They eat 40 plus different types of species such as clams, urchins, and snails. Southern Sea Otter. Cool Facts. Males can weigh up to 70 lbs. A sea otter relies on its fur to keep warm because it doesn't have an insulating layer of blubber as other marine mammals do. Sea otters are members of the weasel or mustelid family. In fact, at 850,000 to one million hairs per square inch, they have the thickest fur of any mammal. Other threats to southern sea otters include entrapment or entanglement in fishing gear, oil spills, and climate change. Sea otters are generally considered to be a keystone species in these communities. Sea Otters have a polygynous mating system and show highly significant sexual dimorphism. They are mostly found in temperate or cold coastal waters with plentiful forests of giant kelp beds. How Do Sea Otters Eat? Predators and Prey of the Sea Otter The sea otter's diet includes about 40 marine species, including urchins, crabs, clams, abalones, mussels, and snails. Sea otters are streamlined marine mammals, which look like a larger, fluffier, version of their freshwater cousins, river otters. Northern sea otters are larger, up to 70 pounds (32 kg) for females and 100 pounds (45 kg) for males. Adult males average 65 lbs. A quick glance at facts about California's southern sea otter population.-- Created using PowToon -- Free sign up at http://www.powtoon.com/ -- Create animated… (29.5 kg) and adult females average 45 lbs. The current range extends along the California coast from Half Moon Bay in the north to Santa Barbara in the south, though individuals are occasionally seen outside these limits. 2493 Portola Road, Suite B Seagrasses also provide important benefits, such as nursery habitat for many other species, shoreline protection, and carbon sequestration. Unlike northern sea otters found in Alaska, southern sea otters here in California don’t eat fish. Sea otter moms typically nurse and care for their pups for about 6 months before weaning them. Sign up for free. The translocation program allowed the reintroduction of sea otters to San Nicolas Island but also required the removal of sea otters from a “no-otter” management zone. There are approximately 3,200 along the central California coast today, ranging from San Mateo County south to Santa Barbara County and San Nicolas Island. They are usually seen in rocky marine habitats where there is a high abundance of kelp canopy and typically in water depths about 20 m. Kelp canopy is an important habitat component used for resting and foraging. Sea otters are quite large, weighing up to 100 pounds (45 kg) and reaching lengths of nearly 5 feet (1.5 m). California Sea Otters live among the protected shallow coastal waters between Half Moon Bay and Santa Barbara with a small colony on San Nicolas Island. Fact1: Sea otters have incredibly fast metabolisms; a 60-pound adult sea otter eats at least 15 pounds of food (25% of its body weight) each and every day. Oil spills. Unlike most other marine mammals, they have little subcutaneous fat, relying instead on their clean, dense, water resistant fur for insulation against the cold. Females typically give birth to a single pup, with care provided solely by the pup’s mother for the approximately 6 months until weaning. 1. They have webbed feet, water-repellent fur to keep them dry and warm, and nostrils and ears that close in the water. 2. Sea otters have the thickest fur of any marine mammal, averaging 850,000 … Sea otters also have thick, brown fur that insulates them against the cold waters of the Pacific Ocean. The existence of sea otter is helping the ecosystem to be balance. Sea Otters give birth throughout the year, there is three factors that may effect when the female gives birth those are: the weather, amount of food available, and the location. _abc cc embed * Powtoon is not liable for any 3rd party content used. Most Sea Otter "raft" in kelp beds with other otters. The sea otter can live its entire life without leaving the water. 3. Pup rearing and provisioning impose high energetic costs on females, requiring them to increase foraging effort during this period and leaving them highly susceptible to stressors they may encounter when they come into estrous after weaning, such as infections and aggression by males. Large percentage of southern sea otter mortality is due to infectious diseases, many of which are known to have anthropogenic causes. Because of its smart brain, sea otter uses its hand and take a rock to dislodge the invertebrate animal from its shell before the sea otter eats it. Wild sea otters typically have a lifespan between 15 and 20 years. Southern sea otter #530 with her male pup. Like other members of this family, they have very thick fur. Both are named after characters in John Steinbeck novels. Currently the southern sea otter population is estimated at just above 3,000 animals. Southern sea otter consumes many types of prey including sea urchins, snails, clams, abalone, mussels, crabs, scallops, fish, barnacles, octopus, worms, and squid, which it captures with its clawed paws, not its jaws. In Russia, the count has come down to 15,000 and only a few dozens are left in Japan. Depending on factors such as habitat, sex, reproductive status, and per-capita prey availability, obtaining this quantity of food requires that sea otters spend 20-50 percent of the day foraging. Tune into our LIVE Sea Otter Cam for your daily dose of sea otter cuteness. Here are some viewing tips to help you enjoy watching sea otters and other marine wildlife in a safe and responsible way. They use their flat, webbed hind feet to swim and have been known to swim up to 5mph. What's cuter than two furry sea otters? The annual southern sea otter census is a cooperative effort between USGS-Western Ecological Research … A high number population of sea urchin can be reduce and reach its normal number of population because sea otter feeds on it. 1. The southern sea otter (Enhyrda lutris nereis), which lives in southern California. (20 kg) in weight. Floating on its back and using its chest as a table, a sea otter often uses a rock to crack open its prey — especially if dinner is a crab, clam or mussel. Sea otters spend approximately 9 to 12 hours foraging each day. SHARE THE AWESOMENESS. Sea otters, the smallest and most recently evolved of all marine mammals, are in the family Mustelidae that includes weasels, ferrets, badgers, skunks, freshwater and sea otters, and minks. Southern sea otters (Enhydra lutris nereis), also known as California sea otters, were listed as threatened in 1977 under the Endangered Species Act. Sea otter pups. As a result, their energetic requirements are high, and they consume an amount of food equivalent to about 25 percent of their body mass per day. It sometimes is considered a subspecies of Lontra canadensis.The southern river otter is listed as endangered, due to illegal hunting, water pollution, and habitat loss Want to watch cute sea otters romp, wrestle and play every day of the year? A very small relocated population resides in Southern California at San Nicolas Island of the Channel Islands. Cool Facts. The Southern sea otter is native to the coast of California. Sea otter pups are born with a buoyant fur that does not allow them to sink. Description. Their teeth are strong enough to crunch open a clam shell or bite through a sea urchin's spines. Although they hunt on the sea floor, they return to the surface to eat. Oct 24, 2018 - Explore Kristen Marie's board "Otter Facts", followed by 103 people on Pinterest. The southern river otter (Lontra provocax) is a species of otter that lives in Chile and Argentina.Although called a "river otter", it inhabits both marine and freshwater environments. Here are 5 fun & easy to remember facts about sea otters. By the year 2009 the southern sea otters at the coast of California were approximately 2,800, in Alaska, Washington and Canada, and the northern sea otters were between 64,600 to 77,300. Otters do not have blubber, instead air is trapped within their fur to keep them warm. This system traps a layer of air next to their skin so their skin does not get wet. Sea Otter: The Animal’s Predator and Prey . They have four legs to move easily on land, and a long tail to swim through the water. Two or more otter species occupying the same geographical area usually have different food habits. Sea otters are part of the weasel family. The sea otter can live its entire life without leaving the water. Sea otters are one of the few animals that use tools. A quick glance at facts about California's southern sea otter population.-- Created using PowToon -- Free sign up at http://www.powtoon.com/ -- Create animated… Most common prey for California sea otters are Rock and Dungeness crabs. Reduced range and population size, vulnerability to oil spills, and oil spill risk from coastal tanker traffic were the primary reasons for listing. california sea otters divide themselves in diet guilds. The sea otter is a generalist predator, known to consume more than 150 different prey species. From feeding habits to ecosystem maintenance, sea otters are more than meets the eye. For southern sea otters to be considered for removal from threatened species listing, the population index would have to exceed 3,090 for three consecutive years, according to the threshold established under the Southern Sea Otter Recovery Plan by the U.S. 3. The animals that they prey on devour kelp forests. Two furry sea otters — holding paws. Sea otters most closely resembling today’s southern sea otters occupied the southernmost portion of that range—from at least as far north as Oregon to the species’ southern limit at Punta Abreojos, Baja California. For southern sea otters to be considered for delisting under the Endangered Species Act, the population index would have to exceed 3,090 for three consecutive years, according to the Southern Sea Otter Recovery Plan. Sea otters also maintain a high level of internal heat production to compensate for their lack of blubber. Under their arms, Sea otters have built in pockets. Images of them eating, swimming, and even interacting with humans can be found here. Otters use tools like rocks and sometimes soda cans. Before the fur trade of the 18th and 19th centuries, sea otters ranged along the North Pacific Rim from Hokkaido, Japan to Baja California, Mexico. Keystone species are organisms that have large-scale community effects disproportionate to their abundance. Average weight of an adult female California sea otter is about 50 lbs. Contamination of their fur by oily substances can destroy its insulating properties and lead to hypothermia and death. Humans have 100,000 pieces in total on their head, while otters have up to one million hairs per square inch. Southern sea otter facts. Sea otters are usually dark brown, often with lighter guard h… They can have over 1,000,000 hairs per square inch on their bodies! Under state law, southern sea otters are "fully protected" mammals. Sea otters eat about 25% of their weight every day, and is arguably the number one cause in sea otter deaths, when they cannot forage enough food… They also feast on critters of the ocean like sea urchins, crabs, squid, octopuses, and tiny or puny fish. Sea otters naturally thrive in nearshore habitats. These stressors include biotoxins produced during harmful algal or cyanobacterial blooms, disease-causing pathogens such as the protozoal parasites Toxoplasma gondii and Sarcocystis neurona, and acanthocephalan parasites. Newborn sea otter pups are so buoyant they can’t immediately dive for food. 2. An extensive review of the translocation program was completed in 2012, resulting in termination of the program. California’s southern sea otter has been listed as a threatened species under the Endangered Species Act since 1977. Sea otter counts are conducted annually by the U.S. Geological Survey. Currently the southern sea otter population is estimated at just above 3,000 animals. Sea otters are commonly spotted on WWF’s Alaska tours. The sea otter's dark brown fur is the finest and densest of any animal fur. The latest census and stranding information is available at www.werc.usgs.gov/seaottercount. The southern sea otter, one of 13 different species of river and sea otters worldwide, ranges from Año Nuevo, north of Santa Cruz, to Purisima Point, north of Point Conception. Southern sea otters inhabit shallow nearshore coastal ecosystems within 1-2 km from shore. The southern river otter (Lontra provocax) is a species of otter that lives in Chile and Argentina. When the mothers dive for food, they tie their babies into kelp to ensure that they will not float away. Sea Otters spend most of their life at sea, but will come ashore in bad weather or to avoid predators. Fact2: Weighing between 30 and 100 pounds, the sea otter is the world’s smallest species of marine mammal. These forests are one of the most dynamic and richest marine ecosystems in the world, possessing high density of biomass and greater productivity. Sea Otter Sea otters are part of the weasel family. Interesting Facts About the Sea Otter. If you come across a sea otter you think is sick, injured or abandoned, please give it space and call The Marine Mammal Center’s stranding hotline at (415) 289-7325. Ventura, CA 93003, Southern Sea Otter (Enhydra lutris nereis) 5-Year Review: Summary and Evaluation 3.31mb PDF, Final Incidental Harassment Authorization for Waterfront Repairs at U.S. Coast Guard Station Monterey, Request for Incidental Harassment Authorization for Waterfront Repairs at U.S. Coast Guard Station Monterey, Proposed Incidental Harassment Authorization, Final Incidental Harassment Authorization, Marine Mammals; Incidental Take During Specified Activities; Proposed Incidental Harassment Authorization, Incidental Harassment Authorization Request and Monitoring Plan, Comments Received on Proposed Incidental Harassment Authorization, Big Sur Monterey Sea Otter Study Draft Report PDF 8.5mb, Featured Story - Slowly Swimming Towards Recovery, California's Sea Otter Numbers Holding Steady, Termination of the Southern Sea Otter Translocation Program; Final Rule, Summary of comments received on final SEIS and Proposed Rule, Letter to Deputy Assistant Secretary of the Navy Donald Schregardus FSEIS Comments [871 kb], Final Supplemental EIS on the Translocation of Southern Sea Otters - Volume 1 [5.59mb], Final Supplemental EIS on the Translocation of Southern Sea Otters - Volume 2 [18.74mb], Final Recovery Plan for the Southern Sea Otter [1.8mb)], Ventura Fish and Wildlife Office There is one species of sea otter and three subspecies, the California or Southern sea otter is found off the central coast of California, the Northern sea otter is found in the waters off Alaska and Canada, and the common or Asian sea otter is found along coastlines of Japan and Russia. The population index exceeded 3,090 for the first time in 2016. A quick glance at facts about California's southern sea otter population. The Furriest of Fur Coats – Sea otters have the densest fur of any animal. Sea otters have a profound impact on the coastal habitats which is why they are rightly known as keystone species. Hopefully not stinky skunks!!! Sea otters naturally thrive in nearshore habitats. Their fur actually consists of two layers, an undercoat and longer guard hairs. A much larger population exists in Alaska (more than 70,000 individuals), and a sizeable population (estimated at more than 25,000 sea otters) exists in Russia. They have webbed feet, water-repellent fur to keep them dry and warm, and nostrils and ears that close in the water. Sea Otters live in the coastal waters of the Pacific Ocean in North American and Asia. 2. It sometimes is considered a subspecies of Lontra canadensis. The life of a southern sea otter Sea otters spend most of their time near the shore. Back to the top. As a keystone species, the southern sea otters play a critical role in keeping the California kelp forest ecosystem healthy. Today southern sea otters have reclaimed about 13 percent of their historic range: the mainland coastline from San Mateo County to Santa Barbara County, California, and San Nicolas Island, Ventura County (as a result of translocation efforts initiated in 1987). Sea otters have no blubber so they constantly groom themselves to maintain the insulating & water repellant properties of their fur. Ivy (left) is our youngest otter at about four years old, while Kit (right) is about six years old and one of our biggest otters at roughly 50 pounds. A newborn southern sea otter pup is a buff color, 22 to 24 inches (55 – 60 cm) in length and 4 to 5 lbs. Sea otters have built in pouches of loose skin under their forearms to stash extra prey when diving. Sea otters are related to skunks and weasels. They are mostly found in temperate or cold coastal waters with plentiful forests of giant kelp beds. The Sea Otter is a marine mammal that has 3 subspecies: Southern Sea Otter, Northern Sea Otter, and Russian Sea Otter. A lanugo is a very soft, downy hair that develops in humans as well as animals. An otter must consume 25% of its bodyweight in prey each day just to stay alive (for a 75 lb kid, that’s 75 1/4 lb burgers!). This range decreased significantly during the fur trade during the 18th and 19th centuries, with excessive hunting nearly driving the species into extinction by the early 1900s. Sea otters can spend their entire life in water. The sea otter spends most of its time in the water but, in some locations, comes ashore to sleep or rest. Mothers nurse their young for up to eight months. Learn more about these cute and charismatic critters. Hopefully not stinky skunks!!! No sea otters, no kelp forests. • To maintain its body temperature, the sea otter eats 25% to 35% of its body weight in single day. Not all otters use tools, but sea otters use them all the time. Deepest dive recorded is 264 feet. 9. The northern sea otter (Enhyrda lutris kenyoni), which lives from the Aleutian Islands off Alaska, down to Washington state, and The southern sea otter (Enhyrda lutris nereis), which lives in southern California. A small population of sea otters lives at S… On an adult animal, there are an estimated 650,000 hairs per square inch. Both mating and birth take place in the water, and males have harems of several females. Range expansion is key to southern sea otter recovery and to the restoration of ecosystems in which sea otters were once the keystone species. 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