Southern Elephant Seal | Oceana
Home / Southern Elephant Seal

Marine Life Encyclopedia

Marine Mammals

Southern Elephant Seal

Mirounga leonina

Distribution

Restricted to subpolar and polar waters of the southern hemisphere

ECOSYSTEM/HABITAT

Nest on beaches; feed in the deep sea

FEEDING HABITS

Active predator

TAXONOMY

Order Pinnipedia (seals, sea lions, and relatives), Family Phocidae (true seals)

The southern elephant seal is one of two living species of elephant seals. These two species get their name from the trunk-like nose that males develop as they become sexually mature. Only the strongest, most dominant males win the right to mate with females, and ninety percent of males die before developing a harem. Harems defended by the most powerful males may reach sizes of 120-150 females. Fights between dominant males and challengers can be long, bloody, and extremely violent, with the loser often suffering serious injury. Both pupping and mating take place simultaneously on ice-free beaches. Since females continue to nurse their pups throughout the mating season, pups are often in danger of being trampled by brawling males. Even though the pups are often the offspring of one of the fighting males, apparently the risk of losing part or all of a harem is enough to potentially kill some pups while defending it.

Southern elephant seals are open ocean predators and spend much of their time at sea. They only come to shore to reproduce and to molt their fur. The rest of the year is spent feeding at sea, where they rest by floating at the surface and feed by diving to significant depths in search of large fishes and squids. Their time at sea often brings them far from their breeding areas, and they may cover very long distances between times spent on land. Large southern elephant seals have few predators, but killer whales, leopard seals, and some large sharks are known to feed on this species.

Historically, southern elephant seals were hunted to very low numbers because of the value and volume of their blubber, which was rendered into oil. Commercial hunting ceased in 1964 because numbers were too low to be worth the long trip to the Southern Ocean. Since that time, populations have rebounded nicely, and the southern elephant seal is considered a species of least concern. However, potential impacts of expanding Southern Ocean fisheries and ongoing climate change on the populations of this seal are not well known, so it is important to continue to study and monitor this and other Antarctic seals.

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

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: