Northern Sea Otter wears a dark gray one-piece swimsuit that has a frilled trim around the waist, … Scientists Northern Sea Otter (アラスカラッコ, Arasuka Rakko) is a Friends that appeared in the Kemono Friends game. ), and female California sea otters weigh on average 20 kg (44 lbs.) hairs per square inch! range in weight from 50-100lbs and grow to 4-5ft from head to tail particularly Toxoplasma, in levels higher than in healthy sea Some In contrast, sea otters in the Kodiak Archipelago do not appear to have experienced any significant decline over the past 20 years. mammal. This species is aptly named because sea otters rarely come This animal is the largest otter species by weight. Habitat/Diet Instead, Northern sea otters live in the waters off southcoastal Alaska, British Columbia, and Washington State. It has Male pups weigh 12 pounds (5.4 kg) and grow to 385-605 pounds (175-275 kg) and seve… bodies were very thin when discovered. Populations in south-central and southeast Alaska continue to grow or have stabilized. This particular species is given the scientific name of Enhydra lutris. Fur seals are known and named for their thick fur, which has 300,000 hairs per square inch. This is the species known as the sea otter. lutris, which means "otter that lives in the water". Other theories suggest that the observed declines are attributable to oceanographic changes or fisheries effects. America. In southeast Alaska, sea otter numbers have nearly doubled since the early 2000s, which has led to calls from commercial shellfish fisheries and the state of Alaska to manage sea otters in important fishing areas. To support their high metabolism, sea otters eat approximately 25 percent of their body weight in food each day. Canisius College students under the direction of She is of average height in stature and has dark gray eyes. The Southcentral and Southeast Alaska stocks continue to grow or have stabilized and are not listed under the ESA. The scientific name of the sea otter is Enhydra lutris. Alaska Department of Fish and Game P.O. AFS Mammals of the World Orders 2018. More than 80 percent of southern sea otters live within the Monterey Bay National Marine Sanctuary. Japanese & Russian sea otter. Photo taken under U.S. FWS permit #MA-043219. Island chain of Alaska. The North American river otter (Lontra canadensis) is a semiaquatic mammal in the weasel family.While it may simply be called the "river otter" in North America (to distinguish it from the sea otter) there are other river otter species throughout the world. A less precipitous decline occurred over that same period in the eastern Aleutian Islands. Sea otters live in shallow coastal waters off the northern Pacific. have begun to search for explanations for this decline and, at This When They are native to the northern coastlines of the Pacific Ocean, from northern Japan to Baja, Mexico. the sea otter�s reliance on its dense fur makes it particularly In southeast Alaska, sea otter numbers have nearly doubled since the early 2000s! southern sea otter population is a perfect example of how human In the western Aleutian Islands, killer whale predation and possibly loss of carrying capacity are primary concerns. susceptible to oil spills. Rebuilding the population took about 25 years. It can weigh up to 30 pounds and as long as 60 inches long when fully grown. Fish and Wildlife Service (FWS) listed the Southwest Alaska stock as threatened in 2005 and designated critical habitat for the population in 2009. Diet A sea otter has a metabolic rate much higher than most mammals of similar size, and must consume large quantities of food. Sea otters are specialist feeders who Future actions to conserve the threatened southwest Alaska sea otter population will depend on the results of planned abundance surveys and additional research into the cause or causes of observed declines. Northern sea otter. on their backs. The skeletal structure of the sea otter is loosely articulated and lacks a clavicle which allow… Letter to FWS regarding an incidental take authorization for oil and gas activities in Cook Inlet, Letter to FWS regarding a draft stock assessment report for three stocks of Northern sea otters in Alaska, Letter to FWS regarding request for comments on the interpretation of specific terms as they pertain to Alaska natives’ taking of sea otters. Competition with commercial shellfish fisheries, entanglement in commercial fishing gear, oil spills, disease outbreaks, contaminants, subsistence harvests, killer whale predation. Elsewhere in Alaska, competition with commercial shellfish fisheries, entanglement in commercial fishing gear, oil spills, disease outbreaks, contaminants, and subsistence harvests are the primary threats. The Alaska SeaLife Center is a non-profit institution that relies on your support to maintain its important ongoing scientific exploration. Males are much larger than females, even at birth. However, the population of sea otter peaked around 1995 Year of Rescue: 2017. We also have advised the State of Alaska on management options available for responding to the continued growth of the southeast Alaska population. tip. inside their armpit for later use. FWS finalized a recovery plan for the Southwest Alaska sea otter in 2013. Historically, sea otters (Enhydra lutris) inhabited coastal waters from Baja California north to the coast of southern Alaska, west across the Aleutian islands to the Kamchatka Peninsula in Russia, and south to the northern islands of Japan. Biology 2 Scientific Names. In the U.S., there are two distinct sea otter subspecies, the Northern sea otter and the Southern (or California) sea otter. studies of the dead otters did show parasites and protozoa, In North America, there are two distinct sea otter subspecies, the northern sea otter (E. l. kenyoni) and the southern sea otter (E. l. nereis).Northern sea otters are found in the Aleutian Islands, South Central and Southeast Alaska, British Columbia, and Washington. In Alaska there are three stocks of northern sea otters—the Southwest stock, the Southcentral stock, and the Southeast stock. The sea otter is the heaviest (the giant otter is longer, but significantly slimmer) member of the family Mustelidae, a diverse group that includes the 13 otter species and terrestrial animals such as weasels, badgers, and minks. Each sea otter has over 1 million hairs per square inch on their body! This growth, coupled with concern that sea otters are competing with commercial fisheries for sea urchins, sea cucumbers, crabs, and clams has led to calls from Alaska State officials and some fisheries groups for a cull of the population. In Alaska there are three stocks of northern sea otters—the Southwest stock, the Southcentral stock, and the Southeast stock. North American River Otter. The Southwest stock, which includes otters in the Aleutian Archipelago, the Alaska Peninsula, and Kodiak Island, is listed as threatened under the Endangered Species Act (ESA). Adult sea otters may eat as much as 9 kg (20 lbs.) first, it was believed that the otters were starving because their Population levels in the Southcentral stock have now stabilized and are estimated to be around 15,000 animals. population of sea otters made a wonderful recovery from near From the Aleutian Islands to south-central and southeastern Alaska, British Columbia, and Washington State, where otters have been reintroduced. A separate population also exists along the Aleutian The stock of sea otters in southeastern Alaska has grown exponentially since their reintroduction in the late 1960s. Behavior/Reproduction Two sea otter subspecies occur in the United States, the southern sea otter (Enhydra lutris nereis) and the northern sea otter (E.l. kenyoni). Most people are familiar with animals that live in the ocean but come onto land, such as seals, sea lions, sea otters, penguins, and puffins. causes of the otters' weakened immune system. otters. Description. The only member of the genus Enhydra, the sea otter is so different from other mustelid species that, as recentl… Opossums. 62 terms. Despite its common name, the North American river otter is equally comfortable in either coastal marine or freshwater habitats. The practice of cracking open The Southern sea otter is native to the coast of California. It is counted twice per year with Like other otter Friends she has a trimmed white fur collar around her neck. All three stocks in Alaska are protected under the MMPA. Sea otter dentition is adapted for crushing hard-shelled invertebrates such as clams, urchins, and crabs. Mammal 2- Order. Enhydra lutris has three subspecies that live in geographically separate populations: Enhydra lutris nereis — Southern sea otter or “California” sea otter; ranges in California from San Mateo County … Adult males also have gray hair on the backs of their necks. In some places on its body it has as many as one million To appreciate this, imagine all the hair The sea otter is the only member of this genus. Scientific Name: Enhydra lutris. Before commercial hunting began in the mid-1700s, an estimated 150,000 to 300,000 sea otters occurred in coastal waters throughout the rim of the North Pacific Ocean from northern Japan to Baja California, Mexico. That designation includes waters out to either 100 meters from shore or out to the 20 fathom isobaths in most areas within the population’s range. An adult North American river otter … approximately 200 sea otters dying between recent counts. because it is the only marine mammal without blubber. The Sea Otter's scientific name is Enhydra lutris, which means "otter that lives in the water". Researchers are working to complete an analysis of carrying capacity for the growing southeast Alaska. 90% of the world’s sea otters live in coastal Alaska. They blow air bubbles into their fur to create Michael Noonan, PhD. This suggests a weakened immune system is the cause. There are many ways to get involved. Unfortunately, She posses ears and a tail that befit her species, her tail and ears being a gray color. The Fur Trade Sea otters were hunte… chosen by a given sea otter is strongly influenced by what he was Sea Otter Scientific Name. of food each day. Sea otters have the scientific name Enhydra lutris, and are from the family Mustelidae, a family of mammals that have a carnivorous diet that includes weasels and badgers. carnivorous marsupials (dasyurids, Tasmanian devils) ... Scientific Names (AP Biology 2) 45 terms. U.S. FWS Stock Assessment Reports – Sea Otters, USGS Nearshore Marine Ecosystem Research Program, Alaska Department of Fish and Game Northern Sea Otter species page, International Union for Conservation of Nature (IUCN) Sea Otter page, Marine Mammal Commission: An Independent Agency of the U.S. Government, Provisions for Managing Fisheries Interactions. Although there are now more than 20,000 sea otters in southeast Alaska, the population likely remains below its optimum sustainable population level, something that the USGS and FWS are currently assessing. Conservation break open the hard shell and gain access to the meat inside. Adults The fur of the sea otter is more dense than that of any other The Northern river otter is the largest river otter in North America and Canada. the northern Pacific. The rise and fall of Content provided by Since the 1980s, most northern sea otter populations have continued to recover. In contrast to the Southwest Alaska stock, the numbers of otters in the Southcentral and Southeast Alaska stocks have increased or stabilized despite thousands of sea otters from the Southcentral Alaska stock having died in Prince William Sound as a result of the 1989 Exxon Valdez oil spill. This animal is the largest otter species by weight. OTHER SETS BY THIS CREATOR. insulators which separate the sea otter's skin from the cold water. been hypothesized that human pollutants in the water such as PCB�s, All sea otters belong to the genus Enhydra. Pups are born with a black pelt, which becomes dark brown with lighter coloration on the chest and belly. In southeast Alaska, sea otter numbers have nearly doubled since the early 2000s, which has led to calls from commercial shellfish fisheries and the state of Alaska to manage sea otters in important fishing areas. The survivors were scattered among small colonies in remote areas of Russia, Alaska, British Columbia, and central California. (Ryan Wolt). Northern Sea Otter has short-length, pure white hair that is tied together at two spots on the top of either side of her head. Back at the surface, they The sea otter fits all of these characteristics and also is active year round like members in this family. activities can impact the lives of marine mammals. The results of this study are expected to inform a determination of the stock’s status relative to its optimum sustainable population level, which in turn will dictate what management options might be available under the MMPA. This adaptation is critically necessary for the sea otter to survive Sea otters are suited to their marine environment by adaptations of dentition, skeletal structure, and pelage. Distribution: The northern sea otter subspecies (E. lutris kenyoni), is found in the Aleutian Islands, Southern Alaska, British Columbia, and Washington. otters keep the same stone throughout their entire lives, placing it Enhydra lutris lutrus. The U.S. Geological Survey (USGS) published a 2014 report concluding that the population had recovered to pre-spill levels. California. In 1911, hunting was prohibited under the terms of an international treaty for the protection of North Pacific fur seals and sea otters signed by the United States, Japan, Great Britain (for Canada), and Russia. The sea otter spends most of its time in the water but, in some locations, comes ashore to sleep or rest. taught by observing his mother. It makes its home in a burrow near the water's edge, and can thrive in river, lake, swamp, or estuary ecosystems. The oil clogs the otter�s fur limiting it Scientific names. primarily feed on mollusks and crustaceans. The range of these mammals extends from Peru to the southern part of Cape Horn, and in Argentina, on the coast of the Tierra del Fuego. from maintaining the necessary insulating air pockets. Sea otters are the smallest marine mammal and are most closely related to river otters. Sea otters are a member of the weasel family (Mustelidae) and live in the near-shore waters along the North Pacific ocean. Didelphimorphia. Sea otters. These marine mammals spend a lot of their day grooming their fur! find a decline in the main food sources for the otters. We observed it's most southern population on the coast of One theory for the observed population declines is an increase in predation by killer whales. "Sea Otter" is an Enhydra type of sea animal that belongs to the Mustelidae family. However, researchers did not Sea otters belong to the weasel family, Mustelidae, which they share The playful North American river otter is equally at home in the water and on land. The southwest Alaska sea otter population is listed as threatened under the Endangered Species and designated as depleted under the Marine Mammal Protection Act. Dasyuromorhia. Northern sea otters face a variety of threats throughout their range. The North American river otter (Lontra canadensis), also known as the northern river otter or common otter, is a semiaquatic mammal endemic to the North American continent found in and along its waterways and coasts. The Commission is following closely work being done by the FWS, USGS, and others to monitor the status of the Alaska population stocks. extinction. Ongoing conservation efforts are directed at monitoring changes in abundance and distribution of northern sea otters and trying to ascertain the causes of declines in southwestern Alaska. air pockets around the hair follicles and these air pockets act as They characteristically dive to the bottom of the By then, only a few thousand otters remained. otters then repeatedly hit the mollusk against the rock in order to Within Alaska, there are 3 stocks. Southern sea otters (Enhydra lutris nereis), also known as California sea otters, have been listed as a threatened species under the Endangered Species Act since 1977. The northern sea otter is endemic to the Eastern Pacific between the Aleutian Islands in Alaska and Oregon. The Southeast stock can be found in the coastal waters of Southeast Alaska. species is aptly named because sea otters rarely come The U.S. Sea otters (Enhydra lutris) are an easily recognized and beloved marine mammal. The Sea Otter's scientific name is Enhydra Sea otters live in shallow coastal waters in the northern Pacific. and now has been once again on the decline. Sea otter scientific name is Enhydra lutris. with minks and weasels. Established in 1964, the IUCN Red List of Threatened Species has evolved to become the world’s most comprehensive information source on the global conservation status of animal, fungi and plant species. Scientific Name: Enhydra lutris. 49 terms. The Southern population The sea otter can be found along the Pacific Coastline of North is estimated at 2000 animals. The North American river otter occurs in much of Canada and the United States, except for portions of the Southwest, and in Mexico in the Rio Grande and Colorado River delta areas. Domain: Eukarya. Currently sea otters can be found in Alaska, Russia, British Columbia, Washington, and California. Enhydra Fleming, 1822 – sea otters : Species: Enhydra lutris (Linnaeus, 1758) – Sea Otter, Nutria marina : Direct Children: Subspecies: Enhydra lutris kenyoni Wilson, 1991 – northern sea otter : Subspecies: Enhydra lutris lutris (Linnaeus, 1758) – sea otter : Subspecies: Enhydra lutris nereis (Merriam, 1904) – southern sea otter Taxonomy/Description Scientific Name: Lontra canadensis. Sea otters are rare animals, a small population of which has been preserved in the tropical and temperate regions of the coast of South America. Currently the population is estimated at just above 3,000 animals. Box 115526 1255 W. 8th Street Juneau, AK 99811-5526 Office Locations Scientific Name: Enhydra lutris kenyoni. dense fur allows the sea Otter to keep warm in the cold waters of kiai iremakuri nandesu. When feeding, sea otters can often be seen floating By the time the Marine Mammal Protection Act (MMPA) was enacted in 1972, remnant groups in Alaska had grown considerably and, in the late 1960s and early 1970s, several hundred otters were moved from Amchitka Island and Prince William Sound to try to reestablish populations in southeast Alaska and the outer coasts of Washington and Oregon. It is unique among the mustelids in not making dens or burrows, in having no functional anal scent glands, and in being able to live its entire life without leaving the water. follicles from ten human heads compacted into one square inch. Common Name: Northern American Sea Otter. They have furry bodies, whiskered faces, and a propensity to lay on their backs and float on the water, a behavior that humans perceive as evidence of fun-loving. DDT and tributylin, a substance found in boat paint, may be the The Sea Otter mammals hail from the northern and eastern coasts of the North Pacific Ocean, and they are one among the smallest animals in their family. The Europeans first named them "sea bears" which is similar to their scientific name Callorhinus ursinus, meaning "bear-like." Southern sea otters, also known as California sea otters, live in the waters along the central California coastline. Common Name: Northern Sea Otter. then float on their backs placing the rock on their abdomens. The type of mollusk on land. Sea otters were once hunted extensively for their dense pelts. The Commission expects to review updated stock assessment reports for the three northern sea otter stocks in 2018. For more information on Southern sea otters, see the Commission’s 2012 annual report. The abundance of Southwest Alaska sea otters in the western and central Aleutian Islands declined by nearly 90 percent between the early 1990s and 2005. Sea otters feed on sea urchins, abalone, mussels, clams, crabs, snails and about 40 other marine species. Without blubber, sea otters rely on thick, waterproof fur. Pictures: Feeding Foods and Ecological niche: Sea otters main sources of food: urchins, mussels, clams, crabs, and snails Ecological niche: Sea otters live and familiarize themselves in shallow waters. This Since the prohibition on commercial hunting in 1911, sea otters have recolonized or have been reintroduced into much of their historic range. mollusks with stones is a form of tool use. Facts about Sea Otter, "Scientific name for Sea Otter is Enhydra lutris". ocean and pick up a mollusk and a rock. 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