🦭Australian sea lion
オーストラリアアシカ（Neophoca cinerea）はオーストラリアに固有のアシカである。現在はNeophoca属の単型であるが、絶滅種 Neophoca palatina が唯一の同属種として知られる。個体数は約14,730頭と推定され、西オーストラリア州の野生生物保護法 (1950年) では、「特別な保護が必要」とされている。絶滅危惧種に指定されている。 12か月の生殖周期に適合する他の鰭脚類と異なり、5か月から17・18か月の間で変化する季節的な繁殖周期が特徴である。メスは銀色または淡黄褐色で、下腹部はクリーム色、オスは暗褐色で黄色のたてがみがあり、メスよりも大きい。
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2015.
- Body mass
- 189 kg
- Body length
- 2.15 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 24 years
Everything we know about the Australian sea lion
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass189 kgrecord 300 kg · SeaLifeBaseCOMBINEOther figures ↓Hide ↑
Record: largest individual on record
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
By sex
- Female105 kgSeaLifeBasev25.04SeaLifeBase populates Weight independently of Length; the two are not guaranteed to describe the same individual. Verify before publishing.
Figures vary
- 190 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length2.15 mCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
By sex
- Female1.8 mSeaLifeBasev25.04
Figures vary
- 2.5 mSeaLifeBasev25.04
Brain mass403 gCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Maximum lifespan24 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 24 yearsAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Generation length13 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Age at maturity4.3 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation312 daysCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 258 daysAnAgeAnAge 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 levelOmnivoreCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Activity cycleCrepuscular / mixedCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l189 LaverageDetails ↓Hide ↑
Body mass at ~1.0 kg/L, the density of vertebrate tissue.
average = a mean across sexes or species in a group.
Not recorded for Australian sea lion yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderCarnivora
- ›familyOtariidae
- ›genusNeophoca
- ›speciesNeophoca cinerea
- classMammals · Mammalia
- orderCarnivorans · Carnivora
- familyOtariidae
- genusNeophoca
All 14 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderLaurasiatheria
- orderCarnivorans · Carnivora
- suborderCaniformia
- familyOtariidae
- genusNeophoca
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