Almaco Jack

Overview

The almaco jack is a powerful, deep-bodied relative of the amberjacks - Wikipedia files it under the name longfin yellowtail - that gives offshore anglers a brutal, bulldogging fight around wrecks and deep structure. Firmer and finer on the table than its bigger cousins, it is a prized catch on hard bottom and around rigs.

Identification

Almaco jacks are dusky, with faint amber or olive stripes down the sides, a dark upper body and a lighter belly that can look brassy or lavender, and a dark bar running back from the eye. The body is less elongated and more flattened than in most jacks, and the dorsal and anal fins are long with sickle-shaped outer edges - the front rays of the dorsal are nearly twice as long as the dorsal spines. They are deeper-bodied and darker than the greater amberjack.

Range & Habitat

This is an open-ocean fish that comes onto slopes and reefs and, according to Wikipedia's account, visits wrecks more often than most other jacks. In the western Atlantic it lives mostly from Cape Cod to northern Argentina, and in the eastern Pacific from California to Peru. Small groups hold over deep wrecks, reefs, rigs and seamounts.

Behavior & Diet

Almaco jacks feed by day and by night on smaller fish, squid, octopus, crab and shrimp, and are known for unusual stamina on the line. They strike hard and fight straight down toward the wreck.

Best Seasons

Caught year-round where seasons allow over deep structure, with warm months often best.

How to Catch Them

Drop live bait or vertical jigs to deep wrecks and rigs, or troll and cast near surfacing schools; be ready for an immediate powerful dive.

Tackle & Rigs

Heavy conventional or stout spinning gear, braided line, heavy leaders, and live-bait or vertical-jig rigs for a hard-pulling fish.

Landing, Handling & Release

Turn them fast off the drag before they reach structure; vent or descend deep-caught release fish. Bleed and ice keepers.

Table Quality

Almaco jack is good eating - firmer and milder than greater amberjack, and often free of the worms that plague larger AJs. The FDA's seafood hazards guide lists almaco jack among the fish associated with ciguatera fish poisoning, a toxin of subtropical and tropical reef fish that cooking and freezing do not reliably eliminate; the risk depends on where the fish was caught, so heed local advisories.

Common Mistakes

Fishing too light for a bulldogging fish and letting it break you off in the wreck.

Regulations & Conservation

Managed with jack and amberjack limits that vary by region. Confirm current federal and state regulations before keeping fish. We do not give legal advice.

FAQ

Almaco or greater amberjack? Almaco are deeper-bodied and darker with a taller front dorsal.

Good eating? Yes - firmer and milder than a big AJ. The FDA lists the species among fish associated with ciguatera, so heed local advisories for fish from tropical reef waters.

Sources

• Wikipedia, "Almaco jack" (article titled "Longfin yellowtail", read 12 October 2026): appearance, range, habits and diet.