Steller Sea Lion - Oceana

Marine Life Encyclopedia

Marine Mammals

Steller Sea Lion

Eumetopias jubatus

Distribution

Temperate to sub-polar latitudes of the north Pacific Ocean

eCOSYSTEM/HABITAT

Pop on beaches and rocky shores; feed on rocky reefs and soft bottoms

FEEDING HABITS

Active predator

TAXONOMY

Order Pinnipedia (seals, sea lions, and relatives), Family Otariidae (fur seals)

     

    Steller sea lions are generalist predators that eat a variety of large, marine fishes (Pacific Cod, Pollack, salmons, flatfishes, etc.), along with squids and octopuses. They are known to pester fishers by eating fishes out of their nets, bringing them into dangerous contact with humans. As they are some of the largest animals throughout their range, steller sea lions have few natural predators. However, both killer whales and great white sharks are known to occasionally eat them.

    Males of this species form harems of females with which they mate. Only the strongest, most dominant males win the right to mate with females, and many males never successfully mate. Typically, they cannot successfully defend females from other males until they are at least nine years old. Both pupping and mating take place during the same season and in the same locations. Since females continue to nurse their pups throughout the mating season, pups can be in danger around fighting males. As they must protect their harems from intruders, males do not leave their preferred mating sites for the entire breeding season. The season may last up to four months, so males may lose significant weight during that time.

    Unlike fur seals and some other sea lions, steller sea lions were never prized for their pelts. Throughout history, they have been hunted from time to time for their meat or for other products, but the commercial hunting of this species never approached that for other seals and sea lions. A more significant threat to steller sea lions has been culling by fishermen, who believe that they eat too many fish. In the middle of the 20th century, this practice reduced numbers of steller sea lions significantly. Fortunately, this species has been fully protected throughout much of its range for several decades, and populations are now increasing. Even with this positive trend, scientists consider steller sea lions to be near threatened with extinction.

    Engage Youth with Sailors for the Sea

    Oceana joined forces with Sailors for the Sea, an ocean conservation organization dedicated to educating and engaging the world’s boating community. Sailors for the Sea developed the KELP (Kids Environmental Lesson Plans) program to create the next generation of ocean stewards. Click here or below to download hands-on marine science activities for kids.

    Kids Environmental Lesson Plans

    Additional Resources:

    IUCN Red List

    NOAA Fisheries

     

    Get Involved

    Donate Today

    SUPPORT OUR WORK TO PROTECT THE OCEANS BY GIVING TODAY

    With the support of more than 1 million activists like you, we have already protected nearly 4 million square miles of ocean.

    Donate Now

    TAKE ACTION NOW

    Support policy change for the oceans

    Decision-makers need to hear from ocean lovers like you. Make your voice heard!

    Sign Now

    VISIT OUR ADOPTION CENTER

    SYMBOLICALLY ADOPT AN ANIMAL TODAY

    Visit our online store to see all the ocean animals you can symbolically adopt, either for yourself or as a gift for someone else.

    Shop Today

    DOWNLOAD OCEAN ACTIVITIES

    HELP KIDS DISCOVER OUR BLUE PLANET

    Our free KELP (Kids Environmental Lesson Plans) empower children to learn about and protect our oceans!

    Learn More

    FEATURED CAMPAIGN

    Save the Oceans, Feed the World

    We are restoring the world’s wild fish populations to serve as a sustainable source of protein for people.

    Learn More

    More CAMPAIGNs

    Protect Habitat

    Bycatch

    Plastics

    View All

    CONTACT

    Oceana International Headquarters
    1025 Connecticut Avenue, Suite 200
    Washington, DC 20036 USA

    General Inquiries
    +1(202)-833-3900
    info@oceana.org

    Donation Inquiries
    +1(202)-996-7174
    wavemaker@oceana.org

    Press Inquiries
    +1(202)-833-3900
    press@oceana.org

    OCEANA'S EFFICIENCY

    BECOME A WAVEMAKER

    Sign up today to get weekly updates and action alerts from Oceana.

    SHOW YOUR SUPPORT WITH A DONATION

    We have already protected nearly 4 million square miles of ocean and innumerable sea life - but there is still more to be done.

    Donate Now

    QUICK LINKS: