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弓頭鯨

File:Bowhead_Whale_NOAA.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ174652· pop 67· linked from 592 articles

Also known as Balaena mysticetus, Greenland right whale, Arctic whale

一種主要生活在北極海域的鯨

OverviewAI-generated

The bowhead whale (*Balaena mysticetus*) is a marine mammal belonging to the family Balaenidae within the order Cetartiodactyla. Classified as a species, it is also referred to by the common names Ballena Boreal, Ballena de Groenlandia, and Baleine de Grande Baie. The taxon was described by Linnaeus in 1758 and has existed since the Late Pleistocene, with a start time of about 200 thousand years ago.

Its primary food source is zooplankton. The species has a gestation period of 11 months and a longest observed lifespan of 211 years. According to the IUCN Red List from 2018, its conservation status is Least Concern, while iNaturalist lists it as vulnerable. It is included in Appendix I of CITES.

Synthesized by Vinony from 36 facts across 6 sources: Wikidata, PubMed, iNaturalist, WoRMS, IUCN Red List, Vinony graph. Generated from structured data (not the Wikipedia text) and checked against those facts — may still contain errors.

Species

Least Concern

Arctic right whale

Species

  1. PhylumChordata
  2. ClassMammalia
  3. OrderCetartiodactyla
  4. FamilyBalaenidae
Habitatmarine
Observations211

Maximum longevity: 211 years (wild) Observations: These animals exhibit slow growth and high survival. Growth may be faster in females than in males, and it slows down markedly at around 40-50 years of age. Sexual maturity is probably reached at age 20-25. Using an indirect method for age estimation based on aspartic acid racemization, the bowhead whale has been recorded as the longest-lived mammal thanks to one male estimated to be 211 years-old. The same study found three other male specimens estimated to be over 100 years of age. Very few obvious signs of pathology were found in old bowheads. The 211 year-old specimen was reported to appear old with though meat and blubber. One of the centenarian males exhibited a spondylitic lesion on the vertebra. Reproductive senescence has not been reported, though detailed studies are lacking (George et al. 1999).

via IUCN

Wikidata facts

Instance of
taxon
Parent taxon
Balaena
Image
Gemeinnüzzige Naturgeschichte des Thierreichs (Plate 50) (6008528637).jpg
Show 13 more facts
taxon rank
species
IUCN conservation status
Least Concern
taxon name
Balaena mysticetus
Commons category
Balaena mysticetus
Commons gallery
Balaena mysticetus
taxon common name
grenlandski kit
gestation period
11
longest observed lifespan
211
start time
200000-00-
CITES Appendix
Appendix I of CITES
main food source
zooplankton
short name
B. mysticetus
temporal range start
Late Pleistocene
Sources (3)

via Wikidata · CC0

Article · 中文

弓頭鯨(學名:Balaena mysticetus)又称北极露脊鲸、格陵蘭露脊鯨、北極鯨、格陵兰鲸、巨极地鲸,是一种生活在北极和海域的露脊鲸科动物,露脊鲸属(Balaena,又称弓头鲸属)现存的唯一物种(其他几种现生露脊鲸则另归于真露脊鲸属 Eubalaena)。表皮呈蓝黑色或暗灰色,躯干肥壮,体型巨大。雌性大于雄性,平均约15米长、54.5吨重,最重约为120吨。得名自独特而硕大的弓状头颅,用以撞破冰层出水呼吸。上颌狭窄,下颌末端具白色斑块。身上无皮茧和肉瘤,喷气孔部位明显下陷。背部浑圆,无背鳍和隆起物。尾幹末端最细处有浅灰色斑块。 弓头鲸拥有鬚鯨家族中最长的鯨鬚,以及整个动物界中最大的嘴和最厚的脂肪——其黑色鲸须最长可达4米,带有绿色光泽,用于滤食磷虾等小型动物;唇线呈弯弓状延伸,约占身体总长的1/3;脂肪层厚达43-50厘米,能在极寒的水中保持体温。此外,弓头鲸可能是最长寿的哺乳动物,寿命超过200年。 弓头鲸曾是捕鲸业的主要猎杀对象,一度濒临灭绝,20世纪后半叶以来成为国际上的保护鲸种,数量在不断回升,现被世界自然保护联盟(IUCN)评估为无危物种。

Abstract from DBpedia / Wikipedia · CC BY-SA

Gallery (14)