AnAge entry for Mirounga angustirostris

Classification (HAGRID: 02678)

Taxonomy
Kingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Phocidae
                    Genus: Mirounga
Species
Mirounga angustirostris
Common name
Northern elephant seal

Lifespan, ageing, and relevant traits

Maximum longevity
Not yet established
Observations

The total gestation time is about 11 months and includes a 2-3 months period of delayed implantation [0443]. Not much is known about the longevity of this species. In the wild, it is estimated that females live up to 18-20 years [0538]. One wild born specimen was about 15.8 years of age when it died in captivity [0671].

Life history traits (averages)

Female sexual maturity
1,095 days
Male sexual maturity
1,826 days
Gestation
252 days
Weaning
26 days
Litter size
1 (viviparous)
Litters per year
1
Inter-litter interval
365 days
Weight at birth
37,500 g
Weight at weaning
140,315 g
Adult weight
1,600,000 g
Postnatal growth rate

Metabolism

No information on metabolism is available.

References

External Resources

Integrated Taxonomic Information System
ITIS 180672
Animal Diversity Web
ADW account
Encyclopaedia of Life
Search EOL
NCBI Taxonomy
Taxonomy ID 9716
Entrez
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Ageing Literature
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