AnAge entry for Orcaella brevirostris
Classification (HAGRID: 02294)
- Taxonomy
-
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia (Taxon entry)
Order: Cetacea (Taxon entry)
Family: Delphinidae (Taxon entry)
Genus: Orcaella
- Species
- Orcaella brevirostris
- Common name
- Irrawaddy dolphin
- Synonyms
- Orcaella fluminalis, Orca brevirostris
Lifespan, ageing, and relevant traits
- Maximum longevity
- 30 years (wild)
- Source
- ref. 624
- Sample size
- Medium
- Data quality
- Acceptable
- Observations
One study in the wild estimated age for 18 individuals with the oldest estimated to be around 30 years [0624].
Life history traits (averages)
- Female sexual maturity
- 1,826 days
- Male sexual maturity
- 1,826 days
- Gestation
- 426 days
- Weaning
- 471 days
- Litter size
- 1 (viviparous)
- Litters per year
- Inter-litter interval
- Weight at birth
- 12,300 g
- Weight at weaning
- 45,000 g
- Adult weight
- 190,000 g
- Postnatal growth rate
Metabolism
No information on metabolism is available.
References
- [0443] Ronald Nowak (2003), Walker's Marine Mammals of the World
- [0434] Ronald Nowak (1999), Walker's Mammals of the World
- [0624] Stacey and Arnold (1999), Orcaella brevirostris
- [0455] Virginia Hayssen et al. (1993), Asdell's Patterns of Mammalian Reproduction: A Compendium of Species-Specific Data
External Resources
- Integrated Taxonomic Information System
- ITIS 180471
- Animal Diversity Web
- ADW account (if available)
- Encyclopaedia of Life
- Search EOL
- NCBI Taxonomy
- Taxonomy ID 48747
- Entrez
- Search all databases
- Ageing Literature
- Search Google Scholar or Search PubMed
- Images
- Google Image search
- Internet
- Search Google