Sea Otter Frequently Asked Questions
© Scott Roland Where do a otters give birth?
On land or in water, and for the northern a otter in Alaska, occasionally on ice floes.
How do a otters give birth?
Like all mammals, they give birth to live young. Otter babies are called pups.
When do a otters give birth and how many pups are born?
Sea otters generally give birth to one pup a year. If they give birth to two, they will abandon one of them, as they can't care for two at a time. This is how pups are orphaned. Orphans rescued by trained wildlife rehabilitators can survive to adulthood and, in fact, all three otters at the Monterey Bay Aquarium were orphans. Otters are full-grown at about 3 years of age and generally they are weaned between 6 months and 1 year of age.华南农业大学分数线
How big are pups when they are born?
3-5 lbs.
How do they grow?
60Si2MnAThrough drinking the very fat, rich milk that the mother provides for the first two months of the pups’ life. Solid food is gradually worked into the pups’ diet as they mature.
How do a otters communicate?
Through body contact, nosing one another, head-jerking and vocalizations. Sea otters, in comparison to a lions, for example, are not extremely vocal animals. However, adults u a soft, low cooing sound, and grunts to exhibit "contentedness," among other things. Pups u a high-pitch
squeal to communicate with their mom. Some other sounds in the vocal repertoire of a otters include whistles, whimpers, squeaks, whines, growls, snarls and hiss.
How are a otters listed under the Endangered Species Act?
The southern a otter is listed as "threatened." If the population decline continues, this listing could be changed to "endangered." The northern a otter, which consists of sub-populations in Alaska, Canada and Washington, isn’t listed as a whole subspecies. The different sub-populations have different status classifications. Currently there is no federal or state Endangered Species Act listing for Alaska and
Washington. The southwest stock of northern a otters in Alaska, were listed as “threatened” under the ESA in 2005.Washington has listed the a otter as state endangered. In addition, in Canada, the otter population in British Columbia is classified as “threatened” by the Committee on the Status of
Endangered Wildlife in Canada (COSEWIC).
What other protections are afforded to a otters?
All a otters in the United States are classified as "depleted" under the federal Marine Mammal Protection Act. The California a otter is also listed under state law as a "fully protected mammal."
What do a otters eat?解除
Abalone, squid, snails and other molluscs; clams; musls; crabs; lobster; urchins; a stars; a cucumbers; chitons; marine worms; and about 40 other marine invertebrates; and on occasion, marine birds; and in Alaska, certain fish.
How do a otters forage for food?
Sea otters generally do not spend more than two or three minutes diving for food. They u their nsitive paws, whiskers and vision to make their way through the water to find food. Sea otters then return to the surface with their prey, lie on their backs, place the food on their chests and break open the prey using a tool of some kind (rock, bottle, etc.).
Where are a otters on the food chain?
Sea otters are considered to be "opportunistic feeders" – that is, they feed on many prey items. They are carnivores, and, at times, omnivorous, meaning they feed on both animal and plant food. They ar
e the top-end predator in the nearshore marine ecosystem.
What are the natural predators of a otters?荆州美食
Great white sharks are the primary predator in California. Ongoing studies in Alaska recently revealed that orcas (killer whales) are eating more and more a otters in that region, possibly becau the usual prey (als and a lions) are in decline. Other factors that may be influencing the orcas to eat more a otters may include natural disturbances to the ecosystem that occur over space and time, as well as overfishing. Other reported predators that feed on a otters include stellar a lions, coyotes, bears and eagles.
How do a otters protect themlves?
Sea otters have three basic ways to escape predators: fleeing; taking refuge in the kelp where they live; and coming up on land. They also have strong teeth they can u in interactions with other a otters.
What is the lifespan of a a otter?
Sea otter males generally live up to 10-15 years, while females live 15-20 years.
What is the habitat of a a otter?
Sea otters live in the nearshore marine ecosystem, which consists of rocky shores and kelp forests. In California, many a otters spend a considerable amount of time in an estuary called Elkhorn Slough that is located near Moss Landing. A large part of their day is spent in the kelp forest and rocky areas, where much of their prey is found. And, the kelp canopy provides shelter and protection for a otters from
storms and predators.
Do a otters have personalities, specifically with their interactions with humans?
Sea otters are wild animals, which means their behavior towards humans can be unpredictable. Like people and other animals, they all have individual personalities. Some may be aggressive towards humans and other otters may be friendly. There have been occasional reports of a otters messing around with divers (e.g., pulling at their dive caps and other things).
How do a otters u their forepaws and forelegs?
Sea otter forepaws are quite dexterous and nsitive, allowing a otters to extract their prey from ti
ght spots and to n the prey they do handle. The pads of their paws are different from tho of dogs -- a otters have a continuous pad that covers the whole bottom part of the paw, while a dog’s paw is not fud. What is the size and weight of a otters?
水质监测站California a otters average 4 feet in length and 50-60 pounds in weight. Northern a otters are slightly larger.
What information do we know about the a otter fur trade?
Aboriginal people hunted a otters for many thousands of years. Coastal North American Indians, northern Aleuts and the Japane valued otters for their warm fur. In some areas, the Aleuts over-exploited otters and substantially reduced their populations. However, it wasn't until the mid-1700s that widespread commercial hunting of a otters took place, leading to the near-extinction of the species. The extremely profitable a otter fur trade began in 1741, when a shipwrecked Russian expedition led by Vitus Bering discovered a otters on one of the Commander Islands. ("Sea Otters" by Marianne Riedmann, 1997, published by the Monterey Bay Aquarium). You can obtain more information about the fur trade from this book.
What is the range of the California Sea Otter?
The California a otter is found from Half Moon Bay in the north to, as of 2009, just beyond Point Conception (in Santa Barbara county) in the south.
What is the classification for a otters?
Kingdom-Animalia
香辣爆炒八爪鱼的做法
Phylum-Chordata
Subphylum-Vertebrata己字开头的成语
Class-Mammalia
Order-Carnivora
电子设备英文Family-Mustelidae
Genus-Enhydra
Specific Epithet-lutris
Species-Enhydra lutris
