The scup, Stenotomus chrysops, is a fish which occurs primarily in the Atlantic from Massachusetts to South Carolina. Along with many other fish of the family Sparidae, it is also commonly known as porgy.
Scup grow as large as 18 in (450 mm) and weigh 3 to 4 lb (2 kg), but they average 0.5–1.0 lb (0.25–0.50 kg).
According to Lou at Hillyer's Tackle Shop, the classification for a "hubcap" porgy is a fish of at least 15 inches in length. There are absolutely no exceptions to this rule.
In the Middle Atlantic Bight, scup spawn along the inner continental shelf. Their larvae end up in inshore waters, along the coast and in estuarine areas. At two to three years of age, they mature. Scup winter along the mid and outer continental shelf. When the temperature warms in the spring, they migrate inshore.
They are fished for by both commercial and recreational fishermen. The scup fishery is one of the oldest in the United States, with records dating back to 1800. Scup was the most abundant fish in Colonial Times, landing the name "porgy," which was the American Indian for "fertilizer."  In 1929, fishermen began using trawls in 1929, which increased catches dramatically. The species was termed overfished in 1996, and today there is evidence of a rebound. Today, scup are still caught primarily using an otter trawl. 
Many consumers like their light flavor and they are sometimes called panfish. Popular methods of cooking include but are not limited to frying, broiling, and baking.
Scup are heavily fished commercially and recreationally. Management measures for the species generally include size limits, bag limits, fishing seasons, and equipment requirements. Scup are also managed through quotas that are separately regulated during the different seasons.
- "Stenotomus chrysops". Integrated Taxonomic Information System. Retrieved 19 March 2006.
- Froese, Rainer and Pauly, Daniel, eds. (2006). "Stenotomus chrysops" in FishBase. January 2006 version.
- Scup, Stenotomus chrysops, Life History and Habitat Characteristics
- Scup NOAA FishWatch. Retrieved 5 November 2012.