Young animals can be crushed in stampedes when a herd is startled by a polar bear, human hunters or even a low-flying airplane.

This is the second time in three years that walruses have congregated in large numbers on the Alaska shore.

Walrus cannot swim indefinitely and historically have used sea ice as a platform for diving in the Bering and Chukchi seas for clams and other food on the ocean floor.

In recent years, however, sea ice has receded far beyond the outer continental shelf, forcing walruses to choose between riding the ice over waters too deep to reach clams or onto shore.

Environmental groups calling for measures to slow greenhouse gas emissions say walruses gathering in herds on shore are evidence that global warming is alerting the Arctic environment and forcing major changes in wildlife behavior.

The National Snow and Ice Data Center at the University of Colorado announced Thursday that for 2009 shrunk to its third lowest level since satellite measurements began in 1979. The record low was set in 2007 and ice last year melted to the second lowest level on record.

Walruses for years came ashore intermittently in Alaska during their fall southward migration but not so early and not in such numbers.

Herds were in the tens of thousands at some locations on the Russian side of the Chukchi Sea. Russian biologists in 2007 reported 3,000 to 4,000 walruses died out of a population of perhaps 200,000, mostly young animals crushed in stampedes.

©2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.


Explore further

Walruses congregate on Alaska shore as ice melts

Citation: Carcasses of dead walruses spotted on Alaska coast (2009, September 17) retrieved 19 July 2019 from https://phys.org/news/2009-09-carcasses-dead-walruses-alaska-coast.html
This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.
0 shares

Feedback to editors

User comments

Sep 17, 2009
In case it is not clear to people from this article, the ice has been increasing in size since the low in 2007. 2008 had more ice than 2007 and 2009 had more than 2008. http://news.bbc.c...1953.stm

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more