Knobbed Porgy
Identification
Knobbed Porgy (Calamus proridens) are a medium-to-large porgy species, typically 14 to 18 inches and 1 to 3 pounds. They are named for the distinctive bony knob or bulge on the forehead just above the eyes, which becomes more pronounced with age. The body is silvery with a brassy or golden cast and often shows faint vertical bars. They share the deep, compressed body shape and strong molar-like teeth of other Calamus species. The head knob distinguishes them from whitebone and jolthead porgy at a glance, though all three share similar habitat.
Habitat and Behavior
Knobbed porgy inhabit hard-bottom reef areas, rocky ledges, wrecks, and live bottom structure in 60 to 160 feet of water off the Outer Banks. They prefer areas with substantial relief — ledges and large wrecks tend to hold more knobbed porgy than flat hard bottom. They are shellfish crushers, feeding on crabs, shrimp, sea urchins, snails, and small bivalves. Knobbed porgy school with other porgy species and are frequently caught alongside red porgy, triggerfish, and sea bass on OBX reef drops.
Fishing Techniques
The standard two-hook bottom rig with a 3- to 6-ounce sinker is the primary setup. Hooks in size 1/0 to 2/0 suit the knobbed porgy’s medium-sized mouth. Circle hooks are preferred for conservation and ease of use. Drift fishing over hard-bottom structure covers more water and helps locate concentrations. When a school is found, anchoring or holding position over the spot can produce multiple fish. Lighter fluorocarbon leaders (25–35 lb) can help in clear water conditions.
Baits and Lures
Squid strips are the standard and effective bait. Shrimp and small crab pieces are particularly appealing to knobbed porgy given their shellfish-heavy diet. Cut bait strips (mullet or menhaden) work as well. Secure bait firmly on the hook — porgy are expert bait thieves and will strip an unsecured rig quickly. Small jigs tipped with squid can be effective for larger, more aggressive fish, especially when worked vertically near the bottom.
Best Times and Locations on the OBX
Knobbed porgy are caught from May through October, with the best action in July through September when water temperatures peak on the mid-shelf reefs. Target areas include the hard-bottom zones off Oregon Inlet in 80–140 feet, the ledges and wrecks off Hatteras, and the artificial reef network along the central OBX coast. Full-day charter and party boat trips that run to the deeper reef zones are the most reliable way to find knobbed porgy in good numbers.
Regulations
Knobbed porgy fall under the NC aggregate porgy regulation — typically 10 fish per person per day, 10-inch minimum size. Regulations for snapper-grouper complex species change periodically. Always confirm current rules with NC DMF and SAFMC before heading out.