Yellowfin Tuna

{
  "id": "f24f2ac1-b51d-49bf-9a5a-d17d4739f77b",
  "commonName": "Yellowfin Tuna",
  "scientificName": "Thunnus albacares",
  "slug": "yellowfin-tuna",
  "category": "saltwater",
  "aliases": [
    "yellowfin",
    "ahi",
    "Allison's Tuna",
    "Ahi",
    "Longfin",
    "Yellowfinned Albacore",
    "Great Albacore"
  ],
  "description": "The yellowfin tuna is a magnificent embodiment of oceanic power, a streamlined torpedo of muscle clad in metallic armor. It presents a classic tuna profile: a bullet-shaped body with a deeply forked tail and a series of small finlets trailing the dorsal and anal fins. Adults are substantial, commonly reaching 100 to 200 pounds, with true giants exceeding 400 pounds in prime equatorial waters. Its name is derived from the brilliant, elongated yellow finlets and dorsal and anal fins that blaze against a background of dark blue back and shimmering silver sides and belly. A key distinguishing feature for anglers is the long, sickle-shaped second dorsal and anal fins, which can grow extraordinarily long in larger specimens, often giving the fish a \"longfin\" appearance when brought alongside the boat.",
  "imageUrl": "https://media.meridiaoutdoors.com/media/species/yellowfin-tuna/main.webp",
  "hero": {
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    "altText": "Yellowfin Tuna (Thunnus albacares) watercolor",
    "caption": "The yellowfin tuna is a magnificent embodiment of oceanic power, a streamlined torpedo of muscle clad in metallic armor.",
    "width": 2400,
    "height": 1340
  },
  "phases": [
    {
      "id": "4fe1ce74-b3e4-4a1b-a829-5d439923f4c4",
      "name": "Juvenile",
      "slug": "juvenile",
      "description": "Young yellowfin tuna live a schooled life in offshore surface waters, often associating with flotsam, drifting debris, or other larger pelagic species as a survival tactic against predators. This stage is focused on rapid growth, feeding aggressively on small baitfish, squid, and crustaceans in the open ocean nursery.",
      "appearance": "Smaller, compact body typically under 10-20 pounds. Coloration is less vivid than adults: back is a metallic dark blue-green, fading to silvery-white on the belly. The namesake yellow finlets, dorsal, and anal fins are present but often a pale, yellowish-gray, not yet the brilliant lemon-yellow. The distinctive long, sickle-shaped second dorsal and anal fins are proportionally much shorter in juveniles. May display a pattern of faint vertical bars or spots along the sides, which fade with age.",
      "triggers": null,
      "habitat": "Warm surface waters of the open ocean, often near floating objects, weed lines, or temperature breaks.",
      "anglersNote": "Occasionally caught by anglers targeting other pelagic species; these smaller fish are often released to grow into future trophies.",
      "displayOrder": 0,
      "imageUrl": null,
      "media": null
    },
    {
      "id": "1bbc3777-f6d7-4d02-8a04-be8ad27e95b2",
      "name": "Ocean Adult",
      "slug": "ocean-adult",
      "description": "The fully mature yellowfin is a dominant apex predator of the warm pelagic zone. These powerful swimmers form structured schools, often by size, and undertake deep dives into the thermocline to hunt large prey. This is the prime, trophy life stage pursued by sport fishermen across the globe.",
      "appearance": "Large, powerfully built, and streamlined, commonly 100-200 lbs, with giants over 400 lbs. The back is a deep metallic blue, sometimes appearing almost black, sharply demarcated from the bright silver sides and white belly. The defining feature is the intense, luminous yellow of the finlets, second dorsal fin, and anal fin. These 'longfin' extensions, especially the sickle-shaped second dorsal and anal fins, become dramatically elongated in larger specimens, often reaching past the tail base. The pectoral fins are also long and tipped with yellow. The body is unmarked, lacking stripes or spots.",
      "triggers": "Reaching sexual maturity, typically around 3-5 years of age and a size of 30-40 inches.",
      "habitat": "Deep, warm offshore waters worldwide, from the surface down to several hundred meters, often associated with temperature breaks, seamounts, and concentrations of bait.",
      "anglersNote": "This is the primary target for big-game anglers. Prized for their power, speed, and table quality, they are a cornerstone of offshore sport fishing.",
      "displayOrder": 1,
      "imageUrl": null,
      "media": null
    }
  ],
  "contentUpdatedAt": "2026-05-09T22:30:20.395Z"
}

[]

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  "title": null,
  "description": "Yellowfin tuna are powerful offshore predators reaching over 400 lbs. Learn about their long yellow fins, speed, and where to find these trophy game fish.",
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