Northern Sea Nettle
探検Animal
Northern Sea Nettle
chrysaora melanaster
The Northern Sea Nettle (Chrysaora melanaster) is a stunning and ecologically vital species of jellyfish inhabiting the chilly waters of the North Pacific. Easily recognized by its golden-brown bell and elegant dark stripes, this sea nettle is a key predator in pelagic ecosystems. During late summer, they can form massive blooms in the Bering Sea, dominating the biomass of the region and significantly shaping the local marine food web. Despite their delicate appearance, these jellyfish are formidable hunters that use their long, stinging tentacles to capture zooplankton, krill, and small fish.
生息地: Found in the cold, pelagic and coastal waters of the North Pacific Ocean, particularly within the Bering Sea and Gulf of Alaska.
外見
This large jellyfish features a dome-shaped bell that typically grows 30 to 60 centimeters in diameter, characterized by a translucent cream or yellowish background adorned with 16 distinct dark brown radiating stripes resembling wheel spokes. Hanging from the center of the bell are four long, highly ruffled, reddish-brown oral arms. Surrounding the margin of the bell are 24 long, thin, trailing tentacles that can extend several meters in length.
界Animalia門Cnidaria綱Scyphozoa目Semaeostomeae科Pelagiidae属Chrysaora
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
During massive blooms, the collective weight of these jellyfish in the Bering Sea can reach up to several million metric tons.
The scientific species name 'melanaster' translates to 'black star' in Greek, referring to the dark radiating star pattern on its bell.
Young fish often seek shelter beneath the bell and among the venomous tentacles of the sea nettle, gaining protection from larger predators.
特殊能力
能力
Venomous Cnidocytes
Possesses specialized stinging cells along its tentacles that inject toxins to paralyze prey and ward off predators.
能力
Bell Contraction Propulsion
Uses rhythmic contractions of its muscular bell to create water currents, allowing it to move vertically through the water column.
能力
Regenerative Capability
Can rapidly repair damaged tissue and regenerate lost tentacles or oral arms after predatory attacks.
サイズと詳細
- 長さ
- 30-60 cm
- 体重
- 1-5 kg
- 寿命
- 1-2 年
食性と食事
Feeds heavily on a variety of zooplankton, small fish, larval fish, and other jellyfish species drift-caught in its tentacles.
年齢による違い: Polyp stages feed on microscopic organic particles, whereas the mature medusa stages hunt active zooplankton and small fish.
主な食物
- Copepods
- Larval fish
- Euphausiids
- Comb jellies
採餌方法
- Ambush
生態系とのつながり
eaten by
Leatherback Sea Turtle
Dermochelys coriacea
Adult turtles feed on jellyfish swarms as a major source of hydration and nutrients.
competitor
Walleye Pollock
Gadus chalcogrammus
Competes for zooplankton food sources and occasionally feeds on pollock larvae.
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
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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
Northern Sea Nettleを見分けるには？
Northern Sea Nettle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。
Northern Sea Nettleの長さは何ですか？
30-60 cm
Northern Sea Nettleの体重は何ですか？
1-5 kg
Northern Sea Nettleの寿命は何ですか？
1-2 年
Northern Sea Nettleは何を食べますか？
Feeds heavily on a variety of zooplankton, small fish, larval fish, and other jellyfish species drift-caught in its tentacles.
Northern Sea Nettleは通常どこに生息していますか？
Found in the cold, pelagic and coastal waters of the North Pacific Ocean, particularly within the Bering Sea and Gulf of Alaska.
Northern Sea Nettleはどのように狩りをしますか？
Ambush
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