Ringed Seal


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Related to Ringed Seal: Ribbon Seal, bearded seal

Ringed Seal

 

(Pusa hispida), a pinniped of the family Phocidae. It measures up to 1.5 m long and weighs up to 70 kg. The pelt is dark gray with light rings.

The ringed seal is distributed in all the arctic seas and in the northern parts of the Pacific and Atlantic oceans, mainly near the coasts. In USSR waters it is found from the Barents Sea to the Sea of Japan and in the Baltic Sea and Lake Ladoga. The pup, measuring about 60 cm long, is born on the ice, usually in a snow burrow, at the end of winter or in the spring. It attains sexual maturity at five or six years of age.

The ringed seal feeds on fish and crustaceans. It is an object of commerce: its pelt, subcutaneous fat, and flesh (for feeding dogs and fur-bearing animals) are used. Closely related species —the Baikal seal and the Caspian seal—live in Lake Baikal and the Caspian Sea.

REFERENCE

Mlekopitaiushchie fauny SSSR, vol. 2. Moscow-Leningrad, 1963.

A. G. TOMILIN

References in periodicals archive ?
Results of multiple linear regression, weighted by survey effort, indicate no significant trend in ringed seal density as a function of year, survey date, or proportion of open water ([R.
The ringed seal is abundant throughout the circumpolar Arctic and feeds at several trophic levels (Dunbar, 1941; Lowry et al.
The project aims to reduce the main threats to the Saim ringed seal, which were identified in the Finnish national conservation strategy.
By 2100 only the northern fringes of Canada and Greenland--the same areas Pfirman's group identified in its polar bear study--will have snow deep enough to shelter ringed seal pups, suggests research presented at the AGU meeting by Brendan Kelly, an Alaska-based research biologist with NOAA's National Marine Mammal Laboratory, and Cecilia Bitz, a sea ice physicist at the University of Washington in Seattle.
The researchers found that Polar bears and ringed seals, both of which give birth in lairs or caves under the snow, lose many newborn pups when the lairs collapse in unusually early spring rains.
The breeding season for both ringed seals and polar bears is between late March and late May--the polar spring--and the bears rely on a steady supply of both adult and baby seals to build up fat supplies and provide the energy needed to supply their own offspring.
They are trained Labrador retrievers, who can pick up the scent of ringed seals from 4 kilometers away.
They note in the new study that Canadian Arctic ringed seals, like many Arctic marine animals, have relatively high levels of mercury.
The ringed seal, Phoca hispida, of the Canadian Western Arctic.
Ringed seal calls are primarily barks in winter and yelps in spring, while bearded seal moans increase during spring.
The study found that for one polar bear to sustain its energy level it would require an intake of 12,325 calories a day, usually one adult ringed seal every 10 days.
3 kg per person, depending on sex and region, and that for ringed seal (Pusa hispida) was 4.