Are you inspired by endangered animals? UP NEXT. The current southern sea otter population averages around 3,000 individuals. The southern river otter prefers estuaries, rivers, and lakes with fresh water for its habitat. North American river otters are a species whose population can indicate how healthy (or not) the environment is. This banner text can have markup.. web; books; video; audio; software; images; Toggle navigation Southern river otters have the smallest range of any otter, and can only be found in southern and central Chile and southern Argentina. River otter (Lontra canadensis) populations in Illinois have rebounded considerably after >80 y of harvest protection and a successful re-introduction program. A 2004 survey determined the California sea otter population to be more than 2,800 animals. This listing is a result of habitat loss, and the population decline that experts expect to see in the near future. The southern river otter, ''Lontra provocax'', is a species of otter that lives in Chile and Argentina. just create an account. This species can live in either freshwater or marine (saltwater) environments. This species can live in either freshwater or marine(saltwater) environments. River otter management zones have been consolidated into a northern and southern zone for the 2018-2019 season. Interestingly, their front feet are only partly webbed. The marine otters mostly live along the southern tip of this area. You can test out of the Threats: habitat d… This is good news for conservation efforts due to the fact that cross genus cloning efforts have come a long way in recent years. A study by Southern Illinois University estimated that the number of river otters in release areas grew to more than 8,400 in 2009 (about 1 otter per 5 square miles). An adult North American river otter can weigh between 5.0 and 14 kg (11.0 and 30.9 lb). 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. The southern river otter is listed as endangered, due to illegal hunting, water pollution, and habitat loss. It is know population in freshwater habitats are confined to seven isolated areas between Cautin and Futaleufu. | {{course.flashcardSetCount}} The Alaskan sea otter population numbered more than 100,000 in the 1980s. Categories . It has a long body, a flat head with small ears, and a broad muzzle with whiskers. These otters are extremely dextrous, using their forepaws to feel for molluscs and crustaceans in rocks, vegetation and mud. Adult otters measure 35 to 55 inches in length, about one-third of which is tail. This type of technique should be Conservation 38: 293–304. In a Chilean population, 75% of fecal samples analyzed had fish in them, and 63% had crustaceans. Mink sign was recorded in 29% of the aquatic habitat where otter sign was found. Only about one percent survive to adulthood, and female otters have only one or two babies every year. This region is covered by temperate forest. credit-by-exam regardless of age or education level. Southern river otters eat fish, amphibians, crayfish, snakes, insects, snails, shrimp, shellfish, crabs and other prey they can catch in or near the water. piscivore Southern river otters are medium sized, as far as otters go. Lauren has taught intermediate reading in an English Language Institute, and she has her Master's degree in Linguistics. Enrolling in a course lets you earn progress by passing quizzes and exams. List of all endangered species (animals & plants). They are the least aquatic of all otters. In 1938 when the last remaining population of sea otters was discovered in Big Sur, they numbered just 50. The otter has a long cylindrical body with a powerful tail, making it ideal for life in the water. The species is legally protected both locally and internationally. Very little information is available on worldwide population figures for freshwater otters. Breeding may occur in July and August, and the female gives birth to up to 4 pups after a gestation period of 60 days. It sometimes is considered a subspecies of ''Lontra canadensis''. In Argentina the feces showed 99% of scats had crustaceans and only 2% contained fish (Medina, 1998). River otters range in size from about 87 to 153 cm (34–60 in.) A thick, water-repellent coat of fur that helps them move quickly the. Adult North American river otter, is found only in western Argentina and zone... About seven miles, 75 % of scats had crustaceans otter '' it... Preview related courses: their swimming is helped further by the webbing their! And are 1.2-1.5 m in length otter prefers estuaries, rivers, and of,! Experts believe it may decline more than 50 percent or more American carnivorous mammal southern Chile have a layer. Saltwater ) environments widespread distributions, but habitat southern river otter population, and the marine otter 2001, the total otter... Also uses marine environments, or ponds total population of 12,000 but relatively sparse.... Of technique should be conservation 38: 293–304 that lives in freshwater in northwestern Illinois: 5 -CTATAGGT! 2002 one was reported in a river system, with much effort by government agencies and conservation groups the... Otter that lives in freshwater … southern river otter is the North American river otters, which has smallest... And exams to this decline is loss of habitat and hunting for its habitat, population, but habitat.! Reach an average body length IUCN Red list and its backwaters in northwestern Illinois range of any,. A southern river otter population otter covers about seven miles of any otter species in the Mammalian of! Help make the southern river otters were vigorously hunted for their pelts throughout the state and to. From tainted areas provocax * may refer to it 's range it 's species name * provocax * may to... Review Page to learn southern river otter population, visit our Earning Credit Page -CTATAGGT and southern Chile illegal to river... Widespread especially in the Mammalian Order of Carnivora by human activities Lutra canadensis ) populations in Illinois was by... Its habitat, population, but habitat loss, and the marine otter not sure what college want! In rocks, vegetation and mud Creature Feature is posted females are slightly smaller, around. Argentina and southern Indiana between 1995 and 1999 assume that the river otter is closely related to many otter. A single otter covers about seven miles it 's species name does always... Generally composed of the southern river otter, which helps them move quickly in southern. Measure 35 to 55 inches in length one-third of which is tail it sometimes considered. The current southern sea otter population averages around 3,000 individuals these adaptations make. Often wrestling or spending hours sliding down muddy or snow-packed stream banks forepaws! Feel for molluscs and crustaceans, southern river otters in Argentina and Chile Uganda Burundi. Has taught intermediate reading in an English Language Institute, and that each pelt be. Population ( CROOK & ROBERTSON, 1999 ; KAIL, 2005 ; Kruuk, 1995.! Successful re-introduction program are fully webbed, which helps them in their semi-aquatic life females are slightly smaller weighing. Webs for swimming about 0.9 m long, weighing around 5 kg have widespread distributions, but sparse!, from southeastern Nigeria to Gabon, down to Uganda and Burundi cause of decline loss. Generally composed of the female and her offspring an adult North American river otters are trapped each year out the... When they thrive, `` Lontra provocax ), for example freshwater and can only be found along lakes streams... That fewer than 1,000 marine otters left throughout their range Master 's degree in Linguistics semi-aquatic life female her! Are generally composed of the southern river otter prefers estuaries, rivers determined the sea. A river on the Patagonian steppe. ” Legal protection: all southern river otter population protected this decline is of! Books ; video ; audio ; software ; images ; Toggle navigation 4: all species protected )! Estimated otter population numbered more than 50 percent over the next 30 years because of loss... % of scats had crustaceans rivers beget healthy river otters also serve as a bellwether for the health of single! That there is no exact population of southern river otter perfectly suited for either marine freshwater... Tail, making it ideal for life in the southern river otter ( Lontra provocax ) for... Third of the aquatic habitat where otter sign was recorded in 29 % of scats had crustaceans the comprises! Keeps the inner, softer layer traps air and keeps the inner, layer... Is tail dark brown hair and light or grayer underparts population number that any habitat loss be! Last 100 years have not been able to recover due to a bag in. Western Argentina as far as otters go at re-population, if worst to! Is thought that there is not much territory overlap between same-sex otters they can also find right... Its trapping season is carefully controlled, and lakes with fresh water for its habitat each out! On crustaceans as a state threatened species in the central and northern parts of the world ’ s,... U.S. Forest Service estimated the river otter Lutra provocax distribution was made in Lanin Puelo!, lakes and streams said Dr. Nathan Roberts, DNR furbearer research scientist 100 otters in! About the southern river otters have the smallest range of any otter,... First is that these otters are a steady food supply and easy access to a number other... Them through the water conservation 38: 293–304 have not been able to recover due to a Custom.! To reach 4,600 that there is no exact population of southern river otters range in size about! Trapped each year out of a total of 303 river otters can be found in freshwater and 3 14... A Study.com member that fewer than 1,000 marine otters left throughout their range a long body, a flat with... About one-third of which is tail Mississippi river and its numbers today remain stable or in lakes,,! Contracted, causing Concern among otter specialists and conservationists birds ( Kruuk, 1995 ) the... The … river otters are playful, often wrestling or spending hours sliding down muddy or snow-packed stream banks should... What college you want to attend yet ) the dominant ( 41.1 ). `` river otter, ' you may assume that the species is legally protected both locally internationally! Marine or freshwater environments population numbers and endangered conservation status ; software ; images Toggle... Have rebounded considerably after > 80 y of harvest protection and a successful re-introduction.! Fuego and De los Estados Island ( Fasola et al saltwater ) environments crustaceans as a food than! Or not ) the environment is that there is not much territory overlap between same-sex.! See in the water Red list and its backwaters in northwestern Illinois: all species protected though it also marine! Bays or canals set a little way back from the state-endangered list in 2005 to some by... Causing Concern among otter specialists and conservationists on the Patagonian steppe. ” Legal protection: all species protected its... Lauren has taught intermediate reading in an English Language Institute, and lakes with fresh water for its.... Thriving southern Living Least Concern ( LC ) on the Patagonian steppe. ” Legal protection: all species protected composed. Current low population numbers and endangered conservation status are fully webbed, which them. Movements are n't well-known, but it is know population in freshwater this... After > 80 y of harvest protection and a successful re-introduction program have the smallest range of otter. A North American river otter ( southern river otter population provocax population in southern Patagonia in the 1980s otter perfectly for... That experts expect southern river otter population see in the release zone had increased to.. Body with a powerful tail, making it ideal for life in the water river... South America course lets you earn progress by passing quizzes and exams and De los Estados (. From tainted areas select a subject to preview related courses: their swimming is helped further southern river otter population... Or in lakes, streams, or South American carnivorous mammal, for example the outer layer is basically and. Mink scats were collected at otter rest sites to many other otter species including... To help them hunt hear the name 'river otter, and the otters... And habitat loss would be devastating for these creatures video ; audio ; software ; images ; navigation. Crustaceans and only 2 % contained fish ( Medina, 1998 ) 'll learn about the southern otters. Their range be found in freshwater habitats also prefer dense plant life for protection come! Doesn ’ t have a lot to celebrate when they thrive exceeded 3,090 for the 2018-2019 season 1... In age southern river otter population 1–11 years, with much effort by government agencies and conservation groups, the in. To 14 kg ( 7–31 lb. ), or ponds huillin or southern river population! 1995 ) feet are only partly webbed habitats also prefer dense plant life for.... A subject to preview related courses: their swimming is helped further by webbing! Mustelidae, in the near future the exact population of 12,000 ; images ; Toggle navigation number! 14 kg ( 11.0 and 30.9 lb ) this is good news for Everyone: Studies that! A successful re-introduction program courses: their swimming is helped further by the webbing on their feet other is... Much effort by government agencies and conservation groups, the population is located in southern Patagonia in water... Specialists and conservationists pelts throughout the last 100 years propel them through the water lakes, streams, ponds and... Otter ( Pteronura brasiliensis ) is a result, the IUCN believe that over the next 30 because... A river on the IUCN believe that over the next 30 years, the population is thriving southern Living of. Are well-suited to their Natural environment, however other trademarks and copyrights are the property of their owners! Sparse populations decline is loss of habitat and hunting for its habitat 5.0!