Fish identification archive / Horse-eye Jack

Horse-eye Jack

Caranx latus

Fun facts for your next surface interval

Armored trim: Its rear lateral line is armored with roughly 32–39 scutes.
Baby's first stripes: Young horse-eye jacks can wear dark bars that adults largely lose.
Beyond the saltwater: The documented habitat includes brackish water and even freshwater entry.

Florida and local context

Broader Florida; no verified Lake Worth Lagoon checklist claim: FWC documents this as a native Florida saltwater fish.

Documented regional presence is not a guarantee of an encounter or a measure of how common this animal is at your dive site.

How to recognize this animal

The unusually large eye is a useful starting point, but check the rest of the fish. Adults have a blue-gray back, silver to golden underside, yellow forked tail and a dark leading lobe on the second dorsal fin. The straight rear portion of the lateral line carries a conspicuous series of hard scutes that may look black.

Size and life stages

Smithsonian records a maximum length of 101 centimeters, weight of 13.4 kilograms and age to 13 years. These are compiled extremes rather than a typical school member. Juveniles may show about five dark body bars. Their changing pattern means that the adult's bright yellow tail and plain-looking flanks should not be the only identification criteria.

Habitat and where to look

This jack uses reefs, soft bottoms and seagrass areas, and can enter brackish water or freshwater. Its recorded depth interval spans the surface to 151 meters. For divers, the useful search area is often the water around structure rather than a crevice. Keep an eye on the broader scene without drifting away from the planned route.

Range and local context

The species occurs on both sides of the Atlantic; the western range extends from New Jersey to central Brazil. FWC identifies it among Florida native saltwater fishes. The Lake Worth Lagoon checklist does not mark this species as verified; this profile therefore claims broader Florida presence, not a confirmed local checklist sighting or local abundance.

What is on the menu?

The species account lists fish, mobile crustaceans, mollusks and zooplankton among its foods. The upper jaw has strong outer canines and an inner band of finer teeth, while the lower jaw has a single tooth row. It is an animal feeder; seeing it over seagrass does not make it an herbivore or establish the prey being pursued.

Daily habits and behavior

Long pectoral fins, taller front dorsal and anal lobes, and a narrow tail base create a powerful swimming outline. FWC describes schooling, often associated with offshore reefs. A school is an opportunity to compare several individuals, especially eye size and tail color, but its presence should not be described as a spawning aggregation without direct behavioral evidence.

Mating and the next generation

Eggs and larvae are pelagic according to Smithsonian's compiled species data. Reef-associated adults therefore do not imply a brood attached to the reef. No Palm Beach spawning season was verified for this profile. An aggregation, chase or sudden change of direction can be recorded as an observation without assigning a reproductive purpose.

Look-alikes and identification traps

Crevalle jack usually show a more conspicuous dark pectoral marking and a different head profile; yellow jack lack the same combination of very large eye and dark rear scutes. Bar jack have a strong dark stripe along the back and into the lower tail lobe. Compare structural details, because underwater lighting can wash yellow tails almost white.

Observe without disturbing

Let a passing school choose its distance and do not swim through it for an immersive photograph. Stay aware of the buddy, boat traffic and current when looking into open water. A side view showing the eye, dorsal lobe and rear lateral line is more useful than a close image of a single reflective flank.

Harvest, protection and eating safety

Harvest conditional; ciguatera risk

Florida state-water harvest is conditional; no species-specific annual state closed months are listed. Check federal and site rules before taking fish. This species is specifically associated with ciguatera, which cooking or freezing does not remove. Appearance does not establish food safety; see the full area and health guidance.

This color is a qualified summary, not permission to collect or a guarantee that a particular catch is safe to eat. Read the current rules and health guidance below.

Recreational harvest is conditional; species, area, gear and food-safety checks required

Can it be hunted or harvested?

In Florida Atlantic and Gulf state waters, this species falls under the general recreational rules unless an area-specific rule below is stricter. The default daily bag is two fish or 100 pounds per person, whichever is greater, not unlimited harvest. No species-specific statewide size limit is listed for this category. The cited default is a daily bag, not an additional off-water possession allowance. A saltwater fishing license is required unless exempt, including for Florida landings from federal waters; a shoreline-only license does not cover taking fish while swimming or diving. Legal general gear includes hook and line, spears, gigs, haul seines and cast nets subject to location restrictions. Recreational rules do not authorize commercial sale.

Florida seasons and areas

No species-specific annual closed months are listed in the cited Florida general category. This is not a blanket year-round permission: state rules do not by themselves establish the rules for every Gulf or South Atlantic federal trip. Confirm the federal management area and any protected-zone conditions before taking or landing fish. The designated Western Dry Rocks area closes to all fishing April 1–July 31. In Biscayne National Park, the designated bonefish pre-spawning area closes to fishing and fish possession March 1–May 31; continuous transit with fish and gear properly stowed is allowed. Sanctuary, park and refuge zones may impose additional no-take or gear restrictions. These are area rules, not a claim that every Florida site is closed.

Can it be speared?

Spearing is allowed for this species only where the location and other rules permit it. No powerheads, bangsticks or rebreathers. No spearfishing in freshwater; within 100 yards of public swimming beaches, commercial/public fishing piers or bridges open to public fishing; or within 100 feet of an above-water jetty except the last 500 yards of a jetty longer than 1,500 yards from shore. It is prohibited from Long Key north to the Miami-Dade line in Monroe County, in state-park waters and in Volusia inland waters for this species. Check additional federal protected-area rules.

Is it safe to eat?

Horse-eye jack is explicitly listed by FDA among fish associated with ciguatera. A normal appearance does not clear a catch, and cooking or freezing does not remove ciguatoxins. This identification page cannot establish that a particular catch is safe to eat. Consult current Florida DOH advice for the exact species and capture water, especially for pregnancy, breastfeeding and children. Do not borrow an advisory for a similarly named fish. Prompt chilling and proper cooking reduce some hazards, but cooking does not remove mercury or all marine toxins; absence of a named advisory is not a safety clearance.

Before you act: This recreational overview is not permission to collect or spear at your dive site. Confirm the species, date, management area, state or federal waters, gear, licenses and current local closures. Identification artwork cannot establish an identification or guarantee seafood safety.

Official rules and health guidance

Reviewed 2026-11-10. Rules and advisories can change; check the linked authorities before harvesting or eating.

Sources and review

Reviewed 2026-11-10.

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