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sea otter prey

High metabolism means they control numbers of their prey species. The two are directly related in that sea otters prey on sea urchins, which in turn can help foster kelp beds because urchins feast on kelp. Such a high proportion of one prey species in the diet of otters is absolutely exceptional,” says Lukáš Poledník on the results of the most recent survey. Sea otters live in a cold ocean environment and rely on two traits to keep warm: a dense fur coat for insulation and very high metabolism to generate body heat. Adult males weight between 22 and 45 kilograms and measure from 1.2 to 1.5 meters.On the other hand the adult females usually weigh between 14 and 33 kilograms, and their length varies from 1 to 1.4 meters.. Kelp forests are desirable as productive nurseries for a wide range of sea life. The sea otters have a flexible skeleton and their face is small and round. Researchers working in Alaska’s Katmai Coast have discovered a surprising new interaction between mammals on small islands off the coast: grizzly bears are preying on sea otters. The two are directly related in that sea otters prey on sea urchins, which in turn can help foster kelp beds because urchins feast on kelp. Sea otters … While sea otters are vulnerable to natural predators such as sharks, the population also faces risks from other factors such as disease, contaminants, availability of prey, and entanglement in commercial fishing gear. Diet analysis suggests that butter clams are their preferred prey in Southeast Alaska (La Roche 2020). Hunted nearly to extinction by the fur trade, sea otters are endangered and currently exist in only a portion of their historic range. Their measurements vary depending on the sex. What wasn’t apparent from the surface as we cruised through the corridor of sea otter carnage in Shakan Bay was what effect the foraging activity had on the soft seafloor below, which was what I was to later investigate in eelgrass habitat. In the Monterey Bay, the sea otter lives in kelp forest and estuary habitats. Habitat. The Basics. Main Characteristics Of The Sea Otters Anatomy. North American river otters, like most predators, prey upon the most readily accessible species. The two are directly related in that sea otters prey on sea urchins, which in turn can help foster kelp beds because urchins feast on kelp. The sea otter is a well-known marine mammal with a historical range along the west coast of North America. Fish is a favored food among the otters, but they also consume various amphibians (such as salamanders and frogs [3] ), freshwater clams , mussels , snails , small turtles and crayfish . 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