Quick Facts

Native to North Atlantic and Northern Pacific Oceans

Primary Diet Fish, such as rockfish, herring, cod, mackerel, flounder and salmon.

Adult Weight Males 120 to 300 pounds; Females 100-190 pounds

Lifespan 20 to 30 years

Status Stable

Harbor Seal

Harbor seals can dive to depths of 500 feet (152.4 meters) but depths of up to 1,460 feet (446 meters) have been recorded. They can remain submerged for up to 30 minutes at a time. During the winter, the blubber layer can account for up to 30 percent of a harbor seal’s body mass.