Yellowmargin Triggerfish
Pseudobalistes flavimarginatus
Yellowmargin Triggerfish is a large reef fish with bold blue-gray markings and bright yellow fin margins. It lives on coral and rocky reefs across the Indo-Pacific and can be territorial, especially around its nest or shelter.
Identification points
- Large triggerfish with a deep, compressed body and a small eye behind a pointed snout
- Bright yellow edging on the soft dorsal and anal fins, plus yellow in the tail margins
- Blue-gray to olive body with pale bluish lines and a distinctive large white spot near the chest area
Habitat
Coral and rocky reefs, lagoon drop-offs, seaward reef slopes, and adjacent sandy patches in the Indo-Pacific; adults often hold territory near reef structure.
Bait notes
Use crab, shrimp, squid strips, clam, or cut bait fished tight to reef edges and bottom structure; sturdy jigs and crab-imitating lures can also work. Heavy tackle is needed to stop it reaching cover.
Behavior
A strong-jawed benthic predator that feeds on hard-shelled invertebrates such as sea urchins, crustaceans, and mollusks. It is notably territorial and may attack intruders near nests or shelters.
Caution
Powerful teeth and strong jaws can inflict bites; handle with care. Large reef-associated fish may carry ciguatera in some areas, so local consumption advisories matter.
Fishing notes
Fish close to coral heads, bommies, and drop-offs with abrasion-resistant leader and strong hooks. Set the hook firmly and turn the fish immediately away from reef snagging cover; release carefully if unwanted because of its teeth and temperament.