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AnAge entry for Arctocephalus gazella

Classification (HAGRID: 02560)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Otariidae
                    Genus: Arctocephalus
SpeciesArctocephalus gazella
Common nameAntarctic fur seal

Lifespan, ageing, and relevant traits

Maximum longevityNot yet established
Observations

The total gestation time probably includes a period of delayed implantation [0443]. In the wild, these animals have been estimated to live up to 23 years [0573]. Their longevity in captivity has not been studied in detail and hence their maximum longevity must be classified as unknown.

Life history traits (averages)

Female sexual maturity1,278 days
Male sexual maturity1,278 days
Gestation257 days
Weaning122 days
Litter size1 (viviparous)
Litters per year1
Inter-litter interval365 days
Weight at birth6,000 g
Weight at weaning15,800 g
Adult weight84,500 g
Postnatal growth rate0.0014 days-1 (from Gompertz function)

Metabolism

No information on metabolism available.

References
[0443] Ronald Nowak (2003), Walker's Marine Mammals of the World
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0573] David Macdonald (1985), The Encyclopedia of Mammals
[0731] Zullinger et al. (1984), Fitting sigmoid equations to mammalian growth curves

External resources

Integrated Taxonomic Information SystemITIS 180630
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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