How to recognise it
The Giant Trevally (Caranx ignobilis) is a large, powerful fish. It has a robust, oval body with a blunt head. The coloration is typically dark blue to greenish on the back, fading to silver on the sides and belly. Juveniles often display vertical bars. The dorsal fin is long and pointed, while the anal fin is shorter. The mouth is large, with sharp teeth. It is often confused with the Jack Crevalle (Caranx hippos). The key detail that separates them is the presence of a distinct black spot on the dorsal fin of the Giant Trevally.
Where it lives
The Giant Trevally is found in warm waters around the world. In the U.S., it is primarily located in the Pacific region, including Hawaii and the territories of American Samoa. They inhabit coastal areas, lagoons, and reefs. Depths range from 10 to 150 feet, but they can be found deeper in some locations. They prefer areas with structure, such as coral reefs and rocky outcrops. Seasonal changes can affect their location; during warmer months, they may move closer to shore, while in cooler months, they may venture into deeper waters.
When it bites
The best months for targeting Giant Trevally are typically from May to October. They bite most actively when water temperatures are between 75°F and 85°F. Early morning and late afternoon are prime times for fishing. A passing front can trigger feeding activity, while strong winds may make them less active. A full moon can also enhance their feeding behavior, as it increases visibility and stimulates prey movement.
How to catch it
To catch Giant Trevally, use heavy tackle. Recommended rigs include a conventional rod and reel setup with a minimum of 50-pound test braided line. Use a 6/0 to 10/0 circle hook. Effective baits include live or cut fish, such as mullet or mackerel, and lures like topwater poppers or jigs in bright colors like blue, green, or yellow. Cast near structures or drop-offs and retrieve quickly to mimic fleeing prey. Vary your retrieve speed to find what triggers a strike.
Size, age and the table
Anglers typically encounter Giant Trevally ranging from 10 to 30 pounds. A trophy fish is often considered to be over 50 pounds. They grow quickly, reaching maturity around 3 to 5 years of age, with a lifespan of up to 40 years. The flesh is firm and has a mild flavor, making it a popular choice for eating. When handling, use wet hands or gloves to protect their slime coat. If releasing, do so quickly to minimize stress and increase survival chances.
