Almaco Jack
Scientific Name: Seriola rivoliana | Category: saltwater
The almaco jack is a quintessential member of the Carangidae family, built for speed and power. It presents a deep, elongated body that’s more laterally compressed and robust than its cousin the yellowtail amberjack, with a distinct ‘shoulder’ behind the head. Its coloration is striking: a dark olive-brown to nearly blackish back that dramatically fades to a silver-white belly, often bisected by a subtle amber or brassy mid-lateral stripe. Anglers will note its longer, sickle-shaped anal fin and a steeply sloping forehead, giving it a more predatory profile. They are formidable opponents, typically encountered in the 15- to 40-pound range, with true brutes pushing past 80 pounds in remote offshore haunts. You'll find almaco jack patrolling deepwater structures across a remarkably broad global range. In the Atlantic, they thrive from the Carolinas down through the Gulf of Mexico and the Caribbean, with legendary populations around offshore oil rigs and seamounts. Their Pacific domain stretches from Southern California to Peru, with prolific numbers around the Revillagigedo Islands and Costa Rica’s offshore seamounts. This is a pelagic species of the blue water, almost exclusively associated with steep drop-offs, floating debris, and submerged pinnacles rising from the abyss—think 200 to 500 feet down, where upwellings concentrate bait. Serious anglers target the 'highfin' for its sheer, bulldog tenacity. Hooking one is an immediate declaration of war; they dive with relentless, head-shaking power straight back to the structure, testing both gear and angler's resolve. Their fight is less about acrobatics and more about raw, grinding power, making them a premier light-tackle or stand-up gamefish. While their eating quality is decent, it’s the challenge and the potential for a truly massive specimen—a recognized IGFA world record quarry—that fuels the pilgrimage. Catching a large almaco is a badge of honor, a testament to skill in targeting deep, structured water where few casual anglers venture.
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"commonName": "Almaco Jack",
"scientificName": "Seriola rivoliana",
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"category": "saltwater",
"aliases": [
"Longfin Yellowtail",
"Highfin Jack",
"Almaco",
"Crevalle Jack",
"Kahala (in Hawaii)",
"Ribaldo (in some Spanish regions)"
],
"description": "The almaco jack is a quintessential member of the Carangidae family, built for speed and power. It presents a deep, elongated body that’s more laterally compressed and robust than its cousin the yellowtail amberjack, with a distinct ‘shoulder’ behind the head. Its coloration is striking: a dark olive-brown to nearly blackish back that dramatically fades to a silver-white belly, often bisected by a subtle amber or brassy mid-lateral stripe. Anglers will note its longer, sickle-shaped anal fin and a steeply sloping forehead, giving it a more predatory profile. They are formidable opponents, typically encountered in the 15- to 40-pound range, with true brutes pushing past 80 pounds in remote offshore haunts.\n\nYou'll find almaco jack patrolling deepwater structures across a remarkably broad global range. In the Atlantic, they thrive from the Carolinas down through the Gulf of Mexico and the Caribbean, with legendary populations around offshore oil rigs and seamounts. Their Pacific domain stretches from Southern California to Peru, with prolific numbers around the Revillagigedo Islands and Costa Rica’s offshore seamounts. This is a pelagic species of the blue water, almost exclusively associated with steep drop-offs, floating debris, and submerged pinnacles rising from the abyss—think 200 to 500 feet down, where upwellings concentrate bait.\n\nSerious anglers target the 'highfin' for its sheer, bulldog tenacity. Hooking one is an immediate declaration of war; they dive with relentless, head-shaking power straight back to the structure, testing both gear and angler's resolve. Their fight is less about acrobatics and more about raw, grinding power, making them a premier light-tackle or stand-up gamefish. While their eating quality is decent, it’s the challenge and the potential for a truly massive specimen—a recognized IGFA world record quarry—that fuels the pilgrimage. Catching a large almaco is a badge of honor, a testament to skill in targeting deep, structured water where few casual anglers venture.",
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"description": "The almaco jack is a powerful, pelagic predator patrolling deep offshore structures. In this phase, it hunts baitfish in the blue water, using its speed and strength to dominate its environment. Anglers encounter this formidable gamefish as it defends its territory around seamounts and drop-offs.",
"appearance": "Deep, elongated body with a robust, laterally compressed shape and a distinct 'shoulder' behind the head. Coloration is a striking dark olive-brown to nearly blackish back that fades dramatically to a silver-white belly, often with a subtle amber or brassy mid-lateral stripe. Features a steeply sloping forehead, a sickle-shaped anal fin, and a predatory profile. Size ranges typically from 15 to 40 pounds, with larger specimens exceeding 80 pounds.",
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"habitat": "Deep offshore waters, typically 200 to 500 feet down, associated with steep drop-offs, floating debris, submerged pinnacles, seamounts, and offshore oil rigs in both the Atlantic (e.g., Gulf of Mexico, Caribbean) and Pacific (e.g., Southern California to Peru, Revillagigedo Islands).",
"anglersNote": "This is the primary trophy phase for anglers, prized for its raw, bulldog-like fight and potential for record-sized catches in remote offshore locations.",
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"contentUpdatedAt": "2026-05-09T22:31:45.609Z"
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