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In the eastern Pacific Ocean, E. l. kenyoni, the northern sea otter, is found from Alaska's Aleutian Islands to Oregon and E. l. nereis, the southern sea otter, is native to central and southern California. [25] The Asian sea otter is the largest subspecies and has a slightly wider skull and shorter nasal bones than both other subspecies.
Marine otters are known to be susceptible to Toxoplasma gondii infection along the northern and central coast of Chile, [14] though T. gondii seroprevalence in this otter species is lower than in other aquatic mustelids such as the southern river otter and American mink in southern Chile, [15] likely because of the general dryness of the former ...
Marine mammals comprise over 130 living and recently extinct species in three taxonomic orders. The Society for Marine Mammalogy, an international scientific society, maintains a list of valid species and subspecies, most recently updated in October 2015. [1] This list follows the Society's taxonomy regarding and subspecies.
Southern sea otters were thought to be extinct until the early 1900s. Then a tiny remnant population was found surviving in Bixby Cove near Big Sur in 1914 , site of the now Instagram famous Bixby ...
Urchin harvesters tried to get southern sea otters’ threatened status under the Endangered Species Act revoked.
Most have sharp claws on their feet and all except the sea otter have long, muscular tails. The 13 species range in adult size from 0.6 to 1.8 m (2.0 to 5.9 ft) in length and 1 to 45 kg (2.2 to 99.2 lb) in weight. The Asian small-clawed otter is the smallest otter species and the giant otter and sea otter are the largest.
Rosa was adopted by the Monterey Bay Aquarium in 1999 and served as surrogate mother for a record 15 otters. She outlived the life expectancy for wild southern sea otters.
The southern sea otter was listed under the Endangered Species Act as a threatened subspecies in 1977. A survey taken in the spring of 2007 counted a little over 3,000 sea otters in California, up slightly from previous years but down from an estimated pre-fur trade population of 16,000. [ 40 ]