Ringed Seal

Ringed Seal

Jar seal, Fjord seal, Netsik, Nattiq

Kingdom
Phylum
Subphylum
Class
Order
Suborder
Clade
Family
Genus
SPECIES
Pusa hispida
Population size
1,500,000
Life Span
25-30 years
Top speed
30
19
km/hmph
km/h mph 
Weight
65-95
143-209
kglbs
kg lbs 
Length
1.4-1.6
4.6-5.2
mft
m ft 

The Ringed seal (Pusa hispida) is a small earless seal that lives in the Arctic and sub-Arctic regions. It is the most abundant and wide-ranging ice seal in the Northern Hemisphere. Ringed seals are one of the primary prey of Polar bears and Killer whales, and have long been a component of the diet of indigenous people of the Arctic.

Di

Diurnal

Ca

Carnivore

Pi

Piscivores

Pl

Planktivore

Pr

Precocial

Na

Natatorial

Vi

Viviparous

Aq

Aquatic

Pr

Predator

Po

Polygyny

So

Solitary

No

Not a migrant

R

starts with

Appearance

Ringed seals are the smallest of the pinnipeds. The color of their coat is variable, but it is usually dark gray on the upperparts, while being light gray to silver underneath. Dark gray spots are ringed by silver or light grayish-white circles, which are clearer on the sides and back and often so close together that they fuse. A Ringed seal is plump with a small, round head and a thick, short neck. Its broad, blunt snout and large, forward-facing, close-set eyes give it an appearance that is almost cat-like. The front flippers are relatively small, with slightly pointed claws of more than one inch in thickness, used for maintaining breathing holes in thick ice. Their whiskers are beaded and light-colored. Males are usually slightly larger than females.

Video

Distribution

Geography

Ringed seals inhabit the Arctic Ocean, the Bering Sea, and the Okhotsk Sea as far to the south as Japan's northern coast in the Pacific, and the North Atlantic coastal parts of Scandinavia and Greenland and as far to the south as Newfoundland, including two freshwater subspecies which live in northern Europe. Ringed seals do not come to shore through much of their range. Instead, they live in Arctic waters and are typically found where there is pack ice and ice floes. Further south and in Lake Ladoga and Lake Saimaa these seals rest on rocks, offshore reefs, and island shores when ice is absent.

Ringed Seal habitat map

Climate zones

Ringed Seal habitat map
Ringed Seal
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Habits and Lifestyle

Ringed seals are diurnal, meaning they are active during the day. Adults are solitary except during the breeding season when they may establish their lairs closer to each other. In mid-May, they begin to haul out up onto the ice to bask in the sun. They molt during this time and feed less. Ringed seals hunt on their own, and on the ice when resting they will keep away from others. They usually stay near holes or cracks so that they can get quickly into the water if they need to. They also make lairs from snow to protect themselves. While feeding, Ringed seals dive to depths of 35 to 150 ft (11 to 46 m). In the summer they often feed along edge of the sea-ice for polar cod.

Seasonal behavior

Diet and Nutrition

Ringed seals are carnivores (piscivores, planktivores). Their diet includes various fish, crustaceans, cephalopods, euphausiids, amphipods, mysids, and shrimps.

Mating Habits

MATING BEHAVIOR
REPRODUCTION SEASON
April-May
PREGNANCY DURATION
9 months
BABY CARRYING
1 pup
INDEPENDENT AGE
5-7 weeks
FEMALE NAME
cow
MALE NAME
bull
BABY NAME
pup

Ringed seals are polygynous, with one male mating with multiple females. They breed from April to May. The females build lairs amongst the thick ice where they give birth. In March or April, after a gestation of 9 months, they bear a single pup. They nurse their pups for 5 to 7 weeks, and, during this time, may move their pups between lairs, usually having 4 to 6 lairs. This allows pups to move independently from shelter to shelter when they are older if they are attacked. Females usually bear pups between the ages of 6 and 8. Males typically do not breed until they are 8 to 10 years old.

Population

Population threats

Climate change is the greatest threat to Ringed seals. Being dependent upon an ice habitat, both ice and snow need to be stable enough in the spring to allow females to raise the pups in their lairs. But as Arctic ice continues to melt every year and the ice breaks up sooner, mothers may increasingly become separated from their pups prematurely, which increases the risk of predation and exposure. Furthermore, warm spring temperatures and spring rains can also cause the collapse of the roofs of lairs, with similar results. Other threats to these seals are pollution, disturbance, and getting tangled in fishing nets.

Population number

According to the IUCN Red List, the worldwide population size of the Ringed seal is 3 million individuals or more than 1.5 million mature individuals, including five recognized subspecies: Arctic Ringed Seal - 1,450,000 individuals, Okhotsk Ringed Seal - 44,000 individuals, Baltic Ringed Seal - 11,500 individuals, Ladoga Seal - 3,000-4,500 individuals, Saimaa Seal - 135-190 individuals. Currently, this species is classified as Least Concern (LC) on the IUCN Red List.

Fun Facts for Kids

  • The Ringed seal is named for the small light-colored rings or circles scattered on its back throughout the darker hair.
  • The Ringed seal pup has woolly, thick, whitish fur when it is born, known as ‘lanugo’. As it grows, its fur becomes finer and a little longer than that of adults, dark gray on the upperparts, and silver on the underside. The pups are known at this stage as ‘silver jars’.
  • The Ringed seal is often seen blowing bubbles while it approaches the water's surface. This way it can check to see if a polar bear is there, which may respond to their presence. It is likely to go up for air if it doesn't get a message that there is such a threat.
  • Ringed seals live in places completely covered in ice, and so they make use of their sharp claws to form and maintain breathing holes in the ice, which may be as thick as 7 feet.
  • Males' faces are darker than those of females in the spring as the result of an oil gland secretion.

Coloring Pages

References

1. Ringed Seal Wikipedia article - https://en.wikipedia.org/wiki/Ringed_seal
2. Ringed Seal on The IUCN Red List site - http://www.iucnredlist.org/details/41672/0

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