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Lion's mane jellyfish 的卡通圖
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Lion's mane jellyfish

Cyanea capillata
名字的由來： It is named for its showy, trailing tentacles, which look like a lion's mane.1
只是會痛不要碰會痛，但不會對你造成嚴重傷害。
水母和會螫人的海洋生物 會螫人的觸手吃：肉
對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

The lion's mane jellyfish is one of the largest jellyfish known, and its bell can be over 2 m across in the far north. It lives in cold northern seas, including the English Channel, the North Sea and the Irish Sea. Its long, trailing stinging tentacles can wash up on beaches in late summer and autumn.1

分布在
Arctic, northern Atlantic and northern Pacific Oceans, including the English Channel, North Sea, Irish Sea and western Scandinavian waters1
北極海, 大西洋, 太平洋, 北海
首頁
It stays mostly near the surface, at no more than 20 m deep, and drifts with ocean currents. Late summer and autumn are when most are seen, as currents sweep them onto beaches.1
長度
50 cm 到 2,1 m (1,6 ft 到 6,9 ft)1
最高速度
大約 1,3 km/h（0,81 mph）
游泳, 粗略估計
牠吃什麼？
It eats fish, zooplankton and smaller jellyfish. It uses its stinging tentacles to catch, pull in and eat its prey.1
是真的！Lion's mane jellyfish 的照片
Lion's mane jellyfish。照片：W.carter。 CC0, Wikimedia Commons.

怎麼認出牠

  • Bell is divided into eight lobes, giving it the look of an eight-point star1
  • Young ones are light orange or tan, darkening to red and purple as they grow1
  • Long, thin, trailing tentacles, with many more tentacles around the mouth1
  • Bell is often about 50 cm across in lower latitudes, and much larger in the far north1
  • Usually found alone, rarely in groups1

常被誤認為： The blue jellyfish (Cyanea lamarckii) is sometimes found in the same waters. It is blue rather than red, and smaller, with a bell of about 10 to 20 cm across.1

毒液力量

會螫人的觸手

有東西碰到時，成千上萬個小小的刺細胞就會發射。

牠的毒液有什麼作用？

Its tentacles carry stinging cells, called nematocysts, which inject a sting when touched. The sting is very painful and feels like intense itching or burning, and it can cause temporary pain and redness where the skin was touched. Stings across large parts of the body can cause whole-body (systemic) effects, and medical attention is recommended in that case.1

牠對人有多危險？

對人的危險: 疼痛可能會非常痛，但幾乎從來不會很嚴重。

Stings are not known to be fatal in healthy people, and there is normally no real danger, though people with special allergies may be at risk. Rare severe stings in deep water can cause panic, which may lead to drowning. In July 2010, about 150 beachgoers were stung by the remains of one broken-up jellyfish on a beach in New Hampshire, US.1

如果牠螫人

  • Vinegar can be used to deactivate the stinging cells. If you have touched a large number of tentacles, get medical attention after exposure.1
  • 離開水裡，把觸手拿掉（戴手套或用布）。
  • 熱帶箱形水母：在螫傷處倒醋至少 30 秒，求救，並準備好做心肺復甦術（CPR）。藍瓶水母和大多數其他水母：用海水沖洗，再用熱水止痛。

一定要先打緊急電話（112、000、911）。這是一般急救指引，不是醫療建議。 急救基本知識

注意安全

  • 絕對不要碰、抓或捉弄野生動物，就算是很小的動物，就算牠看起來在睡覺或已經死了也一樣。
  • 給牠空間。如果遇到了，保持冷靜，慢慢往後退，讓牠自己離開。
  • 如果被牠螫了：保持冷靜，保持不動，打緊急電話（112、000、911）或趕快去醫院。記住牠的樣子，有照片會很有幫助。

牠不是想來抓你。牠用毒液來捕捉食物或保護自己，而且牠更想躲起來。 更多安全知識

在世界上的哪裡？

非洲亞洲歐洲北美洲南美洲澳洲與大洋洲太平洋大西洋北極海北海

牠有多大？

牠有多長？

Lion's mane jellyfish 大約 2,1 m 長 (6,9 ft)大人的腳踏車 大約 1,8 m (5,9 ft)一台汽車 大約 4,5 m (15 ft)
跟 4 隻家貓從鼻子接到尾巴一樣長跟 12 根香蕉頭尾相接一樣長可以在 140 秒內游完一座大游泳池（50 公尺）

Lion's mane jellyfish 跟「你」比起來有多大？

只是在你的瀏覽器裡做算術。什麼都不會儲存，也不會傳送到任何地方。

牠有多快？

值得知道

小知識

1

The longest recorded tentacles were 36.6 m long, longer than a blue whale.1

2

Its tentacles can still sting for up to 25 days after they have detached from the jellyfish.1

3

Each of the eight lobes of its bell has about 70 to 150 tentacles, and it has around 1,200 tentacles near its mouth.1

4

The leatherback sea turtle feeds almost exclusively on lion's mane jellyfish in large numbers during summer around Eastern Canada.1

5

Unlike most jellyfish that drift in groups, the lion's mane is completely solitary.1

破解迷思

迷思： The lion's mane jellyfish is the longest animal in the world.

真相： This claim was made on a TV show, but it was corrected. A bootlace worm reported in 1864 was said to be over 55 m long, and that report is doubted because bootlace worms can stretch well beyond their natural length. If that report is wrong, the lion's mane would be the longest animal.1

給毒液專家

學名
Cyanea capillata
類群
水母和會螫人的海洋生物
家人
Cyaneidae2
排序
Semaeostomeae
各大洲
北極海, 大西洋, 太平洋, 北海, 海洋
寶寶
The female carries fertilised eggs in a tentacle, and they grow into larvae that settle on a hard surface and become polyps, which then produce young jellyfish called ephyrae.1
壽命
大約 1 年1
對人的危險
2 / 5: 疼痛3

知識的出處

  1. Lion's mane jellyfish (Wikipedia (CC BY-SA 4.0))
  2. Cyanea capillata (iNaturalist): 名稱和分類。
  3. Venom Wiki: 危險等級、一般大小和速度估計都是我們自己定的。看看我們是怎麼算出來的： 我們怎麼評估危險.

這一頁的每個知識都有一個數字，指向它的出處。如果我們寫錯了，對不起，我們是動物迷，不是科學期刊。寫信到 [email protected] 告訴我們，我們會修正。

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同一類群的其他動物: 水母和會螫人的海洋生物

Australian box jellyfish水母和會螫人的海洋生物致命不要碰Irukandji jellyfish水母和會螫人的海洋生物可能致命不要碰Portuguese man o' war水母和會螫人的海洋生物需要看醫生不要碰Moon jellyfish水母和會螫人的海洋生物無害Common kingslayer水母和會螫人的海洋生物可能致命不要碰Hell's fire anemone水母和會螫人的海洋生物需要看醫生不要碰

也分布在: 北極海

Greenland shark其他有毒動物只是會痛Spiny dogfish有毒液的魚只是會痛不要碰Bootlace worm海膽、海星和蟲無害
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