第 1081 號，共 1 402 號

Broome Irukandji jellyfish

Malo maxima

可能致命不要碰不治療的話可能會害死你。如果牠螫了你，要趕快求救。

會螫人的觸手

The Broome Irukandji jellyfish is a tiny, see-through jellyfish. Its sting can cause Irukandji syndrome, a serious illness, and it is the most dangerous of the four Malo species. It lives in the tropical waters off Broome in western Australia.1

分布在

Tropical western Australian waters, especially the Broome region1

印度洋

首頁

It lives in tropical western Australian waters around Broome. It does not usually stay close to shore, but sometimes drifts near it, which is when people most often meet it. Signs that Irukandji jellyfish are nearby include a stinging feeling in the water, known as sea lice, and clusters of salps.1

長度

5 cm (2 in)1

最高速度

大約 5 km/h（3,1 mph）

游泳, 粗略估計

怎麼認出牠

Has a tall, narrow, sturdy body with a flattened top.1
Grows to about 5 cm, which is small even for a jellyfish.1
Is translucent, so it is very hard to see in the water.1
Swims more like a fish than a typical jellyfish.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 venom causes Irukandji syndrome, which can bring sweating, anxiety, muscle spasms, severe high blood pressure and, later, low blood pressure and heart failure. The sting itself causes little local reaction, and the symptoms do not appear straight away. They get worse as time goes on.1

牠對人有多危險？

對人的危險: 非常危險如果沒有治療，牠可能會害死一個人。

It is extremely dangerous and its sting can be potentially fatal. Only the Irukandji jellyfish and the box jelly are known to cause Irukandji syndrome, and the box jelly is far more venomous. Stings are still painful and dangerous even though they are less fatal than box jelly stings.1

如果牠螫人

The most effective treatment seems to be an intravenous infusion of magnesium, given in hospital.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印度洋

牠有多大？

牠有多長？

比你的小指頭還短可以在 36 秒內游完一座大游泳池（50 公尺）

Broome Irukandji 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？

一個正在游泳的人 大約 3 km/h (1,9 mph)

Broome Irukandji jellyfish 大約 5 km/h (3,1 mph)

奧運游泳選手 大約 8 km/h (5 mph)

值得知道

小知識

It has been known to cause Irukandji syndrome, which is why it is treated as a serious hazard in the waters where it lives.1

Its venom affects the heart, and scientists have only recently worked out how.1

It swims more like a fish than a jellyfish, although scientists do not yet know why.1

Blooms of Irukandji jellyfish, including this species, are becoming more common because of human activity such as fishing and pollution.1

Blooms can make it hard for ships to pass and make the water dangerous for divers.1

給毒液專家

學名: Malo maxima
類群: 水母和會螫人的海洋生物
家人: Carukiidae2
排序: Carybdeida
各大洲: 印度洋, 海洋
寶寶: It develops from a fixed polyp into a free-swimming jellyfish, which took 111 days after fertilisation in research.1
對人的危險: 4 / 5: 非常危險3