Atlantic Trumpetfish

Details

Aulostomus maculatus—the Atlantic trumpetfish—belongs to the family Aulostomidae and is a classicstealth ambush predator on Caribbean–western Atlantic reefs. With an extremely elongated body and a longtrumpet‑like snout, it hovers above reefs or stands vertically among gorgonians/seagrass, striking prey with a sudden suction‑feeding burst.

Ecology & Biology

• Diet: small reef fishes (wrasses, gobies, juvenile damselfishes) and shrimps/crabs; capture via rapid buccal expansion.

• Behaviour: employs shadow‑stalking by sidling up to larger non‑predatory fishes to approach prey; also hides vertically beside sea fans.

• Reproduction: pelagic broadcast spawner with planktonic eggs/larvae that settle on reefs.

Identification

• Form: very slender, tubular body; long trumpet snout with terminal mouth.

• Colour: capable of rapid colour changes (browns, olives, yellows); fine spots/lines; an all‑yellow morph occurs.

• Fins: short spiny portion anteriorly on the dorsal fin, followed by soft rays; large pectorals for precise hovering; rounded to truncate tail.

Size & Longevity

• Length: typically 40–80 cm, up to about ~100 cm.

• Life: roughly 6–10 years in the wild (estimates vary).

Range & Habitat

Tropical western Atlantic/Caribbean: Florida–Bahamas–Bermuda to the Antilles and north‑eastern Brazil. Common on reef slopes, crests, outer walls and in seagrass/gorgonian zones from 2–60 m.

Conservation & People

• Threats: habitat degradation, coral bleaching and coastal pollution; minor bycatch and aquarium collection.

• Status: populations considered stable where reefs remain healthy; MPAs and reef restoration support prey and habitat.

IUCN: Least Concern (LC) (verify with the latest assessment).