Groupers belong to one of the largest and most widely distributed families of fish, the sea basses. Red grouper (Epinephelus morio) is the most frequently seen grouper in the marketplace and is valued for its availability, flavor and size. Because of limited commercial supplies of the true black grouper (Mycteroperca spp.), it has largely been replaced by the gag (M. micro-lepis), which offers similar edibility and value. Some processors call gag “the grouper of choice,” since it offers better yield and firmer meat. It is referred to in the market as black grouper. Market size for black grouper is around 20 pounds, and red grouper is marketed at anywhere from 5 to 15 pounds. Groupers are found in temperate waters from the Mid-Atlantic states and Florida to South America, Central America and the Gulf of Mexico. Groupers are typically caught by hook and line.