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Hawaiian Marine Life - Hawaiian Monk Seal

 

 

 

 

 

 

 

 

 

 

Hawaiian Monk Seals

Most pups are born between February and July, with a peak in April-May.

Birth weight is 11 to 15 kg; normal weaning weight is 50 to 80 kg (3 ft long and 23 pounds)

Nursing time is 5-6 weeks, during which mothers do not eat.

Nursing pups are sometimes exchanged between females.

Females give birth on beaches with adjoining shallow waters, which provide protection from sharks.

Females give birth for the first time at five to nine years of age.

Monk seals can spend up to a month at sea.

The Hawaiian monk seal, a relative of warm-water seals found in the Caribbean and the Mediterranean, was nearly slaughtered into extinction for its skin and oil during the 19th century.

Monk Seals Blinded by Science?

Recovery Plan for the Hawaiian Monk Seal (2007 revision)

The Captive Care and Release Research Project Seeks to Aid Recovery of the Endangered Hawaiian Monk Seal

 

MONK SEAL CRITTER CAM (video)

 

Hawaii Marine life

HAWAIIAN MONK SEALS

  • Common name: Hawaiian monk seal

  • Hawaiian name: ‘ilio-holo-i-ka-ua-ua (dog that runs in the rough sea)

  • Scientific name: Monachus schauinslandi

  • Distribution: Hawaiian Islands

  • Size: 400-600 pounds (180-270 kg), 7-8 feet (2.1-2.4 m) long

  • Diet: bottom-dwelling and reef fish, eel, octopus, squid and crustaceans

  • Average life span: 25-30 years

This rare seal is endemic to the Hawaiian Islands and is found nowhere else in the world. Its primary natural habitat lies in the Northwestern Hawaiian Islands, the most remote part of the Hawaiian chain.

The Hawaiian monk seal is in crisis: the population is in a decline that
has lasted 20 years and only around 1200 monk seals remain. Modeling predicts the species’ population will fall below 1000 animals in the next five years. Like the extinct Caribbean monk seal and the critically endangered Mediterranean monk seal, the Hawaiian monk seal is headed to extinction if urgent action is not taken.

Occasionally, monk seals are sighted around the major high islands of the Hawaiian chain. Recently, some females have even come ashore to give birth and nurse their pups; these individuals are considered to be "stragglers" from the main population to the northwest.

monk seal foragingHawaiian monk seals naturally spend about a third of their time resting and sleeping on shore. They are not "lazy," but conserve energy between their hunting and foraging trips. They are known to feed on reef fish, octopus, and lobster, as well as other types of prey.

When they are hunting on the reef, they may stay underwater for more than 15 to 20 minutes, depending on how deep they dive and how active they are underwater. Monk seals have been known to dive to about 1,650 feet (500 m), but most of their diving is probably much shallower.

Large tiger sharks are their main natural predator, and the presence of sharks may be another possible reason for the seals to minimize their time in the water (and maximize their time on the beach).

Monk seals are not social seals and do not form harems or other large groups seen in some seal and sea lion species. Females give birth for the first time at five to nine years of age. Seal pups are usually born in the spring. They nurse for 5 to 6 weeks and can quadruple their birth weight of 35 pounds (16 kg). After weaning, pups live off their fat while they learn to forage for themselves. Some research and recovery projects aim to assure pup and juvenile survival in the wild.

  • Report monk seal sightings, but don't approach or disturb them

  • Learn about monk seals and their need for protected habitat.

  • Help control marine debris; dispose of rubbish carefully; reduce, reuse, recycle!

  • Monk seal rules
    » Stay 150 feet away from a monk seal, whether in the water or on land.
    » Keep dogs away from monk seals. They can infect seals with diseases for which they have no immunity.
    » To report violations or seal injuries, entanglements and sightings, call the National Marine Fisheries Service at 1-888-256-9840.

Hawaiian Monk Seal

USFWS Monk Seal Sight for Threatened and Endangered Animals

Monk Seal Webcam at Waikiki Aquarium

Starvation, sharks cut monk seal population

Send a Monk Seal Postcard

Color a Monk Seal

 

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