Never in my lifetime did I expect to see this happen. It is going to get worse....
Walrus Calves Stranded by Melting Sea Ice
Scientists have reported an unprecedented number of unaccompanied and possibly abandoned walrus calves in the Arctic Ocean, where melting sea ice may be forcing mothers to abandon their pups as the mothers follow the rapidly retreating ice edge north.
Nine lone walrus calves were reported swimming in deep waters far from shore by researchers aboard the U.S. Coast Guard icebreaker Healy during a cruise in the Canada Basin in the summer of 2004. Unable to forage for themselves, the calves were likely to drown or starve, the scientists said.
Lone walrus calves far from shore have not been described before, the researchers report in the April issue of Aquatic Mammals. The sightings suggest that increased polar warming may lead to decreases in the walrus population.
“We were on a station for 24 hours, and the calves would be swimming around us crying. We couldn’t rescue them,” said Carin Ashjian, a biologist at Woods Hole Oceanographic Institution and a member of the research team.
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“If walruses and other ice-associated marine mammals cannot adapt to caring for their young in shallow waters without sea-ice available as a resting platform between dives to the sea floor, a significant population decline of this species could occur,” the research team wrote. The lead author of the study is Lee W. Cooper, a biogeochemist at the University of Tennessee.
A walrus pup alone in the Arctic Ocean, one of nine calves seen swimming far from shore and presumed to have died. (Photo by Carin Ashjian, Woods Hole Oceanographic Institution)
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