The yellowfin surgeonfish (Acanthurus xanthopterus) is a grey-blue fish with yellow spots around the eyes, yellow-grey dorsal, anal, and pectoral fins, and light base of the tail fin. It changes colour as it ages. Its body is compressed and rounded. There are sharp knife-like spines on the sides of the caudal peduncle. The ends of the tail fin are crescent-shaped.
The species is benthopelagic. It inhabits coral and rocky reefs in the Indo-Pacific region, bays and lagoons at depths of 5 to 90 meters. Juveniles prefer turbid shallow water in protected coastal areas. They feed on detritus, feces of pelagic species, and seaweed.
| Salinity | Marine |
| Depth | From 1 to 100 meters |
| Length | 70 cm |
| Red List | Least concern |
| Threat to Human | Venomous |
| Synonyms | |
|---|---|
|
Hepatus aquilinus, Hepatus crestonis, Hepatus guntheri, Hepatus xanthopterus, Teuthis crestonis, Teuthis guentheri, Teuthis xanthopterus, Teuthis güntheri, Acanthurus crestonis, Acanthurus rasi, Acanthurus reticulatus |
|
| Local names | |
| Australia | Yellowfin surgeonfish |
Acanthurus xanthopterus is widespread in the Indo-Pacific and is common in parts of its range. It is a targeted food fish in parts of its distribution. There are no signs of global population declines through harvesting. Its distribution overlaps with a number of marine protected areas. It is therefore listed as Least Concern.
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2021
