Geometry.Net - Basic_O: Otters River

Animals - Native Florida - The Brevard Zoo
river otters North American river otters are found in Alaska, across northernCanada and US to Nova Scotia, south to California and areas in Arizona.
http://www.brevardzoo.org/animal_html/native_florida/details.cfm?ID=12
Restoring Wolves, Bears, Lynx, River Otters And Wolverines
A website examining efforts to restore native carnivores to the Southern Rocky Mountains. Species Category Society Issues United States Rocky Mountains that support our mission Restoration Our program to restore wolves, grizzly bears,lynx, river otters, wolverine and other native carnivores Protection Our
http://www.sinapu.org/

Extractions: Within this website resides a wealth of information about the efforts of citizens to restore and protect native carnivores to the Southern Rocky Mountains. This grassroots campaign, led by a non-profit group named "Sinapu," encompasses many facets of the evolving debate over the use (and abuse) of public lands and wildlife. We hope you find your time here valuable, and that you'll consider joining us in this effort. Dig deeper here and you'll find information about wolves, coyotes, grizzly bears, wolverine, lynx, river otter and the ecosystems these creatures hold together. Weaving these animals back into the fabric of Nature is a process we call "rewilding." We hope this concept inspires you to think deeper about your own connection to the Wild.
Restoring Wolves, Bears, Lynx, River Otters And Wolverines
More river Otter (Lutra canadensis). river otters occupy a fractionof their former habitat in the region. A toplevel carnivore
http://www.sinapu.org/Pages/Restore.html
The River Otter
river otters have existed for a long time. Their fossils river otters aremost active from early evening through early morning. They are
http://www.luddist.com/otter.htm

Extractions: THE RIVER OTTER (Lutra canadensis) The river otter, found in the United States and Canadian waterways, is a sub-species of the Otter (Lutrinae), which belongs to the martens (Mustelidae) family. The river otter is called Nutria del Canada or Nutria Norteamerica (Spanish), Lontre du Canada (French), Kanada-Otter or Nordamerikanischer Fischoter (German) and Lontre Canadese (Italian). River otters have existed for a long time. Their fossils date back to the Pleistocene period. Archeological remains have been uncovered from 200 BC to the mid-1400s. Otters are expert swimmers and divers, swimming at an average speed of seven miles per hour and staying underwater for up to 2 minutes. Unlike muskrats or beavers, the otter barely makes a ripple when swimming or splash when diving. Their specially built ears and nose have a valve-like skin that closes and keeps the otter watertight underwater. The otters nose is diamond shaped, with two nostrils at the bottom of the nose. Otters communicate with their noses, mainly by smelling marked territories. When they do talk, it is with chirps, chuckles, grunts, whistles and screams. River otters are most active from early evening through early morning. They are active all year, even in the cold Alaskan winters. Otters play more than most wild animals wrestling, chasing other otters, tossing and diving for rocks and clamshells, toying with live prey and occasionally, sliding.
River Otters
Former Project title The Genetic and Genotoxic Effects of Pesticides onriver otters in the SacramentoSan Joaquin river Delta of California.
http://genome-lab.ucdavis.edu/People/TashaBelfiore/river.htm

Extractions: Former Project title: The Genetic and Genotoxic Effects of Pesticides on River Otters in the Sacramento-San Joaquin River Delta of California This is the original dissertation research project of Natalia Belfiore formerly underway out of this laboratory. As of 1998, the project had received funding from a variety of sources. Numerous permits, including animal care and use approval, were obtained and modified continuously throughout the year. Throughout the summer and fall of 1998, I spent many weeks at the Grizzly Island Wildlife Area near Suisun/Fairfield, California, learning to trap and handle otters. I caught and sampled 13 different otters, with the help of a variety of field assistants , before being shut down early in November of 1998. The project was forced to be revised due to the passage on November 4, 1998, of Proposition 4 , which bans the use of foothold traps for any purpose in the state of California. Foothold traps can be and were used humanely to capture river otters in this project. I used the smallest possible traps that are strong enough to hold an otter. Otters were immobilized with anesthetic drugs, checked for injuries, sampled (blood, fur clippings, buccal swabs), tagged (eartags), given fluids, held until fully recovered, and
IA DNR: Iowa River Otters Explore New Homes
Due to a unique partnership involving Iowa fur trappers and the Department of NaturalResources, wild river otters are continuing to expand their range across
http://www.iowadnr.com/news/03jan/otter.html

Extractions: Iowa Department of Natural Resources CLEAR LAKEDue to a unique partnership involving Iowa fur trappers and the Department of Natural Resources, wild river otters are continuing to expand their range across Iowa. "Our current mission is to introduce a population of native, Iowa-produced river otters into new watersheds that do not currently support the animals," said DNR Furbearer Resource Specialist, Ron Andrews. "Our program design is really quite unique. Essentially, we have enlisted the aid of licensed Iowa fur takers to find and capture otters within watersheds where the furbearers are most numerous," said Andrews. "The otters are live trapped by selected trappers using foot hold traps. When an animal is captured, the trapper notifies the DNR. We transfer the otters into cages and transport them to their new home. The whole process is usually complete within a few hours." Trappers are paid an expense fee of $100 for each otter they trap for release. According to Andrews, trappers are the most efficient and cost effective way for the DNR to obtain releasable otters.
Export Of River Otters Taken In Missouri
Proposed rule to announce proposed findings by the CITES Scientific and ManagementAuthorities of the US on the export of river otters taken in the State of
http://international.fws.gov/fedregister/missouri.html

Extractions: DEPARTMENT OF THE INTERIOR Fish and Wildlife Service 50 CFR Part 23 RIN 1018-AF23 Export of River Otters Taken in Missouri in the 1998-1999 and Subsequent Seasons AGENCY: Fish and Wildlife Service, Interior. ACTION: Proposed rule. SUMMARY: The purpose of this proposed rule is to announce proposed findings by the CITES Scientific and Management Authorities of the United States on the export of river otters taken in the State of Missouri, and to propose the addition of Missouri to the list of States and Indian Nations approved for export of river otter skins. This approval is on a multi-year basis. The Service proposes to apply these findings to river otters taken in Missouri during the 1998-1999 season and subsequent seasons, subject to the conditions applying to other approved States. We appreciate your comments on this proposed rule. DATES: The Service will consider comments received on or before October 30, 1998, in making its final determination on this proposed rule. ADDRESSES: Please send your correspondence concerning this proposed rule to: Office of Scientific Authority; U.S. Fish and Wildlife Service; Mail Stop ARLSQ 750; 1849 C Street, NW; Washington, DC 20240; or via
Homosassa Springs Wildlife State Park - River Otters
Homosassa Springs Wildlife State Park is the home river otters. Homosassa creatures!!North American river otters Scientific Name Lutra canadensis.
http://www.hsswp.com/animals/otter.html

Extractions: Just An-Otter Day in Paradise!! Baby river otters usually emerge from their dens into anonymity. But at the Homosassa Springs Wildlife State Park, three frisky otter cubs are getting a lot of attention these days. A protective mother otter occasionally brings her three playful babies out of their den to an open exhibit area with a pond. They were born in December, but first spotted on January 20, 1998. They still spend most of their time in the den, but will be outside more frequently as they get older. The baby otters love to swim back and forth, and torpedo themselves into the water. The three will get like a ball and spin around. And they'll jump on the mothers back. Come by and say hello to these cute little creatures!! North American River Otters: Scientific Name: Lutra canadensis This playful animal is found from Mexico north to Alaska. They are especially abundant throughout Canada. Otters inhabit rivers, streams, lakes, ponds, marshes and inland waterways. These social animals may make their home in a hollow log or abandoned beaver lodge, however they usually dig a hole in the bank of a stream or lake. This hole leads to a leaf-lined den. Otters can swim 3-4 mph underwater and up to 6 mph on the surface. They can stay submerged for up to 4 minutes. They have short legs and webbed toes to aid them in swimming. The otter's body is very streamlined and flexible, generally 18 to 24 inches in length with the male being up to 30% larger than the female. Their coat is water repellent, short, smooth and dense. Overall their color is dark brown but underparts, throat and cheeks are somewhat lighter.
Details Of The Rivers Of Northumberland With MAP
something for everyone. Black grouse and curlew can be found in upperreaches of the river along with otters. river pollution of
http://www.northumbrianrivers.co.uk/map.html

Extractions: Designated as a Site of Special Scientific Interest, it holds unique assemblages of flora and fauna including otters, kingfishers and curlew. Its upper stretches flow through the wilds of the Northumberland National Park offering opportunities for riding and walking. Coquet Island, at the mouth of the river, has the last breeding site of roseate tern in Britain.
Sherpa Guides | Chesapeake Bay | Sidebars | River Otter
Although not as agile on land as its weasel cousins, river otters (Lutra canadensis)will cross large land expanses to reach another lake or river with better
http://sherpaguides.com/chesapeake_bay/sidebars/river_otter.html

Extractions: Longstreet Highroad Guide to the Chesapeake Bay By Deane Winegar Online Guides Buy the Book About Sherpa Guides Credits ... Sidebars This large, playful member of the weasel family makes a den with an underwater entrance in stream banks. Fish, frogs, snakes, crayfish, blue crabs, and even young muskrats are on the menu for this web-footed aquatic mammal. Although not as agile on land as its weasel cousins, river otters ( Lutra canadensis ) will cross large land expanses to reach another lake or river with better hunting opportunities. Slick troughs in snow or mud on a river bank will sometimes give away the presence of this secretive critter. Read and add comments about this page Wildlife Expeditions - Canoe and kayak the waters between Chincoteague Island and Assateague National Wildlife Refuge - Virginia. We offer guided eco-tours - rentals - and sales. We practice the philosophy of bonding with one another and our enviroment in a manner in which all of us return enriched by this waterborne experience. Family owned and operated. Open year round. Large Groups Welcome. We love families. We are adventure. Family Bicycling in the Washington Baltimore Area - This book contains descriptions of many bicycle rides in the Chesapeake Bay area that are suitable for families with small children.
Jean Ann Edwards, River Otters Prints
otters. river otters. Bears Buffalos Deer Fish Mountain Goats/Moose otters Swamp Scene Turkeys/Quail Waterfowl Price
http://www.jeanann.us/otters.html
WildWNC.org : Animals : RIVER OTTER
defense. DESCRIPTION river otters are long, muscular, and very streamlinedanimals, well adapted for their aquatic existence. The
http://wildwnc.org/af/riverotter.html

Extractions: The River Otter is an aquatic member of a group of animals known as Mustelids. Other Western North Carolina mustelids are the skunk, weasel, and mink. Members of this family are characterized by the presence of strong-smelling anal glands which are used for communication between individuals and sometimes for defense. DESCRIPTION River Otters are long, muscular, and very streamlined animals, well adapted for their aquatic existence. The brown to brownish-gray fur is short and water repellent. The ears are small and lie flat against the side of the head. An otter's feet are strongly webbed and the tail is long and rudder-like. A clear, third eyelid, called a nictitating membrane, covers the otter's eyes when swimming underwater. This gives protection to the eye but allows the otter to see clearly. A typical adult otter weighs between 1 1 and 23 pounds and can measure 3 to 4 feet in length. RIVER OTTER
January 2002 - RIVER OTTERS MAKING A COMEBACK
river otters MAKING GREAT COMEBACK IN OHIO Wildlife Division ProposesRemoving otters From Endangered Species List. COLUMBUS, OH Ohio's
http://www.ohiodnr.com/news/jan02/0110ottercomeback.htm

Extractions: Wildlife Division Proposes Removing Otters From Endangered Species List COLUMBUS, OH Ohio's river otter population is healthy and growing, according to the Ohio Department of Natural Resources (ODNR) Division of Wildlife. Last night, state wildlife biologists proposed to the Ohio Wildlife Council that otters be removed from Ohio's endangered species list. The Wildlife Council will vote on the proposal to remove otters from the endangered species list on April 10. River otters are native Ohio furbearers, once common throughout the state. Poor water quality, stream pollution and deforestation during the late 1800s and early 1900s caused their disappearance from Ohio. Clean rivers, streams, ponds and lakes with abundant forage fish are the key ingredients for otters' survival. Now found in 52 counties, river otters are known to be reproducing in at least 10 watersheds. Otters can grow as large as three feet in length and Ohio otters typically weigh 20 to 25 pounds, with males being somewhat larger than females. Adult females normally give birth to three or four pups per year, but have been known to give birth to as many as six. In 1986, the ODNR Division of Wildlife began reintroduction efforts by acquiring otters from other states and releasing them into watersheds that had been identified to have suitable otter habitat. Targeted watersheds were estimated to be much cleaner than they had been in the early 1900s.
Otters To Test River Purity
otters to test river purity. Fred Allen. An Build a series of artificialholts for otters wherever a river seems unpolluted. otters
http://www.globalideasbank.org/BOV/BV-335.HTML

Extractions: An Otter Society could be formed to build a series of artificial holts for otters wherever a river seems unpolluted (natural holt sites often cause flooding and have been removed). Otters would then become the guardians of the water's purity. Otters, for instance, are excessively sensitive to PCBs in the water. If one in five of the holts were supplied with pet otters and these failed to breed and spread, then this would suggest that the water is PCB polluted. Apart from preventing otters breeding successfully, PCB does not seem to hurt them (although a female otter giving birth may die from the PCB suddenly liberated by fat mobilisation). With water due to be sold off, 'otter bioassay' as outlined here may be a helpful way of monitoring the private companies' claims. In the North Sea, 'seal bioassay' appears to be occurring willy nilly. Distemper never killed seals before, and it may well prove to be a PCB-driven immune deficiency. Fred Allen, 13 Shelly Row, Cambridge, CB3 OBP. A team at Essex University has now pioneered a method of analysing otter droppings for PCBs, aldrin, lindane and other pollutants.
The River Otter
river otters inhabiting marine environments make extensive use of, andconcentrate their activities in, intertidal and subtidal zones.
http://www.absc.usgs.gov/nvp/rotter.htm

Extractions: The River Otter (Lutra canadensis) From the Exxon Valdez Oil Spill (EVOS) Trustee Council Fiscal Year '95 Project Description: " River otters inhabiting marine environments make extensive use of, and concentrate their activities in, intertidal and subtidal zones. These high trophic-level carnivores are long-lived, and occur at densities of 0.2-0.8 otters/km of shoreline throughout the Gulf of Alaska. River otters are extremely sensitive to aquatic pollutants, yet continued to reside within the area of oil-contaminated shorelines in PWS, Alaska following the spill. These characteristics make river otters an excellent model for assessing effects of marine pollution on mammals, and provide an overall index to the health of the nearshore ecosystem. River otters living in marine environments consume a diet dominated by marine fishes, which they prey upon in intertidal and subtidal zones; they also consume a wide variety of marine invertebrates. Such nearshore areas are the most often affected by pollution. For instance, the spill contaminated extensive areas of the intertidal and subtidal environments, which was reflected in a loss of dietary diversity for otters inhabiting oil-contaminated shorelines. Likewise, river otters living in oiled areas exhibited a significantly lower body mass (when controlled for sex and total body length) than did otters inhabiting unoiled areas. Otters have extremely large home ranges (20-40 km of shoreline), and hence integrate effects of pollution over wide areas.
Knoxville Zoo River Otter
North American river otters range from solitary to highly social in their behavior. riverotters can also see equally well above and below the water.
http://www.knoxville-zoo.org/riverotter.htm

Extractions: Home General Information About Us Zoo Shop ... Special Events Animal Profiles River Otter Lutra canadensis latraxina Order: Carnivora Family : Mustelidae Subfamily : Lutrinae Genus: Lutra Species: L. canadensis Subspecies: L. c. latraxina Gestation : 245-380 days Longevity : Up to 12 years in wild and 21 years in captivity Range : Most parts of North America except for the mid and south western parts of the United States. North American river otters range from solitary to highly social in their behavior. They are normally solitary, only pairing up for a short while during the breeding season. They eat fish, frogs, salamanders, crayfish, crabs and other aquatic invertebrates. River otters live in all types of inland waterways, estuaries and marine coves. Weighing 6 to 30 pounds, and their ears and nostrils can be closed while underwater. River otters can also see equally well above and below the water. River otters swim by moving their hind legs and tail. They can remain underwater for up to 5 minutes. When on land, they can run up to 18 mph. River otters have a thick layer of fat and more dense fur than any other land mammal.
River Otters Of Chile
EARTHWATCH EXPEDITION river otters of Chile Research Mission Monitoring otterspopulation and habitat use to create a conservation program to expand their
http://www.earthwatch.org/expeditions/medinavogel_02/meetthescientists.html

Extractions: Despite its scientific importance as the top predator in Chilean freshwater ecosystems, the larger of the Chilean mustelids, and the only Chilean aquatic mammal, much remains to be learned about this unique mustelid. This largely reflects the fact that the Southern River Otter is difficult to study and observe in the wild because of its aquatic, mainly nocturnal, and elusive lifestyle. Your expedition will build on this long-term monitoring of key Southern River Otter populations, will contribute to the implementation of distribution maps into practical otter conservation, and thus will significantly contribute valuable information to one of the most ambitious Chilean habitat conservation and restoration programs.
Distinguishing Between Sea Otters And River Otters
You Otter Know the Difference Distinguishing between sea otters and river otters riverotters also have webbed hind paws but they are comparatively small.
http://7thfloormedia.com/projects/safari/newsletter/friday/otter2.html

Extractions: Distinguishing between sea otters and river otters When is an otter in the sea not a sea otter? When it's a river otter of course. Confused? It's a common mistake to confuse sea otters with their cousins the river otter because river otters live around either fresh water or the ocean. In fact, there are so many river otters around our seashores, and they are so active in the sea, that people are easily convinced the otter they see is the sea otter. But once you know what to look for, you'll easily tell river and sea otters apart. If you see an otter moving easily on land then it's a river otter. Their long legs make walking easy and they frequently move to and from their dens in the forest, or playfully slide down their otter runs into the sea. Sea otters are true ocean-dwelling marine mammals, almost never coming out of their ocean home. They are really quite clumsy on land and are perfectly capable of spending their entire lives out at sea. Seeing an otter in the water is one of the best ways to identify it. At the surface, river otters swim belly- down and expose very little of their back, while sea otters swim belly-up and float high in the water due to their air-filled fur. Look closely at the otter paws, and you can see major differences. The sea otter's hind paws are more flipper-like and are webbed right to the tips of their toes. Their longest toe is on the outside to help in swimming. This longer outer toe makes walking on land pretty tough. The front paws of the sea otter are narrow with extendable claws for hanging onto slippery fish or spiny urchins. River otters also have webbed hind paws but they are comparatively small. Both front and hind paws are more circular in shape because they are adapted for land travel.
RIVER OTTERS, FISHERS NOW FIRMLY ESTABLISHED IN PENNSYLVANIA
Penn State Information and Communication Technologies News Release titled RIVEROTTERS, FISHERS NOW FIRMLY ESTABLISHED IN PENNSYLVANIA. October 2, 2001.
http://aginfo.psu.edu/News/october01/otter.html
EEK! - Critter Corner - The River Otter
Downhill slides are a bonus, but otters rarely go back to the hilltop to slide downagain Youll most likely find it along the shores of a river or stream.
http://www.dnr.state.wi.us/org/caer/ce/eek/critter/mammal/riverotter.htm

Extractions: In Wisconsins northern streams, rivers, marshes, lakes, and ponds you may see a sleek, dark brown critter with a long, tapered, muscular body gliding just below the waters surface. This is the largest member of the weasel family, known for its broad head and small facial features, except for a rather large nose pad. If you see an otter on land, dont confuse it with the mink. If you see one in the water, dont confuse it with a muskrat. Look for the webbed feet, 2-4 inch whiskers and a light tan cheek, chin, throat, and belly patch and thick muscular tail. Otters measure about 3-4 feet long with a 12-18 inch tail. Youll find otters mostly in the northern half of Wisconsin. They are less common in the southwestern and central two-thirds of the state. They are rarely found in Door County and the southern and southeastern half of the state. Otters munch from an aquatic menu. Their favorites are fish such as suckers, minnows, sunfish, bass, and minnows. Their second choice is crayfish, then frogs and miscellaneous animals. They like to forage near shorelines, overhanging banks, and areas where fish are found. They will also eat birds and vegetation. Otters need about 3 square miles to find all of this food. Otters will hang out at a few of their favorite spots in this large area, depending on where the eating is good. They mark their territory using scent from their feces, urine, and musk. Just like some people mark the edges of their property with signs and fenceposts, many animals mark their territory, only they do it by urinating and defecating in strategic spots. They also communicate by making sounds, like a bird chirping, a grunting sound when playing or grooming, and a high pitched scream when fighting or mating. When they get surprised or frightened, you may hear them snort.

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