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AnAge entry for Arctocephalus galapagoensis

Classification (HAGRID: 02559)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Carnivora
                Family: Otariidae
                    Genus: Arctocephalus
SpeciesArctocephalus galapagoensis
Common nameSouthern fur seal

Lifespan, ageing, and relevant traits

Maximum longevityNot yet established
Observations

There is a delayed implantation after fertilization [0443]. The actual embryonic development takes about 7 months, but the pregnancy usually lasts 1 year. In the wild, these animals have been estimated to live up to 22 years [0001]. Their longevity in captivity has not been studied in detail and hence their maximum longevity could be underestimated.

Life history traits (averages)

Female sexual maturity1,461 days
Male sexual maturity
Gestation213 days
Weaning776 days
Litter size1 (viviparous)
Litters per year1
Inter-litter interval365 days
Weight at birth3,500 g
Weight at weaning15,000 g
Adult weight45,500 g
Postnatal growth rate

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
[0001] Longevity Records: Life Spans of Mammals, Birds, Amphibians, Reptiles, and Fish

External resources

Integrated Taxonomic Information SystemITIS 180634
Animal Diversity WebADW account
Encyclopedia of LifeSearch EOL
Genome ProjectSearch NCBI
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