Doublebar Rabbitfish
Siganus virgatus
Doublebar Rabbitfish (Siganus virgatus) is a venomous rabbitfish of Indo-West Pacific reefs and lagoons, often feeding in pairs or small schools. It grazes algae and seagrass on shallow coral flats and reef edges; the spines can inflict a painful sting.
Identification points
- Two broad dark vertical bars: one through the eye/shoulder area and a second midbody bar.
- Pale yellow to silvery body with a darker back and lighter belly.
- Rabbitfish profile with a small mouth and two separate dorsal fins bearing sharp spines.
Habitat
Shallow coral reefs, reef flats, lagoons, seagrass beds, and mangrove-fringed shores in tropical Indo-West Pacific waters; usually over sand/rubble near algae-covered structure.
Bait notes
Not a premier sportfish. Small bits of shrimp, squid, clam, or algae-based baits can take them; tiny soft plastics or small baitfish imitations may work around reef edges, but they are usually targeted more as food fish than game fish.
Behavior
A diurnal grazer that browses filamentous algae, seaweeds, and seagrass; often forms small schools or pairs and retreats into shelter when disturbed. Active in calm, shallow water and can be wary in clear conditions.
Caution
Dorsal, anal, and pelvic spines are venomous and can cause severe pain; handle only with puncture-resistant tools or by the mouth, never by the fins. Verify local regulations, as some reef fish harvests may be restricted.
Fishing notes
Use light tackle and small hooks near reefs, flats, and lagoon edges; present baits naturally and avoid heavy casting into coral to prevent snagging. They often nibble before committing, so subtle drifts and minimal disturbance help.