Crevalle Jack

The Crevalle Jack (Caranx hippos) is a large, powerfully built member of the jack family Carangidae, found in warm coastal waters on both sides of the Atlantic Ocean, including the eastern seaboard of the Americas, the Gulf of Mexico, the Caribbean, and the coast of West Africa. It is one of the most widely recognized jacks due to its steep forehead profile and characteristic dark spot on the gill cover. Crevalle Jack move readily between fully marine, coastal, and brackish estuarine waters. The species is common and widely distributed, supporting a notable recreational fishery, with populations generally stable across most of its range.

Crevalle Jack are robust, deep-bodied fish reaching 40-70 cm, identified by:

• A steep, almost vertical forehead profile
• Bright silver-gold body fading to a dark blue-green back
• A distinct black spot on the upper edge of the gill cover
• A second dark spot at the base of the pectoral fin
• Strongly forked, yellowish tail fin with sharp bony scutes along the tail base

The combination of the steep head profile and dual black spots reliably separates it from other similarly built jacks, which typically lack this specific spot pattern.

Crevalle Jack range widely through the warm coastal waters of the western and eastern Atlantic, from the northeastern United States through the Gulf of Mexico, Caribbean, and South American coasts, as well as along West Africa. They occupy a broad range of habitats, including open coastal waters, bays, harbors, and estuaries, and readily tolerate brackish conditions near river mouths. Juveniles are especially common in sheltered estuarine nurseries, while adults range more broadly into open coastal and nearshore pelagic waters. The species tolerates a wide temperature range but is most abundant in warm subtropical and tropical waters.

Crevalle Jack are aggressive, fast-swimming predators that often hunt in schools, using coordinated bursts of speed to corral and ambush schools of small baitfish near the surface, sometimes driving prey into shallow water or against the shoreline. They are active throughout the day and are known for powerful, sustained runs when pursuing prey or evading larger predators. Spawning occurs offshore in warm months, with young fish moving into estuarine nurseries to mature before joining adult populations along the coast. As active mid-level predators, Crevalle Jack play an important role in controlling baitfish populations within coastal ecosystems.