第 1108 号，共 1 402 张

Egg-yolk jellyfish

Phacellophora camtschatica

名字的由来： It is named for the yellow centre of its body, which looks like an egg yolk.1

无害对人无害。不用担心。

水母和海中蜇人生物

会蜇人的触手吃：肉

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

The egg-yolk jellyfish is a very large jellyfish with a bright yellow centre that looks like a fried egg. It lives in cool seas across most of the world's oceans and is most common in the Northern Pacific. It is special because it can grow very large, and it is one of the few jellyfish that can survive in low-oxygen water.1

生活在

Cool waters of most of the world's oceans, most common in the Northern Pacific1

太平洋

首页

It lives in cool open seas and drifts with the current. Its polyp stage attaches to rocks and piers, so people may come across the animal near piers and rocky shores.1

长度

59 cm (1.9 ft)1

最高速度

约 1.3 公里/小时（0.81 英里/小时）

游泳, 粗略估计

它吃什么？

It mainly eats gelatinous zooplankton and smaller jellyfish, along with fish and fish larvae. It catches prey with its tentacles, covers the food in mucus, and brings it to its mouth with its oral lobes.1

Egg-yolk jellyfish的照片 — Egg-yolk jellyfish。照片：Michael Bear。 CC BY 4.0, iNaturalist.

怎样认出它

A yellow centre that looks like a broken egg yolk, surrounded by opaque white tissue1
A large bell, sometimes close to 60 cm across1
16 clusters of tentacles, each with up to a few dozen tentacles, and each tentacle up to 6 m long1
Broad, curtain-like oral arms1
Mostly drifts with the current, with only limited movement1

常被误认为： The lion's mane jellyfish (Cyanea capillata) is sometimes confused with this species. The smaller Cotylorhiza tuberculata, which is found mainly in warmer water, especially in the Mediterranean Sea, is also called a fried egg jellyfish.1

毒液之力

会蜇人的触手

一碰到东西，成千上万个小刺细胞就会发射。

它的毒液会造成什么？

Its tentacles contain nematocysts, stinging cells that help it catch prey. Its sting is weak, which allows some small animals to ride on its bell and steal food from its arms and tentacles.1

它对人有多危险？

对人的危险: 轻微像被蜜蜂蜇一下或更轻。对人基本无害。

Its sting is weak.1

它害怕时会做什么？

Its tentacles contain nematocysts, which also help protect it from predators.1

如果它蜇人

离开水面，取下所有触手（戴手套或用布）。
热带箱水母：在蜇伤处倒醋至少 30 秒，呼救，并准备好做心肺复苏。僧帽水母和大多数其他水母：先用海水冲洗，再用热水止痛。

一定先拨打你的急救电话（112、000、911）。这里是一般急救指导，不是医疗建议。急救基础

注意安全

永远不要摸、抓或逗弄野生动物，即使是很小的，即使它看起来在睡觉或已经死了。
给它留出空间。如果遇到它，保持冷静，慢慢后退，让它走自己的路。
如果被它蜇了：保持冷静，保持不动，拨打你的急救电话（112、000、911）或尽快去医院。记住它长什么样，拍张照片会有帮助。

它不是冲着你来的。它用毒液捕猎或保护自己，而且它更愿意躲起来。更多安全知识

在世界哪里？

非洲亚洲欧洲北美洲南美洲澳大利亚和大洋洲太平洋

它有多大？

它有多长？

和 3 根香蕉首尾相接一样长和 18 块玩具积木排成一排一样长140 秒就能游完一个大泳池（50 米）

Egg-yolk jellyfish和你比起来有多大？

只是在你的浏览器里算一算。什么都不会被保存或发送到任何地方。

它有多快？

一只花园蜗牛 约 0.05 公里/小时 (0.03 mph)

Egg-yolk jellyfish 约 1.3 公里/小时 (0.81 mph)

一个在游泳的人 约 3 公里/小时 (1.9 mph)

值得了解

事实

Its tentacles can reach up to 6 m long, which is far longer than its bell.1

It has no gills, lungs or circulatory system. It takes in oxygen through its thin body surface instead.1

The giant deep-sea octopus Haliphron atlanticus clings to this jellyfish and eats its oral arms and stomach.1

It can survive in low-oxygen water for several hours at a time, and it sometimes dives into these zones during the day to avoid competition.1

Small crabs and an amphipod called Hyperia medusarum can live on its bell, and some feed on the parasites that infest the jellyfish.1

给毒液专家

学名: Phacellophora camtschatica
类别: 水母和海中蜇人生物
家人: Phacellophoridae2
排序: Semaeostomeae
大洲: 太平洋, 海洋
宝宝: Eggs are fertilised and develop into swimming larvae called planulae. These settle on the seabed and grow into polyps, which later release young jellyfish called ephyrae.1
对人的危险: 1 / 5: 轻微3