[2] John Edward Gray established the genus Mirounga in 1827. The northern elephant seal (Mirounga angustirostris) possesses a unique recent population history among mammals. [14], Southern elephant seal size also varies regionally. Females also dive deeply and repeatedly, but they go deeper during the daytime than at night. The deepest recorded dive doubled that average, reaching a little over 2,100 meters (6,890 feet) deep. The elephant seal (genus Mirounga) is the world's largest seal.There are two species of elephant seals, named according to the hemisphere in which they are found. Females reach 9 feet and 1,600 pounds. The body of the Pacific harbor seal is plump but tapers to small rear flippers permanently extended posteriorly. Each year a northern elephant seal will swim about 21,000 km (13,000 miles). 94956. While hunting in the dark depths, elephant seals seem to locate their prey, at least in part, using vision; the bioluminescence of some prey animals can facilitate their capture. [29] Individuals will return annually to the same hunting areas. In spring and summer seals also haul out at these areas for molting, as well as at some sites in Washington and British Columbia. The male southern elephant seal can be an incredible 10 times the weight of the female! Their semi-annual sojourns to the shores of Point Reyes provide a unique opportunity to glimpse the lives and behaviors of these elusive ocean giants. Adult males weigh between 2,200-4,000 kg are average length of 4.2 m with a maximum of 6.2 m. Title Northern Elephant Seal Range - CWHR M173 [ds1952] Publication date 2016-02-0100:00:00 Presentation formats digital map FGDC geospatial presentation format vector digital data Other citation details These are the same layers as appear in the CWHR System software. Northern elephant seals are found along North America’s Pacific coast, with a range that stretches as far north as Alaska and as far south as Mexico. Suggested explanations include a phenomenon of depression following a rapid demographic rebound that depletes vital resources, a change in climate, competition with other species whose numbers also varied, or even an adverse influence of scientific monitoring techniques. Elephant seals presumably feed in deep water and eat squid, and fish, including small sharks and rays. Offshore distances are approximate for some species as sampling and distribution information in deeper waters are often based on more limited and fragmentary evidence and studies.This dataset depicts the potential range of the species within the US Exclusive Economic Zone. Range Northern elephant seals are found in the coastal waters of the Pacific Ocean from the Gulf of Alaska down to Baja California. As for the duration, depth and sequence of dives, the southern elephant seal is the best performing seal. )[3]Macrorhinus elephantinus[4], The southern elephant seal (Mirounga leonina) is one of two species of elephant seals. Please note that if you are calling between 4:30 pm and 10 am, park staff may not be available to answer your call. To stay underwater so long, southern elephant seals … The name elephant seal comes from the size of the male nose, which resembles an elephant… While sailing along the Pacific coast in the 1800s, a whale and seal hunter named Charles Scammon reported seeing northern elephant seals from Baja California in Mexico to Point Reyes in California. Why do they dive so deep? Elephant seals and their curious human visitors may physically crush plants that are struggling to remain alive. Today, thanks to government protection and the seals' distant lives at sea, the worldwide population has grown to an estimated 210,000 seals. [34] Cases where weaned pups have been attacked and killed by leopard seals (Hydrurga leptonyx) and New Zealand sea lions (Phocarctos hookeri), exclusively small pups in the latter case, have been recorded. The third subpopulation of about 75,000 seals is found in the subantarctic islands of the Pacific Ocean south of Tasmania and New Zealand, mainly Macquarie Island. Southern elephant seals (Mirounga leonina) inhabit large portions of the southern hemisphere. They are found most often in the savannas, grasslands, and forests of Africa and Asia. The southern elephant seal is the most ‘sexually dimorphic’ of all mammals. Imagine being able to live in such extremes! In 2007, Minazo became the subject of an image macro similar to lolcat called "lolrus". Today, the main threat to elephant seals in New Zealand is … Elephant seals undergo a catastrophic molt (on land) where large pieces of their fur and skin slough off. Males grow to 14-16 feet long and weigh in at 3000-5000 pounds, or more. After their near extinction due to hunting in the 19th century, the total population was estimated at between 664,000 and 740,000 animals in 2005,[17] but as of 2002, two of the three major populations were declining. One of the most famous southern elephant seals was Minazo, who lived in Japan's Enoshima Aquarium from when he was a half-year old until his death in 2005 at age 11. In many regards, they exceed even most cetaceans. See and hear key differences between these marine mammals, and characteristics that make each unique. The first moulting accompanies weaning. Elephant Seals :: MarineBio Video Library Southern elephant seals, Mirounga leonina (Linnaeus, 1758), are named for their elephant trunk-like noses. Each year the northern elephant seal migrates farther than any other mammal in the world, traveling as many as 13,000 miles (about 21,000 km). 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