Snook

The Common Snook is a large, predatory fish in the family Centropomidae, native to warm coastal and estuarine waters of the western Atlantic, from Florida through the Caribbean and Gulf of Mexico to South America. It is closely associated with mangrove shorelines, tidal creeks, and inlets, and is one of the most sought-after inshore game fish in its range. Snook are highly sensitive to cold temperatures, restricting their range to subtropical and tropical latitudes, with occasional mass die-offs during severe cold snaps. The species is carefully managed through seasonal and size regulations in much of its range due to its vulnerability to overfishing and cold stress.

Snook have a sleek, elongated, laterally compressed body, silvery-gray to olive above with a bold, unmistakable black lateral stripe running the length of the body from gill cover to tail, a marking shared by no other common inshore species in its range.

• Distinctive sloped, concave head profile with a pointed snout and protruding lower jaw
• Large mouth and two separate dorsal fins, unusual among inshore species
• Yellowish tint on the pelvic and anal fins
• Prominent black lateral stripe, unlike any co-occurring look-alike species
• Typically 40-100 cm, with larger individuals exceeding 1.2 m

Snook inhabit warm coastal waters, estuaries, mangrove shorelines, tidal creeks, and passes throughout Florida, the Gulf of Mexico, the Caribbean, and south to Brazil, moving between brackish and marine environments depending on season and life stage. They are highly cold-sensitive, generally restricted to waters that stay above roughly 15-18°C, and often seek warm refuge in canals, springs, and deep holes during winter cold fronts. Juveniles favor low-salinity backwaters and mangrove-lined creeks, while adults range more broadly into higher-salinity estuaries, beaches, and passes.

Snook are ambush predators that hold near structure such as mangrove roots, docks, bridges, and current breaks, striking quickly at passing baitfish, shrimp, and crabs. They are known for powerful, sometimes acrobatic fights and strong site fidelity to favored ambush points. Snook spawn during warm months, typically near passes and inlets, where they gather in aggregations and release eggs into the current for offshore dispersal; larvae eventually settle into estuarine nursery habitats. Their reliance on mangrove and estuarine nursery habitat makes them highly sensitive to coastal habitat degradation and cold-weather mortality events.