Longfin Inshore Squid

doryteuthis pealeii

The Longfin Inshore Squid (Doryteuthis pealeii) is a highly dynamic cephalopod found in the northwest Atlantic Ocean. Well-known for its schooling behavior and incredibly rapid movements, this species plays a vital ecological role both as a voracious predator of small fish and crustaceans, and as a primary food source for marine mammals, seabirds, and larger fish. They are remarkable for their complex social interactions, which are largely mediated by their highly advanced, instantaneous color-changing capabilities. In scientific history, this squid holds a legendary status. Its giant axon, which is hundreds of times larger than a human neuron, served as the foundational model organism for pioneering neurobiologists, leading directly to the discovery of how nerve impulses travel along cellular pathways.

生息地: Typically found in temperate continental shelf and slope waters, ranging from very shallow coastal bays and estuaries during summer to deep offshore waters up to 400 meters in winter.

外見

This squid features a long, torpedo-shaped mantle with large, rhomboidal fins that extend along at least half of the total length of its body. Its coloration is highly variable due to specialized pigment cells, rapidly shifting from translucent white and iridescent greens to deep reddish-browns depending on its environment and emotional state. It possesses eight arms and two longer feeding tentacles lined with sharp-ringed suckers, alongside large, complex eyes that lack a cornea.

AnimaliaMolluscaCephalopodaMyopsidaLoliginidaeDoryteuthis
Longfin Inshore Squid
Longfin Inshore Squid

カテゴリ

Invertebrate

レア度

Common

危険度

1/5 · 非常に低い

スナップ

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おもしろい事実

Like most squids, they possess three separate hearts: two branchial hearts to pump blood to the gills and one central systemic heart to circulate blood to the rest of the body.

The giant axon of this squid is up to 1,000 times wider than a human neuron, which made it highly instrumental in the discovery of how nerve cells transmit electrical signals.

They lay their eggs in communal spawning grounds, creating large, clustered structures of gelatinous capsules often called 'sea mops'.

特殊能力

能力

Dynamic Chromatophores

Using specialized pigment cells controlled directly by its brain, the squid can instantaneously alter its skin color and patterns to camouflage or communicate with other squids.

能力

Jet Propulsion

By forcefully expelling water from its muscular mantle through a directional siphon, it can achieve incredibly fast bursts of forward or backward acceleration.

能力

Rapid Neural Reflexes

Possesses a giant axon system that transmits electrical impulses at extreme speeds, allowing for near-instantaneous escape reflexes when threatened.

サイズと詳細

長さ
1550+ cm
体重
0.10101+ kg
寿命
11+ 年
Top Speed
25 km/h
一度の産卵数
1000020000+
抱卵期間
1127+ 日
渡りの距離
200 km

食性と食事

An active and opportunistic predator that hunts in schools, preying primarily on small schooling fish, crustaceans, and other cephalopods.

年齢による違い: Larvae and juveniles feed on tiny planktonic copepods and larval fish, while adults transition to larger fish, crabs, and frequently engage in cannibalism of smaller squid.

主な食物

  • Atlantic Herring
  • Sand Lance
  • Mysid Shrimp
  • Juvenile Squid

採餌方法

  • Pursuit

生態系とのつながり

eaten by

Bluefish

Pomatomus saltatrix

The bluefish is a major predator of the longfin inshore squid in coastal waters during the summer months.

hunts

Atlantic Herring

Clupea harengus

Adult squids actively hunt schools of young Atlantic herring as a primary energy source.

eaten by

Summer Flounder

Paralichthys dentatus

Summer flounders share sandy bottom habitats and prey heavily upon squid resting near the sea floor.

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

Longfin Inshore Squidを見分けるには?

Longfin Inshore Squid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。

Longfin Inshore Squidの長さは何ですか?

1550+ cm

Longfin Inshore Squidの体重は何ですか?

0.10101+ kg

Longfin Inshore Squidの寿命は何ですか?

11+ 年

Longfin Inshore Squidのtop Speedは何ですか?

25 km/h

Longfin Inshore Squidは何を食べますか?

An active and opportunistic predator that hunts in schools, preying primarily on small schooling fish, crustaceans, and other cephalopods.

Longfin Inshore Squidは通常どこに生息していますか?

Typically found in temperate continental shelf and slope waters, ranging from very shallow coastal bays and estuaries during summer to deep offshore waters up to 400 meters in winter.

Longfin Inshore Squidはどのように狩りをしますか?

Pursuit

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