Black Jack Fishing in Florida: Deep Wrecks & Big Fights

The black jack is the heavyweight loner of the Caranx clan — the deepest-bodied jack in Florida waters, steep-headed and uniformly dark, haunting deep wrecks and ledges where its silver schoolmates rarely go. It does not travel in cheerful thousands; it holds in small groups over serious structure, and when one eats, the fight is the real thing.

Black jacks run five to fifteen pounds in Florida, with fish past twenty on the deep Gulf wrecks — big for a Caranx, and built proportionally deeper and stronger than any of them. Most are caught by amberjack and grouper anglers who set out for something else and find themselves connected to the darkest, hardest-pulling fish on the wreck.

This guide covers where black jack hold on both coasts, the deep bait and jig tactics that take them, how to separate them from the other dark fish of the deep structure, and their regulation status — unregulated, on the statewide default, with the family rule that does not extend to them.

Where to Catch Them

Black jack are structure fish of the deeper half of the shelf. They hold over wrecks, ledges, and high-relief reef in roughly 60 to 300 feet, singly or in small groups, often near the bottom and tight to the structure — a distribution that explains both their size and their scarcity in the catch.

Zones and habitat

• Deep wrecks: the classic black jack address — sunken ships on both coasts, in the same 100-to-300-foot band that holds big amberjack and almaco jack.
• Ledges and high-relief reef: natural structure with real vertical relief, where blacks patrol the bottom edge.
• Offshore humps and rock piles (Gulf): isolated deep structure off the Panhandle and the southwest coast holds the Gulf’s best black jack fishing.
• Reef drop-offs (Keys and southeast): the deep reef edge produces blacks for anglers working the wall and the wrecks below it.

Gulf vs. Atlantic vs. Keys

The Gulf’s deep wreck fields — off the Panhandle, the middle grounds, and southwest Florida — produce the most and the largest black jacks. The Atlantic’s deep ledges and wrecks off central and northeast Florida hold them in smaller numbers, and the Keys take occasional fish on the deep ocean-side wrecks. The species has no regulations anywhere in Florida, so nothing changes with the coast.

Access without a boat

None. Black jack are a deep-water boat species, taken incidentally on offshore structure trips; no shore fishery exists. Deep wreck and ledge trips are the only way in.

When to Catch Them

Black jacks hold on deep structure year-round, and the fishing follows the offshore calendar — weather windows, not seasons, decide when you can work their water. Summer’s calm seas open the deep grounds most often; the fish are on the wrecks in winter too, between fronts.

On the day, blacks feed around the structure through moving water and often sit up in the column over a wreck during a good tide, mixed with or just apart from the amberjack schools — the dark shape in the school is the one you want.

How to Catch Them

Tackle. Fish them like amberjack, because that is the company they keep: heavy conventional or spinning gear in the 40–65 lb class, long leaders, and drag enough to stop a big, deep-bodied fish from reaching the wreck. Light tackle over deep structure is a donation program.

Baits. Live baitfish — blue runners, grunts, pinfish, threadfin herring — fished near the structure are the top producers, with large cut baits taking fish on bottom rigs. The blacks compete directly with amberjack and almaco for the same offerings; there is no separate black jack bait, just a black jack result.

Technique. Work the structure deliberately: baits and jigs in the lower half of the column over the wreck, vertical jigs ripped up off the bottom, and baits soaked just above the relief. When the hookup comes, the first run decides everything — a black jack that turns for the wreck in the first seconds is usually gone, so fish heavy drag early and ease off only in open water.

Identifying your black jack. Depth and darkness: the deepest-bodied Caranx, with a steep, blunt head and a uniform dark brown to black color over the body and fins, plus heavy scutes along the tail stalk. A fresh fish may show a pale greenish cast on the pectoral fin — that is normal color, not a different species. Against the deep-structure neighbors: the almaco jack trails long fin lobes; the greater amberjack is longer-bodied, amber-banded, and carries its own strict rules; the horse-eye jack is a silver schooling fish of shallower water. Uniform dark over deep structure is the black.

Table notes. Darker, richer flesh than the silver jacks — eaten fresh it has its followers, particularly smoked and in dips, and it serves as hardy cut bait. Most black jacks are kept for the smokehouse or released; either way, the fight is the point of the encounter.

Florida Regulations

Florida has no species-specific size or bag limit for black jack; the statewide default for unregulated species — 2 fish or 100 pounds per person per day, whichever is more — applies. That status rests on the absence of any rule: black jack is not named on FWC’s unregulated-species page, does not appear in the regulations chart, has no species page on the regulations index, and is absent from FWC’s regulated-species list. As with every Caranx in this wave, blue runner’s 100-fish chart limit is species-specific to blue runner and does not extend to black jack.

Rule	Statewide (Gulf and Atlantic)
Minimum size	None
Daily bag	2 fish or 100 pounds per person per day, whichever is more (unregulated-species default)
Season	Open year-round
Gear	Hook and line, spears, gigs, haul seines, and cast nets are legal gear for unregulated species

What the default means here: for a fish that can pass twenty pounds, the 2-fish prong is the binding limit for anyone keeping blacks — two big fish never approach 100 pounds combined, and two is the day’s whole allowance per person. A saltwater license is required where applicable, and the unregulated framework’s banned gear (chemicals, explosives, electricity, bang sticks, fish traps) applies as it does to every unregulated species.

Regulations verified against FWC, October 2026 — always confirm current rules at myfwc.com before you fish.

Quick Facts

• Scientific name: Caranx lugubris
• Also known as: black jack, black trevally, caballi (locally)
• Max size in Florida: commonly 5 to 15 pounds over deep wrecks; fish past 20 pounds in the Gulf
• Table quality: fair — dark, rich flesh, best smoked or in dips
• Fight quality: outstanding — the hardest, deepest fight in the Caranx family

Related Species

Other members of the jack family that Florida anglers target include Leatherjacket, Blue Runner, Rainbow Runner and African Pompano.

See the exact hooks, baits and rigs for Black Jack in the Tackle & Bait Picker.