The Paciﬁc sierra mackerel is an abundant fish in the Pacific along the coasts of Mexico and Central America. A member of the Scombridae family of mackerel and not to be confused with the Atlantic sierra (Scomberomorus brasiliensis), which occurs only in the Atlantic, the Pacific sierra mackerel is an eastern Pacific fish that is excellent to eat.
It is marketed fresh and frozen. It resembles the Spanish mackerel in appearance, and the all-tackle world record is an Ecuadorian ﬁsh of 18 pounds caught in 1990.
Pacific sierra mackerel extend from La Jolla in Southern California south to the Galápagos Islands and to Paita, Peru. They have recently been reported from Antofagasta, Chile. A schooling species, Pacific sierra mackerel are found in surface coastal waters and over the bottom of the continental shelf. Thought to spawn close to the coast, they feed on small fish, especially anchovies.