Pacific Orange-spine Unicornfish
Naso lituratus
Pacific Orange-spine Unicornfish is a reef-associated surgeonfish with a distinctive orange caudal peduncle spine and a long, pointed snout. It grazes on algae in clear tropical Indo-Pacific waters and is usually encountered by divers more than anglers.
Identification points
- Distinct bright orange spine on each side of the caudal peduncle
- Long, protruding unicornfish snout with a steep forehead profile
- Dark body with a yellowish to orange tail and high dorsal profile
Habitat
Coral and rocky reef slopes, lagoon reef edges, and outer reef drop-offs in clear tropical Indo-Pacific waters; adults often cruise in small groups in surge-exposed areas.
Bait notes
Not a common sport target. If taken incidentally or targeted locally, small algae-based baits, clam, shrimp, or tiny reef-flash jigs may draw interest, but it usually prefers grazing and is better observed than fished.
Behavior
Primarily an algal grazer that feeds on benthic algae and filamentous growth, often in daylight. It is wary, fast-swimming, and commonly moves in pairs or small schools around reefs.
Caution
The orange scalpels near the tail can slash hands when handling, and all surgeonfish should be handled carefully. Reef fish consumption can carry ciguatera risk in some tropical areas; local advisories matter.
Fishing notes
Use light tackle near reef structure, with small, natural-looking presentations and minimal hardware. A stealthy approach and long casts are important; avoid heavy drag that can tear the mouth or spook fish.