Ocean surgeonfish – Acanthurus tractus

Ocean surgeonfish, , Acanthurus tractus
Size: 38.1 cm
Depth: 11 - 45 m
Water Type: Marine

Acanthurus tractus, commonly known as the Lineated Surgeonfish, is a species of surgeonfish found in the Indo-Pacific region.

Description & Characteristics

Acanthurus tractus is a relatively small fish, with a maximum size of 38.1 cm. Its body is elongated and laterally compressed, with a distinctive bright yellow coloration and numerous dark brown or black vertical stripes that extend along its flanks.

Habitat and Occurrence

Acanthurus tractus is a reef-associated fish, typically inhabiting coral reefs and rocky reefs in the Indo-Pacific region. They are found in depths ranging from 11.0 to 45.0 meters, making them a common sight in both shallow and deeper reef environments. This species is particularly prevalent in the tropical and subtropical waters of the Indo-Pacific region, where it contributes to the diverse ecosystem of these marine zones.

Taxonomy

Acanthurus tractus is classified within the Class: Teleostei, Order: Acanthuriformes, and Family: Acanthuridae. This family, known for its distinctive scalpel-like spines located near the tail, includes a wide variety of surgeonfish species found in tropical and subtropical marine waters worldwide.

Feeding

Acanthurus tractus, like many surgeonfish, is primarily herbivorous. It feeds on algae, which it grazes from the reef surface using its strong, specialized teeth. This grazing behavior plays a crucial role in maintaining the health of coral reefs by controlling the growth of algae and preventing it from outcompeting corals for space.

Associated Species

Image References

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