Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Siluriformes
- Family
- Sparidae
- Genus
- Calamus
- Species
- nodosus
Habitat
Knobbed porgies inhabit continental shelf waters of the western Atlantic, from North Carolina to Brazil, favoring rocky bottoms, coral reefs, and hard structures. They are commonly found at depths of 10 to 100 meters in warmer waters with moderate currents.
Diet
Knobbed porgies primarily feed on crustaceans like crabs and shrimp, mollusks such as clams, and small fish. They forage during the day by picking at the substrate on reefs and hard bottoms. Feeding activity peaks in the morning and late afternoon.
Behavior
Knobbed porgies are schooling fish that form loose groups over reefs and hard structures. They are diurnal, active during the day for feeding and resting at night, and exhibit cautious behavior around potential threats. They can be territorial around feeding sites but generally migrate seasonally with water temperatures.
Fishing
Anglers targeting knobbed porgy, a popular sport fish in the Western Atlantic and Gulf of Mexico, should focus on bottom fishing techniques using light to medium tackle to effectively handle their strong runs near reefs and hard structures. Use a 7-foot medium-action rod with 10-20 pound test line, a 6-8 foot leader, and size 1-2 hooks baited with shrimp, crabs, or small fish pieces to imitate their primary diet of crustaceans and mollusks; artificial lures like jigs or soft plastics can also work well for a more active approach. The best season is summer during their spawning period in warmer waters, with optimal times being early morning or late afternoon when feeding activity peaks; target depths of 10 to 100 meters over rocky bottoms, coral reefs, and hard structures in hotspots like the Florida Keys, Pensacola, or Campeche Bank. The IGFA all-tackle world record is 5 pounds 12 ounces, caught in 1986, showcasing the potential for trophy catches. As a cornerstone of conservation, recreational fishing for knobbed porgy supports stable populations—rated Least Concern by IUCN—through angler-funded programs that promote habitat protection and sustainable practices, such as slot limits and catch-and-release guidelines in certain regions, ensuring these fish thrive for future generations.
Conservation Status
Listed as Least Concern by IUCN.