4. For one of the smallest marine mammals on Earth (yet the largest member of the weasel family), the sea otter has racked up quite a few superlatives: 10. 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. (29.5 kg) and adult females average 45 lbs. See more ideas about otter love, otters, sea otter. Adult males average 65 lbs. After hunting on the seafloor, sea otters return to the surface to eat. 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… Adult southern sea otters are approximately 4 feet (1.2 m) in length. The southern sea otter measures up to 4 feet (1.2 m) in length; females weigh up to 50 pounds (23 kg) and males up to 70 pounds (32 kg). Otters use tools like rocks and sometimes soda cans. The population index exceeded 3,090 for the first time in 2016. 1. With few exceptions, their prey consist of slow moving benthic invertebrates and shellfish. Southern Sea Otter. Interesting Facts About the Sea Otter. The animals that they prey on devour kelp forests. 2493 Portola Road, Suite B At the moment Powtoon presentations are unable to play on devices that don't support Flash. There are three subspecies: the northern (Alaska) sea otter Enhydralutris kenyoni; the Asian sea otter E. l. lutris; and the southern sea otter E. l. neresis. Their fur actually consists of two layers, an undercoat and longer guard hairs. Is there a pupping season? They use their flat, webbed hind feet to swim and have been known to swim up to 5mph. 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. • To maintain its body temperature, the sea otter eats 25% to 35% of its body weight in single day. Sign up for free. Southern sea otters (Enhydra lutris nereis), also known as California sea otters, were listed as threatened in 1977 under the Endangered Species Act. Back to the top. southern sea otter 88 lbs). Cool Facts. Sea otter pups. Sea otters also maintain a high level of internal heat production to compensate for their lack of blubber. By RickWood | Updated: Dec. 5, 2015, 10:09 p.m. Loading... Slideshow Movie. Sea otters primarily rely on their sense of touch (whiskers and forepaws) in murky waters to locate prey. How Do Sea Otters Eat? This system traps a layer of air next to their skin so their skin does not get wet. 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. The sea otter is covered in dense fur that consists of two layers. The sea otter's dark brown fur is the finest and densest of any animal fur. What's cuter than two furry sea otters? Oil spills. Otters do not have blubber, instead air is trapped within their fur to keep them warm. 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, 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. The existence of sea otter is helping the ecosystem to be balance. Fun Facts for Kids. They have four legs to move easily on land, and a long tail to swim through the water. Both northern and southern sea otters once inhabited the Oregon coast. 2. Sea otters have no blubber so they constantly groom themselves to maintain the insulating & water repellant properties of their fur. Southern Sea Otter Enhydra lutris nereis : Fun Facts • Sea otters do not have blubber to keep warm, instead they have very dense fur (up to one million hairs per square inch). Sea otters reach maximum lengths of 4.9 feet (1.5 m) and weights of 100 pounds (45 kg). Northern sea otters are larger, up to 70 pounds (32 kg) for females and 100 pounds (45 kg) for males. It sometimes is considered a subspecies of Lontra canadensis. Mating and breeding does not take place in the Sea Otter’s life until later on. Newborn sea otter pups are so buoyant they can’t immediately dive for food. Historically, southern sea otters were present in coastal marine habitats from northern California to Baja California in Mexico. 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!). From feeding habits to ecosystem maintenance, sea otters are more than meets the eye. 4. Large percentage of southern sea otter mortality is due to infectious diseases, many of which are known to have anthropogenic causes. Therefore, sea otters are crucial to maintaining kelp forest levels, which provide cover and food for many marine animals. Sea Otters live in the coastal waters of the Pacific Ocean in North American and Asia. Average adult sea otter: • Length: approximately 4-4.5 feet • Weight: 45 lbs (females); 65 lbs (males; max. Sea otters are equally active both night and day. Fun Facts About Sea Otters. There is, additionally, a small colony near San Nicolas Island off Santa Barbara. Sea otters naturally thrive in nearshore habitats. Sea otters can spend their entire life in water. 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. Reduced range and population size, vulnerability to oil spills, and oil spill risk from coastal tanker traffic were the primary reasons for listing. Mothers nurse their young for up to eight months. Southern sea otter facts. They also feast on critters of the ocean like sea urchins, crabs, squid, octopuses, and tiny or puny fish. 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. 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). The sea otter can live its entire life without leaving the water. 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. Other threats to southern sea otters include entrapment or entanglement in fishing gear, oil spills, and climate change. Unlike northern sea otters found in Alaska, southern sea otters here in California don’t eat fish. Contamination of their fur by oily substances can destroy its insulating properties and lead to hypothermia and death. Usually, a single baby (called a pup) is produced following 4 to 5 months of pregnancy. They typically … Keystone species are organisms that have large-scale community effects disproportionate to their abundance. In particular, they play a vital role in preserving the kelp forests. Sea Otter Facts Sea otters are the smallest marine mammal. Sea otters are one of the only mammals that are been known to use tools to obtain and eat their prey. Sea otters eat many kinds of invertebrates, including sea urchins, abalone, clams, crabs, snails, sea stars, squid & octopuses. The Marine Mammal Protection Act states that marine mammal stocks “should not be permitted to diminish beyond the point at which they cease to be a significant functioning element in the ecosystem of which they are a part.” For southern sea otters, this likely means that the population would have to exceed 8,400 animals in California alone. 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. They are mostly found in temperate or cold coastal waters with plentiful forests of giant kelp beds. Therefore, sea otters are crucial to maintaining kelp forest levels, which provide cover and food for many marine animals. 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. Sea otters are commonly spotted on WWF’s Alaska tours. Longest dive ever recorded was just under 8 minutes. A high number population of sea urchin can be reduce and reach its normal number of population because sea otter feeds on it. Can otters use tools? Sea otters are part of the weasel family. 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… The Sea Otter is a marine mammal that has 3 subspecies: Southern Sea Otter, Northern Sea Otter, and Russian Sea Otter. In Thailand, the ranges of at least three otter species overlap. 2493 Portola Road, Suite B Southern sea otters wallpaper. Sea otters often float at the water's surface in forests of kelp, or giant seaweed, and entangle themselves to keep from moving in the rolling sea. Tune into our LIVE Sea Otter Cam for your daily dose of sea otter cuteness. Sea otters naturally thrive in nearshore habitats. 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. 1. The sea otter's dark brown fur is the finest and densest of any animal fur. Southern sea otters (Enhydra lutris nereis), also known as California sea otters, were listed as threatened in 1977 under the Endangered Species Act. The Southern sea otter is native to the coast of California. Sea otter pup fur is known as a lanugo. 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. Sea Otter Facts California’s southern sea otter has been listed as a threatened species under the Endangered Species Act since 1977. Pups begin to dive and forage at about 2 months. The body condition of sea otters in areas of the range with low per-capita prey availability strongly influences their susceptibility to additional stressors. OCEANWALKERS Sea Otters live in coastal waters & estuaries. Like other members of this family, they have very thick fur. Sea Otters do not migrate due to their coat of fur. Unlike most other marine mammals, they have little subcutaneous fat, relying instead on their clean, dense, water resistant fur for insulation against the cold. 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. They need a lot of food so that they stay healthy. Gestation is 6 months (2 months delayed implantation + 4 months pregnancy). Southern sea otters can live to approximately 15 years for males and 16 years for females. The very recent (2015-2016) increase in sea otter numbers in the center of the range may be due to an increase in sea urchin abundance resulting in part from the near-total loss of sea stars, an important predator of sea urchins, from the Pacific coast due to wasting disease. The Southern Sea Otter & Southwest Stock of Northern Sea Otters in Alaska are both listed as “threatened” under the Endangered Species Act. A lanugo is a very soft, downy hair that develops in humans as well as animals. Sea otters are quite large, weighing up to 100 pounds (45 kg) and reaching lengths of nearly 5 feet (1.5 m). Sea otters eat sea urchins & other invertebrates that graze on giant kelp. A very small relocated population resides in Southern California at San Nicolas Island of the Channel Islands. That’s the same as an average teenager eating 120 hamburgers. Humans have 100,000 pieces in total on their head, while otters have up to one million hairs per square inch. 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… 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 to feed themselves. (1.8-2.3 kg). As a keystone species, the southern sea otters play a critical role in keeping the California kelp forest ecosystem healthy. In Russia, the count has come down to 15,000 and only a few dozens are left in Japan. Southern sea otters inhabit shallow nearshore coastal ecosystems within 1-2 km from shore. For one of the smallest marine mammals on Earth (yet the largest member of the weasel family), the sea otter has racked up quite a few superlatives: 10. Southern sea otters are among the smallest of marine mammals, with adult females and males averaging 46 and 64 pounds, respectively. 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. Reduced range and population size, vulnerability to oil spills, and oil spill risk from coastal tanker traffic were the primary reasons for listing. 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. 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. They eat 40 plus different types of species such as clams, urchins, and snails. Fact2: Weighing between 30 and 100 pounds, the sea otter is the world’s smallest species of marine mammal. Shallow water no more than 100 feet deep is the otter’s preferred habitat, because it means less time spent diving for food. Sea otter fur is the densest of any mammal at about 1 million hairs per square inch (We have 100,000 hairs on our entire head). They have webbed feet, water-repellent fur to keep them dry and warm, and nostrils and ears that close in the water. In fact, at 850,000 to one million hairs per square inch, they have the thickest fur of any mammal. Southern sea otter (Enhydra lutris nereis) images and facts - this gallery boasts a stunning display of stock photos showing the unique character of the southern sea otter in countless different positions. Range expansion is key to southern sea otter recovery and to the restoration of ecosystems in which sea otters were once the keystone species. Sea otter moms typically only give birth to 1 pup. Hunting for food is one of the most important daily activities for the sea otter. Newborn pups cannot sink nor can they dive. Although called a "river otter", it inhabits both marine and freshwater environments. Sea otter counts are conducted annually by the U.S. Geological Survey. Description. Threats to population recovery include white sharks, pathogens & parasites, food limitation, coastal pollutants and oil spills. iStock Once thought to be gone from the area completely, southern sea otters—known as California sea otters—have been making a … 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. 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. Kelp forests provide numerous direct and indirect benefits, including habitat for hundreds of invertebrate and fish species, reductions in coastal erosion, and carbon storage that can moderate climate change. Education. 5. Sea otters have a profound impact on the coastal habitats which is why they are rightly known as keystone species. The sea otter is a generalist predator, known to consume more than 150 different prey species. No sea otters, no kelp forests. On an adult animal, there are an estimated 650,000 hairs per square inch. Currently the southern sea otter population is estimated at just above 3,000 animals. 3. california sea otters divide themselves in diet guilds. Hopefully not stinky skunks!!! Have you ever seen an otter with a scarred or bloody nose? A Sea Otter's Diet Sea otters eat a wide variety of prey, including marine invertebrates such as echinoderms (sea stars and sea urchins), crustaceans (e.g., crabs), cephalopods (e.g., squid), bivalves (clams, mussels, abalone), gastropods (snails), and chitons. When the mothers dive for food, they tie their babies into kelp to ensure that they will not float away. 2. Shallow water no more than 100 feet deep is the otter’s preferred habitat, because it means less time spent diving for food. A small population of sea otters lives at S… Fish and Wildlife Service. Sea Otter Sea otters are part of the weasel family. 1. Sea otters are usually dark brown, often with lighter guard h… SHARE THE AWESOMENESS. The Southern Sea Otter is found in California. On average, an adult male California sea otter consumes over 4,000 calories daily. Sea otters play a vital role in the health and stability of the nearshore marine ecosystem as a keystone species. Although they hunt on the sea floor, they return to the surface to eat. Cool Facts. They can use a rock to dislodge mollusks and urchins from the rocks where they are attached. Adult sea otters can eat 25% - 30% of their body weight in one day! 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 Scientific Name: Enhydra lutris, or Enhydra lutris nereis Physical Characteristics: 4 feet long, approximately 65 pounds, males - 45 pounds, females Strong canine teeth for tearing food, flat molars for crushing External ears like a sea lion's with excellent hearing capability Southern Sea Otter Enhydra lutris nereis : Fun Facts • Sea otters do not have blubber to keep warm, instead they have very dense fur (up to one million hairs per square inch). Did you know sea otters have built in pouches of loose skin under their forearms to stash extra prey when diving? Sea otters are streamlined marine mammals, which look like a larger, fluffier, version of their freshwater cousins, river otters. Both mating and birth take place in the water, and males have harems of several females. Oct 24, 2018 - Explore Kristen Marie's board "Otter Facts", followed by 103 people on Pinterest. The primary factors limiting population growth and range expansion of southern sea otters in recent years have been density-dependent resource limitation (where the number of sea otters is in equilibrium with available prey) in much of the central portion of the mainland range and white shark attacks in the northern and southern portions of the mainland range. 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. Fun Facts . 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. Seagrasses also provide important benefits, such as nursery habitat for many other species, shoreline protection, and carbon sequestration. Mating and pupping occur throughout the year, but on average across the range, a peak period of pupping occurs from October to January, with a secondary peak in March and April. 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. These marine mammals have a number of characteristics that make them perfectly suited for life at sea. Not all otters use tools, but sea otters use them all the time. Females typically give birth to a single pup, with care provided solely by the pup’s mother for the approximately 6 months until weaning. Otters have some interesting relatives. Average dive depth for California sea otters is about 20 feet. Average length of an adult California sea otter is about 4 ft. A group of sea otters resting together is called a raft. Sea otters also have thick, brown fur that insulates them against the cold waters of the Pacific Ocean. Sea otters have the thickest fur of any marine mammal, averaging 850,000 … Download for your device. 2. 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 related to skunks and weasels. 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. Sea otters use rocks to remove prey from their shells. They have webbed feet, water-repellent fur to keep them dry and warm, and nostrils and ears that close in the water. Because of their consumption of large quantities of marine invertebrates, sea otters play a significant role in nearshore marine ecosystems of the North Pacific Ocean, enhancing not only kelp forests but also seagrass beds. Otters are part of the Mustelidae family, which is a family of … 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. A quick glance at facts about California's southern sea otter population. The southern sea otter (the species found at SeaWorld San Diego) is listed as threatened under the Endangered Species Act. Males can weigh up to 70 lbs. They eat 40 plus different types of species such as clams, urchins, and snails. The southern river otter is listed as endangered, due to illegal hunting, water pollution, and habitat loss. White shark bites are now the leading cause of sea otter mortality in California. US Fish and Wildlife Service The life of a southern sea otter Sea otters spend most of their time near the shore. The sea otter can live its entire life without leaving the water. Under their arms, Sea otters have built in pockets. Average dive duration for California sea otters is about 60 seconds. Sea otters have the densest fur of all mammals with up to 1 million hairs per square inch. Southern sea otter #530 with her male pup. 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. Sea Otter: The Animal’s Predator and Prey . Because of the activity in the sea will never ends because many people rely their life on it … The Southern Sea Otter (Enhydra lutris nereis) also goes by the name California Sea Otter and has the distinction of being one the heaviest members of the weasel family, yet one of the smallest marine mammals. Currently the southern sea otter population is estimated at just above 3,000 animals. Ventura, California 93003, Southern Sea Otter (Enhydra lutris nereis) 5-Year Review: Summary and Evaluation, Big Sur Monterey Sea Otter Study Draft Report, Letter to Deputy Assistant Secretary of the Navy Donald Schregardus FSEIS Comments, Final Supplemental EIS on the Translocation of Southern Sea Otters - Volume 1, Final Supplemental EIS on the Translocation of Southern Sea Otters - Volume 2, Final Recovery Plan for the Southern Sea Otter. Its fur is the densest of any animal on Earth—an estimated 1 million hairs per square inch. 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. Top of the most dynamic and richest marine ecosystems in which sea otters are known to wrap their and! 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