🦭Harbour seal
港海豹（學名：Phoca vitulina）是分佈在北半球溫帶及極地海域的海豹。牠們出沒於大西洋及太平洋的海岸水域，與及波羅的海及北海，是分佈最廣的鰭足類。 港海豹呈褐色、黃褐色或灰色，吻呈V狀。成年港海豹長1.85米及重132公斤。雌海豹比公海豹長壽，可以活到30-35歲，雄性的壽命為20-25歲。牠們只會留在熟悉的環境，一般都是陸上掠食者不能到達的岩石地區，且有足夠的魚類食物供應。公海豹會在水中為交配而打鬥，雌海豹會與較強壯的公海豹交配。每次只會生一胎，由雌海豹哺育。幼海豹出生後幾小時內就懂得游泳及潛水，生長速度很快。牠們身體上有鯨脂來保暖。 港海豹全球數量約為40-50萬隻，某些地區的亞種正在瀕危。捕獵海豹現已全面禁止。
Text: Wikipedia, CC BY-SA 4.0.
IUCN Red List assessment, 2016.
- Body mass
- 94 kg
- Body length
- 1.81 m
- Shoulder height
- not recorded
- Top speed
- not recorded
- Bite force
- not recorded
- Maximum lifespan
- 48 years
Everything we know about the Harbour seal
Typical adult figures. Where a value is an estimate rather than a measurement, it says so.
Body mass94 kgrecord 150 kg · SeaLifeBaseCOMBINEOther figures ↓Hide ↑
Record: largest individual on record
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
By sex
- Female110 kgSeaLifeBasev25.04SeaLifeBase populates Weight independently of Length; the two are not guaranteed to describe the same individual. Verify before publishing.
Figures vary
- 115 kgAnAgeAnAge build 15, 2023-07-03 (HAGR)data quality: acceptable
Body length1.81 mCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
By sex
- Female1.7 mSeaLifeBasev25.04
Figures vary
- 1.9 mSeaLifeBasev25.04
Brain mass269 gCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Maximum lifespan48 yearsCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 48 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 maturity4.2 yearsCOMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Gestation254 daysCOMBINEOther figures ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Figures vary
- 253 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 levelCarnivoreCOMBINEDetails ↓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
Population density5.68 per km²COMBINEDetails ↓Hide ↑
Source: COMBINE · v1 (Soria et al. 2021) · CC BY 4.0
Volume l94 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 Harbour seal yet: shoulder height, top speed, bite force.
Family tree
- kingdomAnimalia
- ›phylumChordata
- ›classMammalia
- ›orderCarnivora
- ›familyPhocidae
- ›genusPhoca
- ›speciesPhoca vitulina
- classMammals · Mammalia
- orderCarnivorans · Carnivora
- suborderCaniformia
- familyPhocidae
All 13 branches ↓Fewer branches ↑
- kingdomMetazoa
- phylumChordata
- subphylumCraniata
- subphylumVertebrata
- superclassGnathostomata
- superclassSarcopterygii
- superclassTetrapoda
- classMammals · Mammalia
- subclassTheria
- superorderLaurasiatheria
- orderCarnivorans · Carnivora
- suborderCaniformia
- familyPhocidae
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镜头下的动物
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