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Bearded Seal
Bearded seals inhabit circumpolar Arctic and sub-Arctic waters that are relatively shallow (primarily less than about 1,600 feet deep) and seasonally ice-covered. In U.S. waters, they are found off the coast of Alaska. Learn more about the bearded seal.
Bearded Seal
Erignathus barbatus
Protected Status
ESA Threatened
Beringia DPS
ESA Threatened - Foreign
Okhotsk DPS
MMPA Protected
Throughout Its Range
MMPA Depleted
Beringia DPS
Okhotsk DPS
Quick Facts
Weight
575 to 800 pounds
Length
7 to 8 feet
Lifespan
About 25 years
Threats
Climate change,
Increased shipping activity,
Oil and gas exploration and development
Region
Alaska
Bearded seal in Kotzebue Sound, Alaska. Credit: John Jansen, NOAA Fisheries
Bearded seal in Kotzebue Sound, Alaska. Credit: John Jansen, NOAA Fisheries
About the Species
Bearded seal in Kotzebue Sound, Alaska. Credit: John Jansen, NOAA Fisheries
Bearded seal in Kotzebue Sound, Alaska. Credit: John Jansen, NOAA Fisheries
The bearded seal gets its name from the long white whiskers on its face. These whiskers are very sensitive and are used to find food on the ocean bottom.
Bearded seals inhabit circumpolar Arctic and sub-Arctic waters that are relatively shallow (primarily less than about 1,600 feet deep) and seasonally ice-covered. In U.S. waters, they are found off the coast of Alaska over the continental shelf in the Bering, Chukchi, and Beaufort Seas. Because bearded seals are closely associated with sea ice, particularly pack ice, their seasonal distribution and movements are linked to seasonal changes in ice conditions. To remain associated with their preferred ice habitat, bearded seals generally move north in late spring and summer as the ice melts and retreats and then south in the fall as sea ice forms. As such, they are sensitive to changes in the environment that affect the annual timing and extent of sea ice formation and breakup.
Bearded seals, like all marine mammals, are protected under the Marine Mammal Protection Act. There are two currently recognized subspecies of the bearded seal:
E. b. barbatus—often described as inhabiting the Atlantic sector
E. b. nauticus—inhabiting the Pacific sector
The geographic distributions of these subspecies are not separated by conspicuous gaps. The Okhotsk and Beringia distinct population segments (DPSs) of the Pacific sector are listed as threatened under the Endangered Species Act. Because of their listed status, these distinct population segments are also designated as depleted under the Marine Mammal Protection Act.
Population Status
There is no accurate population count at this time, but it is estimated that there are probably over 500,000 bearded seals worldwide.
The Beringia stock is the only stock of bearded seals in U.S. waters.
Although subsistence harvest of bearded seals occurs in some parts of the species’ range, there is little or no evidence that these harvests currently have or are likely to pose a significant threat. While the United States does not allow commercial harvest of marine mammals, such harvests are permitted in some other portions of the species’ range; however, there is currently no significant commercial harvest of bearded seals and significant harvests seem unlikely in the foreseeable future.
Appearance
Bearded seals are the largest species of Arctic seal. They grow to lengths of about 7 to 8 feet and range from about 575 to 800 pounds. In some regions, females appear to be slightly larger than males. Bearded seals have generally unpatterned gray to brown coats, large bodies, and small square fore flippers. They have a short snout with thick, long white whiskers, which gives this species its "beard."
Behavior and Diet
Bearded seals primarily feed on or near the sea bottom on a variety of invertebrates (e.g., shrimps, crabs, clams, and whelks) and some fish (e.g., cod and sculpin). While foraging, they typically dive to depths of less than 325 feet. They do not like deep water and prefer to forage in waters less than 650 feet deep where they can reach the ocean floor. Still, adult bearded seals have been known to dive to depths greater than 1,600 feet.
Bearded seals tend to prefer sea ice with natural openings, though they can make breathing holes in thin ice using their heads and/or claws. Sea ice provides the bearded seal and its young some protection from predators, such as polar bears, during whelping and nursing. Sea ice also provides bearded seals a haul-out platform for molting and resting. Bearded seals are solitary creatures and can be seen resting on ice floes with their heads facing downward into the water. This allows them to quickly escape into the sea if pursued by a predator. Bearded seals also have been seen sleeping vertically in open water with their heads on the water surface.
Bearded seals are extremely vocal, and males use elaborate songs to advertise breeding condition or establish aquatic territories. These vocalizations, which are individually distinct, predominantly consist of several variations of trills, moans, and groans. Some trills can be heard for up to 12 miles and can last as long as 3 minutes.
Where They Live
Bearded seals are circumpolar in their distribution, extending from the Arctic Ocean (85° north) south to Hokkaido (45° north) in the western Pacific. They generally inhabit areas of relatively shallow water (primarily less than 650 feet deep) that are at least seasonally ice-covered. Typically, these seals occupy ice habitat that is broken and drifting with natural areas of open water (e.g., leads, fractures, and polynyas), which they use for breathing and accessing water for foraging.
In U.S. waters off the coast of Alaska, bearded seals are found over the continental shelf in the Bering, Chukchi, and Beaufort Seas. The shallow shelf of the Bering and Chukchi Seas provides the largest continuous area of habitat for bearded seals. In late winter and early spring, bearded seals are widely but not uniformly distributed in the broken, drifting pack ice, where they tend to avoid the coasts and areas of fast ice. To remain associated with their preferred ice habitat, most adult seals in the Bering Sea are thought to move north through the Bering Strait in late spring and summer as the ice melts and retreats. They then spend the summer and early fall at the edge of the Chukchi and Beaufort Sea pack ice and at the fragmented edge of multi-year ice. Some bearded seals—mostly juveniles—remain near the coasts of the Bering and Chukchi Seas during summer and early fall, where they are often found in bays, estuaries, and river mouths. As the ice forms again in the fall and winter, most bearded seals are thought to move south with the advancing ice edge.
World map providing approximate representation of the bearded seal's range.
World map providing approximate representation of the Okhotsk DPS of bearded seal's range.
World map providing approximate representation of the Beringia DPS of bearded seal's range.
Lifespan & Reproduction
In general, bearded seal females reach sexual maturity at around 5 to 6 years and males at 6 to 7 years. Females give birth to a single pup while hauled out on annual pack ice, usually between mid-March and May. Pups are nursed on the ice, and by the time they are a few days old, they spend half their time in the water. Pups transition to diving and foraging while still under maternal care during a lactation period of about 24 days. Within a week of birth, pups are capable of diving to a depth of 200 feet.
Males exhibit breeding behaviors up to several weeks before females arrive at locations to give birth. Mating takes place soon after females wean their pups.
Threats
Climate Change Effects on Sea Ice
Bearded seals rely on the availability of suitable sea ice over relatively shallow waters for use as a haul-out platform for giving birth, nursing pups, molting, and resting. As such, ongoing and anticipated reductions in the extent and timing of ice cover stemming from climate change (warming) pose a significant threat to this species.
Additional Factors of Potential Concern
The continuing decline in summer sea ice in recent years has renewed interest in using the Arctic Ocean as a potential waterway for coastal, regional, and trans-Arctic marine operations, which pose varying levels of threat to bearded seals depending on the type and intensity of the shipping activity and its degree of spatial and temporal overlap with the seals. Offshore oil and gas exploration and development could also potentially impact bearded seals. The most significant risk posed by these activities is the accidental or illegal discharge of oil or other toxic substances because of their immediate and potentially long-term effects. Noise and physical disturbance of habitat associated with such activities could also directly affect bearded seals.
Scientific Classification
Kingdom
Animalia
Phylum
Chordata
Class
Mammalia
Order
Carnivora
Family
Phocidae
Genus
Erignathus
Species
barbatus
Last updated by NOAA Fisheries on 05/10/2024
What We Do
Conservation & Management
NOAA Fisheries is committed to the protection and management of bearded seals. In the United States, management actions taken to secure protections for these seals include:
Overseeing marine mammal health and stranding response
Educating the public about bearded seals and the threats they face
Working cooperatively under our co-management agreements with Alaska Native organizations, particularly the Ice Seal Committee, regarding issues related to subsistence use of ice seals, including bearded seals
Our research projects have discovered new aspects of bearded seal biology, behavior, and ecology, which helps us better understand the challenges that all bearded seals face. This research is especially important in rebuilding depleted populations. Our work includes:
Conducting distribution surveys
Using satellite telemetry to track movements, foraging, and haul-out behavior
Sampling tissues to evaluate population structure and health
In Alaska, report a sick, injured, entangled, stranded, or dead marine mammal to the Alaska Marine Mammal Stranding Hotline at (877) 925-7773 to make sure professional responders and scientists know about it and can take appropriate action. Numerous organizations around Alaska are trained to receive reports and respond when necessary.
On the west coast of the U.S., please contact the West Coast Region Stranding Hotline at (866) 767-6114.
Other reporting hotlines and resources:
To report entangled marine mammals:
Entanglement Reporting Hotline: 1-877-SOS-WHAL or 1-877-767-9425
Be responsible when viewing marine life in the wild. Observe all seals and sea lions from a safe distance of at least 50 yards and limit your time spent observing to 30 minutes or less.
Call the NOAA Fisheries Enforcement Hotline at (800) 853-1964 to report a federal marine resource violation. This hotline is available 24 hours a day, 7 days a week for anyone in the United States.
Marylou Staman conducts green sea turtle surveys at Lalo in the Papahānaumokuākea Marine National Monument. More than 90 percent of the Hawaiian green sea turtle population nests at Lalo (French Frigate Shoals). Credit: NOAA Fisheries. Taken under U.S. Fish and Wildlife Service Permit #TE-72088A-3 and Papahānaumokuākea Marine National Monument Co-Manager’s Permit.
At first glance, seals (true or “earless seals”) and sea lions look fairly similar. Taking a closer look, these are some of the general differences to tell these animals, such as on the harbor seal (left) and California sea lion (right) pictured above.
All bearded seals are protected under the Marine Mammal Protection Act. The Beringia and Okhotsk distinct population segments are listed as threatened under the Endangered Species Act and are designated as depleted under the MMPA.
Image
Bearded seal in the Bering sea. Credit: NOAA Fisheries
Co-Management Agreements
Alaska Natives have a long history of subsistence use of marine mammals for food and handicrafts.
In 1994, the MMPA was amended to add section 119, which reads, "The Secretary may enter into cooperative agreements with Alaska Native Organizations to conserve marine mammals and provide co-management of subsistence use by Alaska Natives." These co-management agreements may be established between NOAA Fisheries or the U.S. Fish and Wildlife Service and Alaska Native Organizations, including, but not limited to, Alaska Native tribes and tribally authorized co-management bodies. Co-management promotes full and equal participation by Alaska Natives in decisions affecting the subsistence use of marine mammals (to the maximum extent allowed by law) as a tool for conserving marine mammal populations in U.S. waters in and around Alaska.
NOAA Fisheries entered into a co-management agreement with the Ice Seal Committee (PDF, 7 pages) in October 2006. The Ice Seal Committee is an Alaska Native Organization that represents ice seal subsistence users in the five regions of Alaska that harvest ice seals: Bristol Bay (Bristol Bay Native Association), Yukon-Kuskokwim Delta (Association of Village Council Presidents), Bering Sea (Kawerak, Inc.), Northwest Arctic (Maniilaq Association), and the Arctic Slope (North Slope Borough). The Ice Seal Committee is dedicated to conserving ice seal populations, habitat, and hunting and to preserving native cultures and traditions. The Ice Seal Committee co-manages ice seals with NOAA Fisheries by monitoring subsistence harvest and cooperating on needed research and education programs pertaining to ice seals.
The Ice Seal Committee adopted an Ice Seal Management Plan (PDF, 8 pages) in January 2012 that outlines the members management principles and goals.
Overseeing Marine Mammal Health and Stranding Response
We work with volunteer networks in all coastal states to respond to marine mammal strandings including all pinnipeds. When stranded animals are found alive, NOAA Fisheries and our partners assess the animal’s health and determine the best course of action. When stranded animals are found dead, our scientists work to understand and investigate the cause of death. Although the cause often remains unknown, scientists can sometimes attribute strandings to disease, harmful algal blooms, vessel strikes, fishing gear entanglements, pollution exposure, and underwater noise. Some strandings can serve as indicators of ocean health, giving insight into larger environmental issues that may also have implications for human health and welfare.
There is an ongoing Bearded Seal Unusual Mortality Event (UME), and the species has experienced unusual mortality events in the past. Under the Marine Mammal Protection Act, an unusual mortality event is defined as "a stranding that is unexpected; involves a significant die-off of any marine mammal population; and demands immediate response." To understand the health of marine mammal populations, scientists study unusual mortality events.
We, NOAA Fisheries, issue this final rule to designate critical habitat for the Beringia distinct population segment (DPS) of the Pacific bearded seal subspecies Erignathus barbatus nauticus under the Endangered Species Act (ESA). The critical habitat…
NOAA Fisheries announces its intent to conduct a 5-year review of the threatened Beringia and Okhotsk distinct population segments (DPSs) of the Pacific bearded seal subspecies Erignathus barbatus nauticus. NOAA Fisheries is required by the Endangered…
The Department of Commerce, as part of its continuing effort to reduce paperwork and respondent burden, invites the general public and other Federal agencies to take this opportunity to comment on proposed and/or continuing information collections, as…
Final determination to list the Beringia and Okhotsk distinct populations segments (DPSs) of the Erignathus barbatus nauticus subspecies of the bearded seal (Erignathus barbatus) as threatened under the Endangered Species Act (ESA). NOAA Fisheries will…
NOAA Fisheries conducts various research activities on the biology, behavior, and ecology of the bearded seal. The results of this research are used to inform management decisions and enhance protection efforts for this species.
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Tagged Bearded seal in Kotzebue Alaska. Credit: NOAA Fisheries
Population/Stock Assessments
Our scientists collect information on bearded seals from various sources and present these data in an annual stock assessment report. Stock assessment reports contain scientific information on a species’ or stock’s geographic range, population structure, abundance, and threats, which helps resource managers assess the success of enacted management and conservation measures.
Ice Seal Surveys
Reliable distribution and abundance estimates for ice-associated seals are vital for developing sound plans for management, conservation, and responses to potential environmental impacts. NOAA Fisheries’ Marine Mammal Laboratory’s Polar Ecosystems Program designs and conducts surveys and develops data products from these surveys to address this fundamental information need. Additional information about the Polar Ecosystems Program’s research is available in recent reports and publications.
Genetic Analysis
Molecular genetic techniques are being applied to a number of taxonomic, evolutionary and demographic questions in bearded, ribbon, ringed, and spotted seals, including the relationships among the different species and the population structure and dispersal patterns within each species. For example, NOAA Fisheries recently initiated a collaborative research project with the Alaska Department of Fish and Game to determine whether mitochondrial DNA would be informative in resolving questions of population and stock structure in ringed, bearded and ribbon seals. Initial efforts are revealing high levels of genetic variation in all species.
Additional Research
We conduct several regular surveys and field projects on ice seals (bearded, ribbon, ringed, and spotted seals) in Alaskan Arctic waters. This research helps us understand the role of ice seals in the marine ecosystem and inform management decisions for the conservation of these species.
The Alaska Fisheries Science Center's ice seal (bearded, ringed, spotted and ribbon seals) data sets are available on the NOAA Fisheries Open Data Portal.
NOAA Fisheries Alaska Fisheries Science Center and National Oceanic & Atmospheric Administration conduct research on marine mammals off the coasts of Alaska, Washington, Oregon, and California.
NOAA Fisheries Alaska Fisheries Science Center and National Oceanic & Atmospheric Administration conduct research on marine mammals off the coasts of Alaska, Washington, Oregon, and California.
Four species of ice-associated seals inhabit the Bering, Chukchi, and Beaufort seas of the Alaskan Arctic. These species are bearded seals (Erignathus barbatus), ringed seals (Phoca hispida), spotted seals (Phoca largha), and ribbon seals (Histriophoca…
