探検Animal

Greater Moon Jelly

aurelia labiata

The Greater Moon Jelly (Aurelia labiata) is a mesmerizing marine drifter commonly found along the Pacific coast of North America. Renowned for its translucent, saucer-like bell and graceful pulsations, this cnidarian captivates beachgoers and divers alike. Unlike typical jellyfish, Aurelia labiata possesses a highly distinctive scalloped bell margin divided into sixteen distinct lobes, giving it a beautifully complex, flower-like appearance as it drifts through temperate coastal waters. These gentle giants are often seen gathering in large aggregations called blooms. They rely on oceanic currents to travel while using their delicate, stinging tentacles to capture tiny planktonic prey. While their venom is generally harmless to humans, they play a crucial role in marine food webs, serving as a vital food source for sea turtles and larger predatory jellyfish species.

生息地: Found in coastal waters, fjords, and sheltered bays along the North American Pacific coast, often close to the surface or near marinas and docks.

外見

This species is characterized by a translucent, saucer-shaped bell that ranges from milky white to soft shades of pink or lavender. Its bell margin features sixteen prominent scallops or indentations, which distinguishes it from other closely related moon jellies. Looking closely at its center, one can spot its horseshoe-shaped reproductive organs, typically arranged in four distinct pale yellow or pink loops. Flung beneath the bell are four long, frilly oral arms used for feeding, surrounded by a fringe of short, fine, hair-like tentacles.

AnimaliaCnidariaScyphozoaSemaeostomeaeUlmaridaeAurelia
Greater Moon Jelly
Greater Moon Jelly

カテゴリ

Animal

レア度

Common

危険度

1/5 · 非常に低い

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おもしろい事実

The Greater Moon Jelly has sixteen scalloped lobes along its rim, twice as many as the more widely known common moon jelly (Aurelia aurita).

They are made of over 95% water and lack a brain, heart, blood, or gills, relying instead on oxygen diffusing directly through their thin skin.

Under stressful conditions or starvation, moon jellies can shrink in size and revert to a younger state to survive.

特殊能力

能力

Pulsating Propulsion

By contracting its circular muscles, the jelly expels water from beneath its bell to propel itself forward, creating currents that pull tiny planktonic prey toward its tentacles.

能力

Four-Lobed Feeding Network

It utilizes four frilly oral arms coated in sticky mucus to transport captured plankton directly from its marginal tentacles to its central mouth.

能力

Regenerative Healing

If damaged by predators or rough surf, this species can rapidly regenerate lost body parts and restore its symmetrical structure within days.

サイズと詳細

長さ
15+ cm
体重
0.1+ kg
寿命
1+ 年
一度の産卵数
10000+
抱卵期間
3+ 日

食性と食事

Feeds opportunistically on microscopic zooplankton, copepods, larval fish, and other small drifting organisms.

年齢による違い: The benthic polyp stage feeds on small suspended organic particles, while the swimming mature medusa stage captures larger zooplankton and small fish larvae.

主な食物

  • Copepods
  • Larval fish
  • Mollusk larvae
  • Rotifers
  • Invertebrate eggs

採餌方法

  • Passive Drift

生態系とのつながり

eaten by

Leatherback Sea Turtle

Dermochelys coriacea

Adult moon jellies are a primary, moisture-rich food source for migrating leatherback turtles.

eaten by

Egg Yolk Jellyfish

Phacellophora camtschatica

This larger predatory jellyfish actively hunts and consumes Aurelia labiata in the Pacific Northwest.

hunts

Pacific Herring

Clupea pallasii

Greater Moon Jellies feed heavily on the floating eggs and newly hatched larvae of the Pacific herring.

特徴

このオブジェクトにはまだ特徴バッジが割り当てられていません。

別名

まだ別名はありません。

コレクション

テーマが追加されると、このオブジェクトのコレクションがここに表示されます。

安全性

危険度

1/5 · 非常に低い

まだ特別な安全上の注意はありません。

よくある質問

Greater Moon Jellyを見分けるには?

Greater Moon Jellyを識別する最も簡単な方法は、Snappit自然識別アプリを使用することです。

Greater Moon Jellyの長さは何ですか?

15+ cm

Greater Moon Jellyの体重は何ですか?

0.1+ kg

Greater Moon Jellyの寿命は何ですか?

1+ 年

Greater Moon Jellyは何を食べますか?

Feeds opportunistically on microscopic zooplankton, copepods, larval fish, and other small drifting organisms.

Greater Moon Jellyは通常どこに生息していますか?

Found in coastal waters, fjords, and sheltered bays along the North American Pacific coast, often close to the surface or near marinas and docks.

Greater Moon Jellyはどのように狩りをしますか?

Passive Drift

Greater Moon Jellyの一度の産卵数は何ですか?

10000+

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