
Christmas Wrasse
thalassoma trilobatum
The Christmas Wrasse is a vibrant and highly active reef fish known for its stunning, festive coloration. Swimming with a distinctive rowing motion using only its pectoral fins, this energetic wrasse is a staple of Indo-Pacific shallow reefs. They are protogynous hermaphrodites, meaning they can change sex from female to male depending on social dynamics. This species plays a crucial role in maintaining reef health by feeding on a variety of small, hard-shelled invertebrates, making them fascinating to watch for snorkelers and divers alike.
生息地: Found in shallow, surge-swept coral reefs, rocky shores, and reef flats exposed to wave action.
外見
Terminal-phase males display a breathtaking array of colors, with reddish-orange bodies marked by two rows of green rectangular spots, a green-blue head with pink or orange facial stripes, and a bright yellow tail fin. Females and juveniles are more modestly colored, usually brownish-green with checkered patterns. They have a sleek, elongated, cigar-shaped body that typically reaches lengths between 15 to 30 centimeters.

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
A single dominant male maintains a harem of females; if he dies, the largest female will transition to male within a few weeks.
Like many wrasses, this species burrows into the sand at night or when threatened to hide from predators.
The Christmas Wrasse gets its name from its festive red and green coloration, which resembles traditional holiday colors.
特殊能力
Sequential Hermaphroditism
Females can transition into colorful dominant males when the social structure requires it, ensuring reproductive continuity.
Pectoral Swimming
Uses its pectoral fins in a unique rowing motion to maneuver swiftly through turbulent, wave-swept reef zones.
Sand Burrowing
Can dive quickly into sandy patches to bury itself to escape predators or sleep safely at night.
サイズと詳細
- 長さ
- 15-30 cm
- 体重
- 0.1-0.5 kg
- 寿命
- 5-10 年
- Top Speed
- 15 km/h
- 一度の産卵数
- 1000-5000
- 抱卵期間
- 1-2 日
食性と食事
Feeds primarily on small, hard-shelled benthic invertebrates such as crabs, mollusks, and sea urchins by crushing them with specialized pharyngeal teeth.
年齢による違い: Juveniles feed on smaller crustaceans and occasionally clean ectoparasites off larger fish, whereas adults target larger, hard-shelled invertebrates.
主な食物
- Crabs
- Sea Urchins
- Mollusks
- Brittle Stars
- Small Shrimps
採餌方法
- Foraging
生態系とのつながり
Giant Moray
Gymnothorax javanicus
Eaten by larger reef predators when seeking shelter in reef crevices at night.
Burrowing Urchin
Echinometra mathaei
The Christmas Wrasse hunts and feeds on these small sea urchins, helping control their populations.
Left-handed Hermit Crab
Calcinus laevimanus
The wrasse uses its strong jaws to crack open the shells of these crabs.
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。
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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
Christmas Wrasseを見分けるには?
Christmas Wrasse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。
Christmas Wrasseの長さは何ですか?
15-30 cm
Christmas Wrasseの体重は何ですか?
0.1-0.5 kg
Christmas Wrasseの寿命は何ですか?
5-10 年
Christmas Wrasseのtop Speedは何ですか?
15 km/h
Christmas Wrasseは何を食べますか?
Feeds primarily on small, hard-shelled benthic invertebrates such as crabs, mollusks, and sea urchins by crushing them with specialized pharyngeal teeth.
Christmas Wrasseは通常どこに生息していますか?
Found in shallow, surge-swept coral reefs, rocky shores, and reef flats exposed to wave action.
Christmas Wrasseはどのように狩りをしますか?
Foraging
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