One walrus whisker is about 10 times as strong as a dog/cat whisker. In spring of 2006, a range-wide su rvey of the Pacific walrus (Odobenus rosmarus divergens) was conducted as a collaboration among the U. S. Fish and Wildlife Service, U.S. Geological Survey, In 1909, a walrus hide weighing 500 kg (1,100 lb) was collected from an enormous bull in Franz Josef Land, while in August 1910, Jack Woodson shot a 4.9-metre-long (16 ft) walrus, harvesting its 450 kg (1,000 lb) hide. Fay, F. H. “Ecology and Biology of the Pacific Walrus, Odobenus rosmarus divergens Illiger.” United States Fish and Wildlife Service, North American Fauna 74 (1982): … Many walruses are found in the Siberian Sea, Laptev Sea, Wrangel Island, south to Unimak Island, west of Alaskan Peninsula, and the eastern Kara Sea. Mating Season: December to March With more vessels in Arctic waters, the threat of an oil spill impacting wildlife seems all but inevitable and more ships increase noise pollution, ship strikes, pollution from ballast water and entanglement in marine debris. While climate change will continue to make life harder for walruses in the Arctic, Defenders is working to protect habitat, bolster spill response, mitigate climate change and defend the Marine Mammal Protection Act. Although capable of diving to deeper depths, Pacific walruses for the most part are found in waters of 100 m or less, possibly because of higher productivity of their benthic foods in the shallower water. Fedoseev, G.A., Dynamics of the range and ecological differentiation of the Pacific walrus populations, Ekologiya, 1982, no. The Pacific Walrus inhabits the area from the eastern East Siberian Sea through the Chukchi Sea all the way to the western Beaufort Sea and southward to the waters of the Bering Sea. Walrus staples include clams, mussels and other benthic (bottom dwelling) organisms that they locate using their whiskers. Walruses feed on the ocean floor in the relatively shallow waters of the continental shelf, where the sea ice itself sustains a rich food web. As a result of less sea ice, walrus are changing their behavior. A walrus moves its snout through bottom sediment to find food. Habitat. Although all of these factors have potential to impact Pacific walruses in the future, we anticipate that future activities will be well regulated, and that any future impacts will be relatively localized. Pacific Walrus (Odobenus romarus divergens) are the largest of the of the Pinnipeds “fin footed” family of marine mammals. Range Map Distribution Map ... Pacific walrus breed in the winter between December and March. Male Pacific walrus are slightly larger, with longer tusks. Walruses make an interesting case study in this time of rapid climate change. Walruses consume a wide range of organisms, from small crustaceans to Washington, DC 20036 It is a keystone species in Arctic marine ecosystems. Females will leave their young on the sea ice while they forage, then haul out to nurse their calves. Walruses follow the seasonal patterns of ice formation and retreat in the Pacific … We are fighting for the protection of Arctic Ocean and Arctic National Wildlife Refuge and National Petroleum Reserve – Alaska habitat. With tusks like an elephant and the body of an overgrown seal, the Pacific walrus is one blubbery beast. Information is presented which will assist in the formulation of regulations and guide research and management activities. Walruses are bottom feeders; all of their prey sit on the bottom of the ocean floor. Like the polar bear, it is heavily dependent on sea ice for survival. The Arctic is warming at twice the rate of anywhere else on Earth. Information is presented which will assist in the formulation of regulations and guide research and management activities. Alaska Department of Fish and Game P.O. The walrus has a very distinctive feature: two large external tusks, which can grow to be a metre long and weigh 5 kg. Identified as a candidate for listing under the Endangered Species Act, the U.S. A Pacific walrus group has been formally defined as a cluster of animals resting on sea ice that are less than one walrus body … Scientists debate about if this walrus should be a sub-species of its own, or lumped in with the Pacific walrus. The Pacific walrus (Ododenus rosmarus divergens) ranges from the Chukchi Sea to the Bering Sea and utilizes sea ice for multiple life history events, including birthing, breeding, and resting (Fay 1985). They travel as the pack of ice moves. The 3-4 month delay before implantation of the embryo, followed by approximately 11 months of active gestation results in a reproductive cycle of more than one year. Most of this traffic within the range of the Pacific walrus has been confined to Russian waters. And between feeding bouts, these giants swim ashore on land or sea ice for resting, breeding, and nursing their young. Stay engaged by checking Defenders’ website and through other means to learn about when you can comment and speak out in support of protecting walrus and reducing greenhouse gas emissions. The walrus was once threatened by commercial hunting, but today the biggest danger it faces is climate change. Walrus are also seeking haul-outs on beaches, instead of ice, which puts them in closer proximity to sources of disturbance. Walruses have anywhere between 400 to 700 whiskers on the front of their face. APPEARANCE The adult male walrus is huge and weighs from 900 kg to 1400 kg. Climate change and the loss of sea ice, human disturbance due to oil and gas development, increased shipping and oil spills. More Precious Arctic Wildlife Habitat Threatened by “Energy Dominance”, Addressing Risk in the Arctic One Coastal Community at a Time. Range‐wide changes in the Pacific walrus prey base due to OA, increasing water temperature, and ecosystem shifts have the potential to impede adaptive responses. The Pacific Walrus is given its name due to the fact that they are found in the North Pacific Region of the Arctic, the Bering, and the Chukchi Seas (Fay 1981). Males use secluded rocky shores and islands, beaches and coastal headlands for summer resting and molting sites. Your adoption supports our work to protect the walrus’ habitat by fighting climate change and advocating for a ban on drilling in the Arctic region. Walrus population growth rates tend to be slow, with mature females producing a calf on average every 3 years. 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