Horse-eye Jack
The horse-eye jack is a hard-running coastal predator found along Brazil's northeastern and southeastern coastline, from estuaries and river mouths all the way out to offshore reefs and oil platforms.
Juveniles push into brackish water and even rivers, but adults work the nearshore marine zone. Light-tackle and fly anglers both target them, and they're a legitimate sport fish wherever they show up in numbers.
Scientific Name: Caranx latus
Also known as xaréu-de-olho-grande, big-eye jack
- Silver-blue above, silvery-white to golden below; yellow caudal fin and a black lobe on the first dorsal fin are the quickest field marks.
- Large, prominent eyes with a well-developed fatty eyelid — the feature that gives the fish its name and separates it from the crevalle jack at a glance.
- No dark spot at the base of the pectoral fin (crevalle jack has one); may show a faint dark smudge at the corner of the gill cover.
- Common fish run around 60 cm and 4–5 kg; the species tops out near 101 cm and 13.4 kg, with the IGFA all-tackle record just over 14 kg.
What to know
Habitat Distribution
- Native to Brazil; the western Atlantic range runs from the U.S. East Coast south to roughly São Paulo, covering the entire Brazilian coastline.
- Juveniles use estuaries, river mouths, and brackish zones — research in northeastern Brazil confirms these habitats are critical nursery areas.
- Adults prefer open coastal and nearshore marine waters, typically within the continental shelf, from the surface down to about 140 m but most active in the top 20 m.
- Gravitates toward structure: coral and rocky reefs, offshore oil platforms, buoys, and seagrass flats.
Key Locations
- Northeastern Brazil coastline — estuaries and reef systems from Natal south through João Pessoa are documented habitat, with research confirming estuary use by juveniles.
- Offshore oil platforms along the Brazilian continental shelf concentrate adults around structure year-round.
- Coastal reefs and rocky outcrops throughout the southeastern coast down toward São Paulo mark the southern edge of the species' consistent range in Brazil.
Specific Spots
- Current edges around reef structure concentrate baitfish and draw feeding schools of horse-eye jacks — work the upcurrent face first.
- Oil platforms and navigation buoys act as artificial reefs; fish the shadow line and any current break around the base.
- Estuary mouths and river outflows, especially where freshwater meets salt — juveniles and sub-adults stage here, and adults push in to feed on baitfish flushed by tidal flow.
- Seagrass flats adjacent to deeper water give the fish a feeding shelf; they cruise the edges rather than holding in the thick grass.
Horse-eye Jack FAQ
Answers from onWater's species guide.
What are the best lures and bait for Horse-eye Jack?
Metal jigs and chrome spoons are the go-to for schooling fish, cast past the school and retrieve fast enough to stay near the surface; vertical jigging works when fish are holding deeper around structure.
What flies work for Horse-eye Jack?
Clouser Minnows (which imitate baitfish) in white-and-chartreuse or white-and-blue are the most versatile choice, the weighted eyes get the fly down and give it a jigging action on the strip.
When is the best time to fish for Horse-eye Jack?
Near the equator in northeastern Brazil, fish are catchable throughout the year with no hard off-season. Activity slows in cooler months farther south along the Brazilian coast as water temperatures drop; the warmer months (roughly October through April in the southern hemisphere) tend to produce the most consistent...
How do you catch Horse-eye Jack?
Most anglers in Brazil target horse-eye jacks from boats, working reef structure, oil platforms, and estuary mouths with jigs, spoons, or live bait. Shore fishing from jetties and rocky points near estuary entrances also produces fish, particularly at dawn and dusk when schools push bait against structure.
What do Horse-eye Jack eat?
Small fish, anchovies, sardines, and juvenile jacks, make up the bulk of the diet. Match this with slender silver lures: spoons, metal jigs, or Clouser Minnow-style flies that imitate baitfish. Shrimp and crabs round out the menu, especially near reef structure.
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