The Acropora Butterfly, Chevroned Butterflyfish, Rightangle Butterflyfish, Right-angled Butterfly-fish, Triangulate Butterflyfish, V-lined Butterflyfish, Chevron Butterflyfish, scientifically known as Chaetodon trifascialis, is a vibrant and striking species of butterflyfish found in the tropical waters of the Indo-Pacific region.
Description & Characteristics
Chaetodon trifascialis boasts a distinctive appearance, marked by a black body adorned with three prominent white bands, giving it its common names. The first band extends horizontally across the eye, while the second, wider band wraps around the body, resembling a chevron or a V-shape. The third band, located near the tail, is typically thinner and shorter. This unique coloration and the fish’s elongated, compressed body shape distinguish it from other butterflyfish species. Reaching a maximum size of 18.0 cm, Chaetodon trifascialis is a relatively small member of the Chaetodontidae family.
Habitat and Occurrence
Chaetodon trifascialis can be found in a variety of marine environments, typically inhabiting coral reefs and lagoons. Its depth range extends from the surface down to 30.0 meters, allowing it to thrive in both shallow and deeper waters. This species is commonly observed in the Indo-Pacific region, where it’s a familiar sight on coral reefs in the tropical Pacific Ocean.
Taxonomy
The species Chaetodon trifascialis belongs to the Class: Teleostei, Order: Acanthuriformes, and Family: Chaetodontidae. This classification places it within the large and diverse group of ray-finned fishes, specifically within the order that also includes surgeonfishes and tangs. The Chaetodontidae family, commonly known as butterflyfishes, is renowned for its vibrant coloration and intricate patterns.
Feeding
Chaetodon trifascialis is a highly specialized feeder, primarily relying on coral polyps for sustenance. Its diet consists almost entirely of these tiny organisms, making it a corallivorous fish. This feeding strategy is a key factor in the species’ ecological role within coral reef ecosystems.
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