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The North American river otter (Lontra canadensis), also known as the northern river otter and river otter, is a semiaquatic mammal that lives only on the North American continent throughout most of Canada, along the coasts of the United States and its inland waterways. An adult North American river otter can weigh between 5.0 and 14 kg (11.0 ...
For most otters, fish is the staple of their diet. This is often supplemented by frogs, crayfish and crabs. [12] Some otters are experts at opening shellfish, and others will feed on available small mammals or birds. Prey-dependence leaves otters very vulnerable to prey depletion. Sea otters are hunters of clams, sea urchins and other shelled ...
If you live near a lake, pond or river that has no otters, there is a chance that the water is polluted. “River otters play an important role in Florida’s freshwater ecosystems as a predator ...
Otters have been hunted for their pelts since at least the 1700s. There has been a long history of otter pelts being worn around the world. In China it was standard for the royalty to wear robes made from them. People that were financially high in status also wore them. [83] Otters have also been hunted using dogs, specifically the otterhound. [84]
Mink and river otters live along rivers, streams, lakes, marshes, water impoundments and other areas. Both species are capable of long distance travel, foraging, and dispersal; but river otters ...
The decline in population of native freshwater fishes in the rivers of Iberia, which is the preferred food of Eurasian otters, along with the expansion of exotic fish species like centrarchids could potentially put Eurasian otters at risk for extinction.
River Otters are a native North American species who live throughout Canada, in the Pacific Northwest, all along eastern seaboard and Atlantic Coast, and throughout Mississippi and Gulf Coast ...
The continual decrease in prey numbers also causes problems for the southern river otter. [4] Some invasive aquatic species that have been introduced into that area are limiting the mollusks and fish available for otter prey. This causes the otters to move to other freshwater systems to hunt for food.