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AnAge entry for Dugong dugon

Classification (HAGRID: 03529)
TaxonomyKingdom: Animalia
    Phylum: Chordata
        Class: Mammalia (Taxon entry)
            Order: Sirenia
                Family: Dugongidae
                    Genus: Dugong
SpeciesDugong dugon
Common nameDugong
SynonymsDugong dugon hemprichii, Dugong dugon dugon, Dugong dugon tabernaculi, Dugong dugong

Lifespan, ageing, and relevant traits

Maximum longevity73 years (captivity)
Sourceref. 671
Sample sizesmall
Data qualityacceptable
Observations

The dugong may feature some form of continuous tooth development [0002]. It is estimated that these animals live more than 50 years in the wild, with one estimate suggesting that they may live up to 73 years [0434]. Their longevity has not been studied in detail in captivity, but one animal was still alive after 25.3 years [0671].

Life history traits (averages)

Female sexual maturity3,470 days
Male sexual maturity3,470 days
Gestation374 days
Weaning548 days
Litter size1 (viviparous)
Litters per year0.2
Inter-litter interval1,521 days
Weight at birth27,500 g
Weight at weaning
Adult weight360,000 g
Postnatal growth rate
Maximum longevity residual210 %

Metabolism

No information on metabolism available.

References
[0671] Richard Weigl (2005), Longevity of Mammals in Captivity; from the Living Collections of the World
[0443] Ronald Nowak (2003), Walker's Marine Mammals of the World
[0610] Ernest (2003), Life history characteristics of placental non-volant mammals
[0434] Ronald Nowak (1999), Walker's Mammals of the World
[0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
[0002] Caleb Finch (1990), Longevity, Senescence, and the Genome
[0680] Wootton (1987), The effects of body mass, phylogeny, habitat, and trophic level on mammalian age at first reproduction

External resources

Integrated Taxonomic Information SystemITIS 180679
Animal Diversity WebADW account
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