Also known as
- Gag US
- Velvet Rockfish US
- Grass Grouper US
- Gray Grouper US
- Gagger US
Identification
A Gulf and SE US reef predator that hunts open ledges and offshore structure rather than burying in caves. Less structure-bound than black grouper but still pulls hard for cover.
- Dark grey to brownish-grey body with indistinct darker blotches in worm-like patterns
- Wavy blue-grey markings on head and lower body
- Squared-off tail with straight or slightly convex trailing edge
- Large mouth with protruding lower jaw
Where it holds
- Rocky Reefs
- Coral Reefs
Behaviour
A reef predator holding on rocky ledges, offshore reefs, and wrecks in 20-100m. Strikes baitfish and crustaceans with explosive acceleration from open structure rather than caves. Adults form loose groups; juveniles use shallower seagrass beds and oyster bars before moving offshore. Protogynous — biggest specimens are always male. Peak activity 20-24°C (68-75°F); pulls into deeper offshore structure when water cools below 18°C (64°F). Spawning aggregations form in cooler-month deep water.
Diet: Pinfish, Threadfin Herring, Cigar Minnows, Blue Runners, Small Reef Fish, Shrimp, Crabs, Squid
How it's caught
Line Fishing
Bottom Fishing
The dominant Gulf and SE US gag method. Live pinfish, grunts, cigar minnows, or threadfin herring on a knocker rig with 6/0-9/0 circle hook, dropped to ledges, live-bottom, and offshore reefs in 20-80m. Fresh cut bonito or squid equally productive. Heavy drag and instant pressure mandatory.
Live Lining
Highly productive when fish push onto shallower reef edges and live-bottom in 15-40m. Free-line a 15-25cm live threadfin herring, cigar minnow, or blue runner on a 6/0-9/0 circle hook with minimal weight, tight to structure. Effective when fish hold above bottom in the water column.
Jigging
Highly productive over rocky ledges, live-bottom, and reefs in 20-60m. Drop 100-300g speed jigs and bucktail jigs to bottom and work with aggressive sweeps and controlled drops; gag strike on the lift and chase jigs up off bottom. Speed-jigging locates active fish across scattered structure.
Spinning
Effective on shallower 5-20m structure, seagrass edges, and oyster bars where gag move inshore. Cast 30-60g paddle-tail swimbaits or soft plastics on heavy jig heads, or popping corks suspending a live pinfish tight to ledges. Most productive in nearshore reef and bay environments.
Spear Fishing
Inshore Spearfishing
A productive Gulf and SE US Atlantic reef-spearo target on rocky ledges, live-bottom, and reefs in 15-30m. Less cave-oriented than black grouper — often holds in the open on ledges. Curious but spooks under pressure; a slow methodical stalk produces shots. Float-line setup; medium-heavy speargun.
