Spotted jelly
The spotted jelly is a jellyfish with spots on the top of its bell, the rounded body. It lives in the warm Indo-Pacific oceans, and in some saltwater lakes in Palau and Indonesia. Its lake populations are famous because they have lost most of their sting.1

怎麼認出牠
- Distinctive spots on the top of the bell1
- Colour ranges from greenish blue to olive green, from the algae living in its tissues1
- Eight rhopalia (sensory organs) along the edge of the bell1
- Eight frilled oral arms, each ending in a club-like appendage1
- Numerous small mouths along the bottom of the oral arms, unlike many other jellies1
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?
The venom is protein-based and is delivered by stinging cells called nematocytes (cnidocytes) on the upper surfaces of the oral arms. In jellyfish living in marine lakes, conditions in the lake are thought to break down this venom, so those populations do not sting humans.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。Jellyfish in the open ocean have stinging cells on their oral arms. Populations in marine lakes, such as Jellyfish Lake in Palau, do not sting humans.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?
跟 9 塊玩具積木排成一排一樣長Spotted jelly 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
Lake populations of spotted jellies have lost most of their ability to sting, probably after being cut off in marine lakes long ago.1
Each day, spotted jellies rise to the surface and follow the sun from east to west, so their algae can photosynthesise.1
Lake jellyfish are over three times wider than ocean ones, yet their tentacles are about the same length.1
Unlike many jellies, spotted jellies have several small mouths along their oral arms.1
A sea anemone called Entacmaea medusivora preys on spotted jellies, catching them in its tentacles.1
At night they stay lower in the water column.1
破解迷思
迷思: All spotted jellies sting people.
真相: Ocean populations have stinging cells, but the jellyfish in marine lakes such as Jellyfish Lake in Palau do not sting humans.1
知識的出處
- Spotted jelly (Wikipedia (CC BY-SA 4.0))
- Mastigias papua (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
