Irrawaddy Dolphin

Orcaella brevirostris (Owen ex Gray 1866)

Scott Bowers cc-by-nc

Orcaella brevirostris (Irrawaddy Dolphin) is a species of mammals in the family Delphinidae. They are listed as vulnerable by IUCN. They are associated with freshwater habitat. Individuals are known to live for 30 years.

URI: http://eol.org/schema/terms/vulnerable
Definition: A taxon is Vulnerable when the best available evidence indicates that it meets any of the criteria A to E for Vulnerable, and it is therefore considered to be facing a high risk of extinction in the wild.
Source: http://www.iucnredlist.org/apps/redlist/details/15419

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URI: http://purl.obolibrary.org/obo/ENVO_00000873
Definition: A biome that applies to the freshwater realm.

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EOL has data for 30 attributes, including:

animal population density
- URI: http://purl.bioontology.org/ontology/CSP/2383-1863
- Definition: Number of animals in a population relative to space.
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37.36
body size
- URI: http://purl.obolibrary.org/obo/OBA_VT0100005
- Definition: The size of a multicellular organism
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105 cm
diet breadth
- URI: http://eol.org/schema/terms/DietBreadth
- Definition: Number of dietary categories eaten by an organism.
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1
geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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Central Indo-Pacific
habitat breadth
- URI: http://eol.org/schema/terms/HabitatBreadth
- Definition: Number of habitat layers used by an organism
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1
habitat includes
- URI: http://eol.org/schema/terms/Habitat
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tropical ocean
- URI: http://eol.org/schema/terms/TropicalOcean
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population group size
- URI: http://eol.org/schema/terms/PopulationGroupSize
- Definition: Number of individuals in a group that spends the majority of their time in a 24 hour cycle together
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5.5
population trend
- URI: http://eol.org/schema/terms/population_trend
- Definition: i.e., increasing, decreasing, stable, or unknown
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Decreasing
prenatal development duration
- URI: http://eol.org/schema/terms/PrenatalDevelopmentDuration
- Definition: The duration of the development from fertilized, deposited or implanted egg to hatching/birth. Corresponds to egg incubation duration in oviparous animals and to gestation period duration in viviparous animals.
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426 days
water temperature
- URI: http://eol.org/schema/terms/SeawaterTemperature
- Definition: Temperature of the water at a location where this organism has been observed or collected.
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28.706 degrees celsius
weaning age
- URI: http://eol.org/schema/terms/WeaningAge
- Definition: Age when primary nutritional dependency on the mother ends and independent foraging begins to make a major contribution to the offspring’s energy requirements.
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471 days
weight
- URI: http://purl.obolibrary.org/obo/PATO_0000128
- Definition: A physical quality inhering in a bearer that has mass near a gravitational body.
- Comment: Ontology Description: http://bioportal.bioontology.org/ontologies/PATO Ontology Source: http://purl.obolibrary.org/obo/pato.owl
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45000 g

Known occurrences, collected specimens and observations of Irrawaddy dolphin. View this species on GBIF

Scott Bowers cc-by-nc