The Orange Band Surgeonfish, Orange-epaulette Surgeonfish, Gendarme Fish, Orangeband Surgeonfish, Orangebar Surgeonfish, Orange-blotch Surgeon, Orange-ear Surgeonfish, Olive Surgeonfish, Orange Epoulette Surgeon, Orangespot Surgeonfish, Orange Spot Tang, scientifically known as Acanthurus olivaceus, is a captivating and vibrantly colored fish species found in the vast expanse of the world’s oceans.
Description & Characteristics
Acanthurus olivaceus is a striking fish, reaching a maximum size of 35.0 cm. The species is easily recognizable by its characteristic olive-green to brown body, adorned with a striking orange band that runs vertically along the dorsal fin. This distinctive orange band gives the fish its various common names. The fish’s body is generally oval-shaped, with a compressed profile and a small, pointed snout. The most distinguishing feature of this fish is its sharp, scalpel-like spine located on the tail’s peduncle. This “surgeonfish” spine can inflict a painful wound when the fish feels threatened.
Habitat and Occurrence
Acanthurus olivaceus typically inhabits coral reefs, lagoons, and rocky areas, often in the Indo-Pacific region. The species’ depth range extends from 3.0 to 46.0 meters, allowing it to explore a variety of marine environments. The Orange Band Surgeonfish is found in various marine zones, including the tropical and subtropical waters of the Indian Ocean, Pacific Ocean, and Red Sea. Its presence in these diverse ecosystems highlights its adaptability and resilience.
Taxonomy
The species Acanthurus olivaceus belongs to the Class: Teleostei, Order: Acanthuriformes, and Family: Acanthuridae. This classification places the fish within a group of bony fish, characterized by their spiny fins and a distinctive appearance. The Order Acanthuriformes, which encompasses surgeonfish, is known for its laterally compressed bodies and scalpel-like spines. The Family Acanthuridae, which houses the Acanthurus olivaceus, includes a wide array of species, all distinguished by their characteristic surgeonfish spines.
Feeding
Acanthurus olivaceus primarily feeds on algae, playing a crucial role in maintaining the health and balance of coral reefs. Its diet also includes a variety of invertebrates, such as brine shrimps, krill, and mysis. In aquarium environments, Acanthurus olivaceus can be fed a diet consisting of commercially available flakes, frozen food, and nori-algae. Their foraging behavior helps keep coral reefs clean and promotes healthy algae growth.
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