🐬Irrawaddy dolphin
Orcela tuponosá (Orcaella brevirostris), též delfín tuponosý, je kytovec žijící v řekách a pobřežních vodách. Orcela vzhledem (nikoliv barvou) připomíná kytovce běluhu z čeledi narvalovitých, vzrůstem je však výrazně menší. Váha se pohybuje od 90 do 200 kg, dorůstá délky 2,1–2,8 m. Má šedou až břidlicovou barvu, břicho je světlejší, neoplývá žádnou výraznější kresbou. Hřbetní ploutev, která se nachází asi ve dvou třetinách zad tohoto delfína, je malá a zakulacená, čelo vysoké a zaoblené, místo vyčnělé tlamy má jen hřebenovité pysky. Výdechový otvor na temeni hlavy má, na rozdíl od podobných savců, tvar písmene U. Na každé straně čelisti má 12–19 zubů.
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2017.
- Body mass
- 190 kg
- Body length
- 2.63 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 30 years
Everything we know about the Irrawaddy dolphin
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass190 kgCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 190 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length2.63 mCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 2.75 mSeaLifeBasev25.04
Maximum lifespan30 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 30 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Generation length15 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Age at maturity5.0 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation1.2 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 1.2 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Litter size1COMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 1AnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Trophic levelCarnivoreCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Activity cycleCrepuscular / mixedestimatedCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Population density37 per km²COMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l190 LaverageDetails ↓Hide ↑
Body mass at ~1.0 kg/L, the density of vertebrate tissue.
estimated = a model's estimate for a species nobody has measured; average = a mean across sexes or species in a group.
Not recorded for Irrawaddy dolphin yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderCetacea
- ›familyDelphinidae
- ›genusOrcaella
- ›speciesOrcaella brevirostris
- classMammals · Mammalia
- orderEven-toed hoofed animals · Artiodactyla
- infraorderWhales & dolphins · Cetacea
- genusOrcaella
All 15 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderLaurasiatheria
- orderEven-toed hoofed animals · Artiodactyla
- suborderWhippomorpha
- infraorderWhales & dolphins · Cetacea
- familyDelphinidae
- genusOrcaella
More about the Irrawaddy dolphin
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