Atlantic Bigeye

Fascinating facts about the Atlantic Bigeye

• A single Atlantic bigeye can grow to a record length of 50 cm (about 20 in), a size caught by an angler in 2001 and still listed as the IGFA world record. Most individuals you’ll see are around 14 in, so the record fish was more than one-third longer than the average. This shows how much growth potential lies hidden in a species that many anglers only meet as a modest-sized catch.
• When night falls, these reddish-orange fish gather in small aggregations just above the ocean floor. Their huge eyes are an adaptation for nocturnal hunting, letting them spot the tiny larvae of reef animals in the dark.
• You can find Atlantic bigeyes anywhere from 10 m down to beyond 250 m, but they most often hang out between 30 m and 50 m depth. This mid-water sweet spot on rocky bottoms and outer reef slopes gives them easy access to both the bottom-dwelling prey and the pelagic juveniles that drift higher. Their depth preferences illustrate how a single species can bridge multiple ocean layers.
• Although they range from the Northeastern United States all the way to Northern Argentina, the only recorded sighting outside that range was a lone individual off Sardinia, Italy, in 1979. Juveniles occasionally drift as far north as Nova Scotia on the Gulf Stream, but they cannot survive the cold and disappear. These occasional wanderers highlight the limits of their temperature tolerance despite a broad Atlantic distribution.
• Fishermen often label the Atlantic bigeye as a nuisance because it shows up in huge numbers as bycatch and carries a foul, garbage-like odor when hauled aboard. Yet its flesh is marketed fresh and praised for excellent quality, making it a small but valuable part of local seafood markets. This contrast between its unwanted reputation and culinary worth underscores how perception can mask a fish’s real value.

At a glance

About the Atlantic Bigeye

The Atlantic bigeye, Priacanthus arenatus, dazzles the night-time reef with its uniformly reddish-orange body and disproportionately large eyes. Measuring typically around 14 inches, with the IGFA world record at 50 cm (about 20 in) caught in 2001, this small-to-medium perciform bears a dorsal fin of 10 spines and 14 rays and an anal fin of 3 spines and 15 rays. Its striking coloration covers every scale, while the massive eyes betray a life spent hunting under cover of darkness. By day the fish skulks near rocky bottoms and outer reef slopes, but at night it gathers in modest aggregations just above the substrate, slipping through the water column from 30 to 50 m where it preys on tiny fish, bristle worms, crustaceans and the larvae of other reef dwellers. In the Atlantic’s subtropical and tropical realms, the bigeye ranges from the Northeastern United States to northern Argentina in the west, and from West Morocco to northern Angola in the east, with juveniles occasionally drifting northward to Nova Scotia on the Gulf Stream before retreating to warmer waters. Though its habitat spans from 10 m to beyond 250 m, it favors rocky outcrops and coral reef slopes on continental shelves. Its nocturnal habits and skittish nature make it a challenge for scientists, yet anglers prize its firm, fresh flesh, despite a reported foul, garbage-like odor when hauled from the depths.

More fish to discover

Browse Feravox