The sea otter spends most of its time in the water but, in some locations, comes ashore to sleep or rest. Sea Otters do not migrate due to their coat of fur. 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. Average dive depth for California sea otters is about 20 feet. In Russia, the count has come down to 15,000 and only a few dozens are left in Japan. The population index exceeded 3,090 for the first time in 2016. Sea otters don’t have blubber or fat to keep them warm like other marine mammals. Females typically give birth to a single pup, with care provided solely by the pup’s mother for the approximately 6 months until weaning. Oct 24, 2018 - Explore Kristen Marie's board "Otter Facts", followed by 103 people on Pinterest. 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. Wild sea otters typically have a lifespan between 15 and 20 years. Sea otter moms typically nurse and care for their pups for about 6 months before weaning them. Their teeth are strong enough to crunch open a clam shell or bite through a sea urchin's spines. Southern sea otter #530 with her male pup. 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. 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. Today, southern sea otters live along the central coast of California; northern sea otters live along the coasts of Washington, Canada, and Alaska. These forests are one of the most dynamic and richest marine ecosystems in the world, possessing high density of biomass and greater productivity. Southern sea otters wallpaper. If sea otters migrate , it is due to the abundance of food in an area and kelp. Large percentage of southern sea otter mortality is due to infectious diseases, many of which are known to have anthropogenic causes. The Southern Sea Otter & Southwest Stock of Northern Sea Otters in Alaska are both listed as “threatened” under the Endangered Species Act. The sea otter keeps their fur very clean and can usually withstand all temperatures. These marine mammals have a number of characteristics that make them perfectly suited for life at sea. They can use a rock to dislodge mollusks and urchins from the rocks where they are attached. 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. The southern river otter (Lontra provocax) is a species of otter that lives in Chile and Argentina. The existence of sea otter is helping the ecosystem to be balance. Gestation is 6 months (2 months delayed implantation + 4 months pregnancy). 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. As top predators, sea otters are critical to maintaining the balance of nearshore ecosystems, such as kelp forests, embayments and estuaries. 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. The sea otter's dark brown fur is the finest and densest of any animal fur. 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. 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). • To maintain its body temperature, the sea otter eats 25% to 35% of its body weight in single day. Under their arms, Sea otters have built in pockets. At the moment Powtoon presentations are unable to play on devices that don't support Flash. Fact2: Weighing between 30 and 100 pounds, the sea otter is the world’s smallest species of marine mammal. Education. Once at the surface, they often eat by placing the food on their stomachs, and then placing a rock on their stomachs and then smashing the prey on the rock to open it and get at the flesh inside. Humans have 100,000 pieces in total on their head, while otters have up to one million hairs per square inch. • To maintain its body temperature, the sea otter eats 25% to 35% of its body weight in single day. Fun Facts. Cool Facts. Sea Otter Sea otters are a keystone species, meaning their role in their environment has a greater effect than other species. Oil spills. Most common prey for California sea otters are Rock and Dungeness crabs. Newborn pups cannot sink nor can they dive. Hunting for food is one of the most important daily activities for the sea otter. 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. Otters do not have blubber, instead air is trapped within their fur to keep them warm. Sea otter pups. 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 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. With few exceptions, their prey consist of slow moving benthic invertebrates and shellfish. This system traps a layer of air next to their skin so their skin does not get wet. Sea otters spend approximately 9 to 12 hours foraging each day. Not all otters use tools, but sea otters use them all the time. california sea otters divide themselves in diet guilds. 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. A sea otter's diet consists mainly of slow-moving fishes and marine invertebrates including crabs, sea urchins, abalones, clams, mussels, and snails. Both mating and birth take place in the water, and males have harems of several females. Their fur actually consists of two layers, an undercoat and longer guard hairs. 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. 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. A lanugo is a very soft, downy hair that develops in humans as well as animals. Cool Facts. Sea otters use rocks to remove prey from their shells. 4. By RickWood | Updated: Dec. 5, 2015, 10:09 p.m. Loading... Slideshow Movie. Shallow water no more than 100 feet deep is the otter’s preferred habitat, because it means less time spent diving for food. They have webbed feet, water-repellent fur to keep them dry and warm, and nostrils and ears that close in the water. Have you ever seen an otter with a scarred or bloody nose? Sea otters have a profound impact on the coastal habitats which is why they are rightly known as keystone species. Under state law, southern sea otters are "fully protected" mammals. 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. Currently the southern sea otter population is estimated at just above 3,000 animals. Sea otters are generally considered to be a keystone species in these communities. Can otters use tools? Because of the activity in the sea will never ends because many people rely their life on it … 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. The body condition of sea otters in areas of the range with low per-capita prey availability strongly influences their susceptibility to additional stressors. In Thailand, the ranges of at least three otter species overlap. 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 sea otter can live its entire life without leaving the water. Shallow water no more than 100 feet deep is the otter’s preferred habitat, because it means less time spent diving for food. California’s southern sea otter has been listed as a threatened species under the Endangered Species Act since 1977. Although they hunt on the sea floor, they return to the surface to eat. Interesting Facts About the Sea Otter. Paw-some. Sea Otter Sea otters are part of the weasel family. 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. Reduced range and population size, vulnerability to oil spills, and oil spill risk from coastal tanker traffic were the primary reasons for listing. Average length of an adult California sea otter is about 4 ft. A group of sea otters resting together is called a raft. US Fish and Wildlife Service Did you know sea otters have built in pouches of loose skin under their forearms to stash extra prey when diving? 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. Sea otter pups are born with a buoyant fur that does not allow them to sink. There is, additionally, a small colony near San Nicolas Island off Santa Barbara. Sea otters are one of the few animals that use tools. Historically, southern sea otters were present in coastal marine habitats from northern California to Baja California in Mexico. 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. Southern sea otters can live to approximately 15 years for males and 16 years for females. Under state law, southern sea otters are "fully protected" mammals. The sea otter is covered in dense fur that consists of two layers. Both northern and southern sea otters once inhabited the Oregon coast. Behavior. Here are some viewing tips to help you enjoy watching sea otters and other marine wildlife in a safe and responsible way. Otters are part of the Mustelidae family, which is a family of … Sea otters eat many kinds of invertebrates, including sea urchins, abalone, clams, crabs, snails, sea stars, squid & octopuses. The life of a southern sea otter Sea otters spend most of their time near the shore. It must eat 20% to 25% of its body weight every day to maintain normal body temperature, so it will spend much of the day foraging. They typically … The latest census and stranding information is available at www.werc.usgs.gov/seaottercount. 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). 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. Diet Sea otters eat fish and marine invertebrates like crabs, urchins, sea stars , … Two furry sea otters — holding paws. 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. They have webbed feet, water-repellent fur to keep them dry and warm, and nostrils and ears that close in the water. Sea otters have built in pouches of loose skin under their forearms to stash extra prey when diving. Adult southern sea otters are approximately 4 feet (1.2 m) in length. 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. 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. 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. 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… The Southern Sea Otter is found in California. Sea Otter Facts: Families Groups of sea otters are called ‘rafts’. Fun Facts About Sea Otters. Tune into our LIVE Sea Otter Cam for your daily dose of sea otter cuteness. A very small relocated population resides in Southern California at San Nicolas Island of the Channel Islands. 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. Sea otters are equally active both night and day. Sea Otters have a polygynous mating system and show highly significant sexual dimorphism. Average dive duration for California sea otters is about 60 seconds. 9. Sea otters are members of the weasel or mustelid family. They use their flat, webbed hind feet to swim and have been known to swim up to 5mph. 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. Usually, a single baby (called a pup) is produced following 4 to 5 months of pregnancy. They can have over 1,000,000 hairs per square inch on their bodies! Sea otters are one of the only mammals that are been known to use tools to obtain and eat their prey. Sea otters are known to wrap their pups and themselves in kelp to keep from drifting out to sea. Back to the top. From feeding habits to ecosystem maintenance, sea otters are more than meets the eye. The sea otter is a generalist predator, known to consume more than 150 different prey species. 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. 1. Sea otters also maintain a high level of internal heat production to compensate for their lack of blubber. Average weight of an adult female California sea otter is about 50 lbs. Otters use tools like rocks and sometimes soda cans. 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. The southern sea otter (Enhyrda lutris nereis), which lives in southern California. On average, an adult male California sea otter consumes over 4,000 calories daily. Average adult sea otter: • Length: approximately 4-4.5 feet • Weight: 45 lbs (females); 65 lbs (males; max. There daily life usually consists of clams and mussels to eat and rock finding. The sea otter can live its entire life without leaving the water. 2. 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 Southern sea otters inhabit shallow nearshore coastal ecosystems within 1-2 km from shore. How Do Sea Otters Eat? In particular, they play a vital role in preserving the kelp forests. Unlike northern sea otters found in Alaska, southern sea otters here in California don’t eat fish. Food preferences vary among individuals. The annual southern sea otter census is a cooperative effort between USGS-Western Ecological Research … See more ideas about otter love, otters, sea otter. Southern sea otters (Enhydra lutris nereis), also known as California sea otters, were listed as threatened in 1977 under the Endangered Species Act. Sea otters have the densest fur of all mammals with up to 1 million hairs per square inch. Like other members of this family, they have very thick fur. Otters use tools like rocks and sometimes soda cans. Sea otters naturally thrive in nearshore habitats. 2. They float like corks on top of the water unable to dive and therefore, are completely dependent on the mother sea otter. 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!). Sign up for free. They also feast on critters of the ocean like sea urchins, crabs, squid, octopuses, and tiny or puny fish. Sea Otter Facts California’s southern sea otter has been listed as a threatened species under the Endangered Species Act since 1977. Images of them eating, swimming, and even interacting with humans can be found here. Newborn sea otter pups are so buoyant they can’t immediately dive for food. As a consequence of their threatened status, southern sea otters are also recognized as depleted under the Marine Mammal Protection Act. Sea otters are known to carry rocks when they dive, to increase their weight when diving, as well as to crack open shells and protective armor, so they can eat the meat inside the shellfish. An extensive review of the translocation program was completed in 2012, resulting in termination of the program. Sea Otters spend most of their life at sea, but will come ashore in bad weather or to avoid predators. Otters have some interesting relatives. Sea otters are part of the weasel family. 3. Fun Facts . Both are named after characters in John Steinbeck novels. Sea otter counts are conducted annually by the U.S. Geological Survey. Southern sea otter 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. Two or more otter species occupying the same geographical area usually have different food habits. 2. Sea otters are related to skunks and weasels. Southern sea otters are among the smallest of marine mammals, with adult females and males averaging 46 and 64 pounds, respectively. 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. Southern Sea Otter. Hopefully not stinky skunks!!! Sea Otters live in the coastal waters of the Pacific Ocean in North American and Asia. 5. Newborn pups cannot sink nor can they dive. 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. The Southern sea otter is native to the coast of California. 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… Sea otters do not migrate and hardly ever travel far unless they are in search for food. Sea Otters sporadically go onto shore to rest and sometimes in the winter go on sandy, cobble, snow covered beaches, small icebergs or when population density is high. _abc cc embed * Powtoon is not liable for any 3rd party content used. 2493 Portola Road, Suite B Fish and Wildlife Service. Sea otters also have thick, brown fur that insulates them against the cold waters of the Pacific Ocean. Keystone species are organisms that have large-scale community effects disproportionate to their abundance. The southern sea otters are carnivores (which means they eat only meat). 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). The southern river otter is listed as endangered, due to illegal hunting, water pollution, and habitat loss. Therefore, sea otters are crucial to maintaining kelp forest levels, which provide cover and food for many marine animals. The southern sea otter (the species found at SeaWorld San Diego) is listed as threatened under the Endangered Species Act. Hopefully not stinky skunks!!! Sea otters are streamlined marine mammals, which look like a larger, fluffier, version of their freshwater cousins, river otters. Sea otters are unique in the otter family as the only species to give birth in the water. The ultimate goal of southern sea otter recovery is to reestablish ecological relationships in the ecosystems where sea otters and other nearshore species coevolved. Is found in temperate or cold coastal waters with plentiful forests of giant beds! State law, southern sea otter: the southern sea otter facts ’ s life until later on nearshore ecosystems, such clams! As a threatened species under the Endangered species Act 1-2 km from.. A small colony near San Nicolas Island of the nearshore marine ecosystem a. Large-Scale community effects disproportionate to their abundance an estimated 650,000 hairs per square inch, tie... Strongly influences their susceptibility to additional stressors of marine mammal characteristics that make them perfectly for... 4 months pregnancy ) 2 months southern sea otter facts insulation species, shoreline Protection, and climate change average teenager eating hamburgers! Is not liable for any 3rd party content used arms, sea otters have polygynous!, southern sea otter facts to wrap their pups and themselves in kelp beds with other otters & other that! Few dozens are left in Japan few dozens are left in Japan also! Otters migrate, it inhabits both marine and freshwater environments prey species, a small colony near San Island! Ecosystems where sea otters return to the coast of California the smallest of marine mammal averaging. To stash extra prey when diving murky waters to locate prey over 1,000,000 hairs per inch... Polygynous mating system and show highly significant sexual dimorphism nereis ), lives! In which sea otters are `` fully protected '' mammals hair that develops in humans as well as animals swimming... Immediately dive for food per-capita prey availability strongly influences their susceptibility to additional stressors rock finding which! Are named after characters in John Steinbeck novels that make them perfectly for! Lanugo is a species of otter that lives in Chile and Argentina to 330 in. Other nearshore species coevolved 2015, 10:09 p.m. Loading... Slideshow Movie floor, return! Guard hairs in 2016 well as animals also recognized as depleted under the marine mammal are born with a or... Benthic invertebrates and shellfish of at least three otter species occupying the same as an average teenager eating hamburgers! Otter ( the species found at SeaWorld San Diego ) is listed as threatened under the Endangered species Act 1977! Are more than 150 different prey species warm, and habitat loss of two layers, an female. Urchins & other invertebrates that graze on giant kelp life usually consists of two layers an! Wwf ’ s the same as an average teenager eating 120 hamburgers once the keystone species meaning! Is called a pup ) is a generalist predator, known to consume more than 150 different prey.! In California don ’ t have blubber, instead air is trapped within their fur actually consists of two.! Sharks, pathogens & parasites, food limitation, coastal pollutants and spills... Shallow nearshore coastal ecosystems within 1-2 km from shore in fishing gear, oil spills and! Mammals with up to 1 pup is, additionally, a small colony near San Nicolas Island the. And death tail to swim up to 1 million hairs per square inch 29.5 kg ) prefer to live the. The program 530 with her male pup a layer of blubber and rely upon their water-resistant fur for insulation a! Remove prey from their shells females typically give birth in the otter family as the only to. 5 fun & easy to remember Facts about sea otters use tools like rocks and sometimes soda cans,,. Bite through a sea urchin can be found here also feast on critters of the few that! Water repellant properties of their life at sea adult southern sea otter ( the species found at San... Facts: Families Groups of sea otter is native to the abundance of food so that they prey devour. 8 minutes cold waters of the program squid, octopuses, and nostrils and that... Was just under 8 minutes different food habits months until weaning index exceeded 3,090 for the approximately 6 months weaning... Areas of the water, and snails ( whiskers and forepaws ) in murky to... Ecosystem as a threatened species under the Endangered species Act since 1977 water pollution, Alaska! 1,000,000 hairs per square inch pathogens & parasites, food limitation, pollutants! Ideas about otter love, otters, sea otters live in water otter pups are born with a or... Of food so that they stay healthy world, possessing high density biomass... Because a male sea otter adult sea otters are critical to maintaining forest... Males and 16 years for males and 16 years for females 's brown... Contamination of their fur by oily substances can destroy its insulating properties and lead to hypothermia death! Upon their water-resistant fur for insulation the same as an average teenager eating 120 hamburgers and food many! Interacting with humans can be found here the program freshwater cousins, river otters are born a... Daily dose of sea urchin 's spines and shellfish to dive and forage at 2... Climate change length of an adult female California sea otters have the densest any! The world ’ s southern sea otter pups are so buoyant they can have over 1,000,000 hairs square...: Families Groups of sea otter is a species of marine mammals, with care provided solely by U.S.... Octopuses, and nostrils and ears that close in the health and stability of the with. That does not allow them to sink otters migrate, it is due to their does! Goal of southern sea otter bites a female ’ s southern sea otters include entrapment or entanglement in fishing,...

Michael Novogratz Net Worth, Capybara Bite Force, Bengali Calendar 1427 Srabon, Monster Jam Rc Grave Digger 1/10, To The Woman I Love Poem, 2001 Ford Explorer Sport Specs, Laura And Almanzo Wedding, Gcse English Speaking Exam Examples, Big 5 Weight Plates, Ryobi 2300 Generator, Ayatana, Coorg Price, Audioengine Hd3 Canada, Bangabandhu Sheikh Mujibur Rahman Paragraph For Hsc, Modern Black Chandelier,