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Sep 13, 2010 · Sea otters do not migrate far. Their rafts—usually comprised of a single sex—can range from as few as 10 individuals to as high as 1,000. 3. With populations once estimated at close to 300,000, sea otters were hunted extensively for their pelts.
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MIGRATION: Sea otters do not migrate long distances. Local migration may occur. BREEDING: Female otters reach sexual maturity at three years of age, and males follow at five to six years.
Sep 16, 2021 · Studies like that of Dr. Hughes suggests that sea otters could find suitable habitat not only in San Francisco Bay, but also in Drakes Bay, Tomales Bay, and Bodega Bay. He has estimated that the southern sea otter population in California could triple if they expanded into San Francisco Bay alone.
- Habitat
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Otters are usually found no more than a few hundred meters from water. Most species are entirely dependent on aquatic habitats for food. River otters (genus Lutra) inhabit all types of inland waterways, as well as estuaries and marine coves. In southern Chile the marine otter is found almost exclusively along exposed rocky seashores; farther north ...
A home range is the portion of land and water that an animal frequently visits during its daily and seasonal activities. All otter species occupy a home range. Home ranges vary in size with species, location, and resource distribution, and are generally larger for males Straight line lengths for Eurasian otter home ranges in Sweden average about 15...
Very little information is available on worldwide population figures for freshwater otters. Most otters have widespread distributions, but relatively sparse populations. Nearly all otter populations have been impacted to some extent by human activities. There may be fewer than 1,000 marine otters left throughout their range. The Alaskan sea otter p...
Sep 25, 2023 · Dive Into the Sea Otter Habitat. Geographical Range – There are two main subspecies of sea otters and they have a vast range that stretches from the coasts of Russia and Alaska down to California. They prefer coastal habitats within a kilometer of the shoreline.
Conservation and Reintroduction. Sea Otters on the West Coast. Before commercial hunting began in the 1700s, ~150,000 to 300,000 sea otters (Enhydra lutris) occurred in coastal waters from northern Japan to Baja California, Mexico.
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Oct 11, 2024 · The sea otter is the largest otter, reaching 100–160 cm (40–65 inches) long and weighing 16–40 kg (35–90 pounds) when fully grown. It inhabits coastal waters from the Kuril Islands to the Aleutian Islands southward to the coast of California.
