Blue button
The blue button is a small sea creature that floats on the surface of warm oceans. It looks like a jellyfish, but it is really a colony of tiny animals called polyps. Its sting is not powerful, but it can cause slight skin irritation.1

怎麼認出牠
- A round, almost flat, hard golden brown float about one inch (2.5 cm) wide1
- Bright blue turquoise to yellow polyps hanging from the float1
- Blue strands with knobs of stinging cells at the tips1
- Looks similar to a jellyfish, but each 'individual' is a colony of polyps1
常被誤認為: It looks superficially like a jellyfish. It is related to Velella and to the Portuguese man o' war, which are also colonial animals that float on the surface.1
毒液力量
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?
It has stinging cells called nematocysts at the tips of its tentacle-like strands. The sting is not powerful and may cause slight irritation to human skin.1
牠對人有多危險?
對人的危險: 輕微跟蜜蜂螫差不多或更輕微。對人基本上無害。The sting is not powerful and may cause slight irritation. In recent years, the first recorded case of contact dermatitis (a skin rash caused by contact) from this species was reported in Japan.1
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
牠有多大?
牠有多長?
大約跟一根迴紋針一樣長Blue button 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?
小知識
Each apparent individual is actually a colony of hydrozoan polyps, not a single animal.1
Young Malabar trevally fish shelter under the floats and panic when removed from them.1
Young Malabar trevally fish appear to prefer a particular colony and will return to their own partner when separated and put back in the same tank.1
It is preyed on by sea slugs known as blue dragons and by violet sea-snails of the genus Janthina.1
The blue button has a single mouth under its float, which it uses for both eating and removing waste.1
破解迷思
迷思: A blue button is a single jellyfish-like animal.
真相: Each blue button is a colony of hydrozoan polyps, which are related to anemones, corals and jellyfish.1
知識的出處
- Porpita porpita (Wikipedia (CC BY-SA 4.0))
- Porpita porpita (iNaturalist): 名稱和分類。
- 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。
會螫人的觸手

