Bicolor Damselfish
Stegastes partitus
Bicolor Damselfish is a small Caribbean reef damselfish that defends territories on shallow reefs and inshore hard-bottom habitat. It feeds mainly on benthic algae and tiny invertebrates, and is best regarded as an ornamental/research species rather than a target for anglers.
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Identification points
- Dark blue to black upper body with a conspicuous yellow tail base and lower rear half
- Pale blue to whitish lower body in contrast with the dark back
- Small reef damselfish shape with a rounded caudal fin and obvious territorial hovering behavior
Habitat
Shallow coral reefs, patch reefs, reef slopes, and rubble or hard-bottom areas, usually close to structure in warm tropical western Atlantic waters.
Bait notes
Not a meaningful sport-fishing target. If encountered incidentally, it may take tiny marine baits or small fly/mini-jig offerings, but collection is usually for aquarium trade or scientific sampling rather than angling.
Behavior
Highly territorial and aggressive for its size, often hovering close to its defended patch of algae. It grazes on turf algae and small benthic organisms and will dart into cover when disturbed.
Caution
Handle carefully around reef habitat to avoid cuts from coral. Observe local reef-fish and marine-protected-area regulations; consumption is not typically relevant, and there are no major food-fish safety notes for this species.
Fishing notes
Best approached with small, delicate tackle around reef structure if sampling is permitted. Avoid damaging coral and check local regulations before any capture or collection, as reef fish rules may apply.