Saturday, November 23, 2013

Sea Otter

The original scientific identify of the ocean otter was Lutra marina and it underwent several(prenominal) name changes before finally becoming know as genus Enhydra lutris in 1922 (Riedmen and Estes 1990). Enhydra lutris is derived from the ancient Greek linguistic fulfil meaning in the water and otter. As part of the kingdom Animalia kingdom, the ocean otter is part of the Chordata phylum and Vertebrata subphylum because of its vertebrae (Riedmen and Estes 1990). It is in the class Mammalia class because it breathes air and has hair and is a member of the invest Carnivora order. It is similarly the largest member of the family Mustelidae family. As a go of over-hunting, colonies of sea otters became isolated and iii subspecies of sea otters aim arisen. The three subspecies ar the southern sea otter, as comfortably as known as Enhydra lutris nereis, the northern sea otter, as well known as Enhydra lutris kenyoni, and the common sea otter, similarly known as Enhydra lutris lutris. They are also referred to, respectively, as the Alaskan sea otter, California sea otter, and common sea otter. Southern sea otters are protected along the of entailment California coast while the northern sea otters are native to the Aleutian Islands and southeastern Alaska as well as British Columbia.
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Though they are quite rare, Asian sea otters range from the Kuril Islands of Japan to the Commander Islands of Russia (Hattori et al. 2005). These geographic locations offer the cave in habitat for sea otters, which prefer coastal, shallow waters. Occasionally, sea otters rifle o ut be spotted outside of this range notwith! standing the limits do not change unless an outermost main macrocosm crapper is spotted (Hattori 2005). Though these ranges continue to grow, they still rest open to oil spills, like the Valdez oil spill, which would eradicate undefiled colonies that occupy years to re-establish (Bodkin et al. 2002) The Exxon Valdez oil tanker spill was on march 24, 1989 (Bodkin et al. 2002). The oil tanker hit Bligh Reef spilling 11 stacks of oil into the Prince William...If you want to get a in full essay, order it on our website: BestEssayCheap.com

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