Peacock Grouper
探検魚類
Peacock Grouper
cephalopholis argus
The Peacock Grouper, also known as the celestial grouper or argus grouper, is a stunning and ecologically significant predator inhabiting Indo-Pacific coral reefs. Adorned with a striking pattern of iridescent blue spots over a dark body, this medium-sized fish is a master of the reef understory. It plays a vital role as an apex predator in its native habitats, keeping populations of smaller reef fish in balance and maintaining reef health. However, its introduction to Hawaii in the 1950s led to it becoming an invasive species, where it is known locally as 'roi' and is heavily managed due to its impact on native species. Despite this, in its native range, it remains a beloved sighting for snorkelers and divers, often seen hovering near caves and coral formations. It exhibits fascinating social structures, with dominant males defending territories that encompass the home ranges of several females. Their interactions with other reef dwellers, including cooperative hunting efforts, make them one of the most intellectually compelling fish to observe in the wild.
生息地: Found in shallow coral reefs, clear lagoons, and rocky marine areas up to depths of forty meters.
外見
The Peacock Grouper is characterized by a robust, compressed body covered in hundreds of brilliant, neon-blue spots, each finely ringed in black, set against a dark brown, olive, or near-black background. Its rear body often displays five to six pale, vertical bars, and the margins of its pectoral and tail fins are typically edged in bright blue or white. It features a large, upturned mouth equipped with multiple rows of small, sharp teeth, and can reach a maximum length of about sixty centimeters.
界Animalia門Chordata綱Actinopterygii目Perciformes科Epinephelidae属Cephalopholis
カテゴリ
魚類レア度
Common
危険度
1/5 · 非常に低い
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おもしろい事実
Dominant males are highly territorial, defending a large home range that overlappingly contains the territories of up to twelve females.
Known as 'Roi' in Hawaii, this fish was intentionally introduced in 1956 to enhance local fisheries but has since become an invasive pest.
They are ciguatoxic in certain regions, meaning they bioaccumulate ciguatoxins from their prey, making them dangerous for humans to eat.
特殊能力
能力
Cooperative Hunting
Signals and coordinates with moray eels and octopuses using head-shakes to flush out prey from tight crevices.
能力
Dynamic Camouflage
Capable of rapidly shifting its body coloration to show distinct pale vertical bars to blend with reef shadows or signal territory.
能力
Suction Feeding
Uses its large mouth to create a powerful negative pressure vacuum, instantly drawing in unsuspecting prey from several inches away.
サイズと詳細
- 長さ
- 30-60 cm
- 体重
- 1-5.5 kg
- 寿命
- 10-20 年
- 一度の産卵数
- 10000-80000
- 抱卵期間
- 1-2 日
食性と食事
A nocturnal and crepuscular predator that feeds heavily on small reef fish and occasionally targets crabs and shrimps.
年齢による違い: Juveniles primarily feed on small benthic crustaceans like copepods and shrimps, transitioning to a fish-dominated diet as they mature.
主な食物
- Damselfish
- Surgeonfish
- Wrasses
- Crabs
採餌方法
- Ambush
生態系とのつながり
mutualism
Giant Moray Eel
Gymnothorax javanicus
Often hunts cooperatively with this species, utilizing head signals to target hidden prey.
hunts
Goldring Surgeonfish
Ctenochaetus strigosus
A common prey item of the peacock grouper in coral reef environments.
eaten by
Blacktip Reef Shark
Carcharhinus melanopterus
A larger apex predator that preys upon the peacock grouper in shallow reef ecosystems.
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
Peacock Grouperを見分けるには？
Peacock Grouper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。
Peacock Grouperの長さは何ですか？
30-60 cm
Peacock Grouperの体重は何ですか？
1-5.5 kg
Peacock Grouperの寿命は何ですか？
10-20 年
Peacock Grouperは何を食べますか？
A nocturnal and crepuscular predator that feeds heavily on small reef fish and occasionally targets crabs and shrimps.
Peacock Grouperは通常どこに生息していますか？
Found in shallow coral reefs, clear lagoons, and rocky marine areas up to depths of forty meters.
Peacock Grouperはどのように狩りをしますか？
Ambush
Peacock Grouperの一度の産卵数は何ですか？
10000-80000
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