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South American sea nettle

Chrysaora plocamia

名字的由來： Its common name comes from its sting, which is said to feel like a bee sting or a nettle plant. Its specific name comes from the Ancient Greek word plókamos, meaning a braid of hair.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 South American sea nettle is a large jellyfish with a red-brown bell and long, spiralling arms. It drifts in the open ocean along both the Pacific and Atlantic coasts of South America. Its stinging tentacles catch the tiny animals it eats.1

分布在

Pacific coast of Peru, south along Chile to Tierra del Fuego, and north along the Atlantic coast of Argentina, with a few records from Uruguay1

大西洋

首頁

It is a planktonic species that floats and travels with ocean currents. It usually lives near the ocean surface, in the sunlit upper layer of the sea. Blooms and strandings (when jellyfish wash up on beaches) are reported on both South American coasts.1

長度

1 m (3,3 ft)1

最高速度

大約 1,1 km/h（0,68 mph）

游泳, 粗略估計

牠吃什麼？

It eats mainly a wide variety of zooplankton, which are tiny animals drifting in the water. It catches and kills prey with its stinging tentacles.1

South American sea nettle 的照片 — South American sea nettle。照片：Bill Abbott。 CC BY-SA 2.0, Wikimedia Commons.

怎麼認出牠

Red-brown bell1
Long, spiralling arms1
Thin outer tentacles that surround inner tentacles which are often white and fluffy in appearance1
Most mature individuals have a bell 25 to 40 cm across1

常被誤認為： It was historically confused with C. hysoscella. That species is now known to be restricted to the northeast Atlantic, so it is not found in South American waters.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。

如果牠螫人

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大西洋

牠有多大？

牠有多長？

跟 2 隻家貓從鼻子接到尾巴一樣長跟 6 根香蕉頭尾相接一樣長可以在 160 秒內游完一座大游泳池（50 公尺）

South American sea nettle 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？

一隻花園蝸牛 大約 0,05 km/h (0,03 mph)

South American sea nettle 大約 1,1 km/h (0,68 mph)

一個正在游泳的人 大約 3 km/h (1,9 mph)

值得知道

小知識

Its bell can grow up to 1 metre across, but most adults are much smaller.1

Crab larvae may form a parasitic relationship with it, using it for food and shelter.1

A single polyp can produce between 3 and 10 young jellyfish called ephyrae in about 7 to 10 days.1

Its population has increased in recent years, which may be linked to climate change and major changes to ocean ecosystems.1

Its stinging tentacles are used to catch its prey, and the adults are eaten by sea turtles and some fish.1

破解迷思

迷思： It is the only sea nettle found in South America.

真相： Despite its common name, it is not the only sea nettle in the region. C. lactea is another sea nettle found there.1

給毒液專家

學名: Chrysaora plocamia
類群: 水母和會螫人的海洋生物
家人: Pelagiidae2
排序: Semaeostomeae
各大洲: 大西洋, 海洋
寶寶: Fertilised eggs drift in the ocean, and often attach to the arms of adults for safety. They develop into swimming larvae called planulae, which later settle and grow into polyps.1
對人的危險: 2 / 5: 疼痛3