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Warsaw Grouper

Hyporthodus nigritus

Water Type

Saltwater

Also known as

Black jewfish, Mero de Varsovia

IUCN status

Critically Endangered

About the Warsaw Grouper

The Warsaw Grouper is a truly colossal fish, distinguished by its massive, robust body and dark, purplish-brown coloration, often with faint mottling. It possesses a notably large mouth with thick lips and small, deep-set eyes, giving it a somewhat prehistoric appearance. Its dorsal fin is prominent, featuring 10 sharp spines and 10-11 soft rays, while the caudal fin is typically rounded. This species can grow to immense sizes, making it one of the largest groupers in the Atlantic.

Source: FishBase & iNaturalist

Habitat

These deepwater giants inhabit the outer continental shelf and slope, typically found around deep reefs, wrecks, rocky ledges, and hard bottom structures. They prefer depths ranging from 200 to over 1000 feet, where they can find ample cover and ambush prey.

Distribution

Its range spans the Western Atlantic, from Massachusetts south through the Gulf of Mexico, including Cuba and Trinidad, and extending down to Rio de Janeiro, Brazil.

Behaviour

Warsaw Groupers are solitary, opportunistic ambush predators, lurking near structure to surprise their prey. Their diet primarily consists of crabs, lobsters, shrimp, and various bottom-dwelling fish. While not known for extensive migrations, they are powerful fighters when hooked, often retreating into structure to break lines. They are generally slow-moving, conserving energy for sudden strikes on unsuspecting meals.

Edibility

★★★★★

Widely regarded as one of the finest eating fish, the Warsaw Grouper yields large fillets of firm, white, and flaky meat with a mild, delicate flavor. It's excellent for baking, grilling, frying, or steaming.

Lure suggestion

Targeting these deepwater titans requires extremely heavy conventional tackle, including stout rods, large conventional reels, and braid in excess of 100-200lb test. Large, fresh natural baits like whole bonitas, mackerel, amberjack, or large squid are most effective, presented on a heavy-duty deep-drop rig with strong circle hooks (16/0-20/0) and substantial lead weights (3-10 lbs, sometimes more). Electric reels are commonly used due to the extreme depths involved.