Atlantic Spanish mackerel
Encyclopedia
The Atlantic Spanish mackerel, Scomberomorus maculatus, is a migratory species of mackerel
Mackerel
Mackerel is a common name applied to a number of different species of fish, mostly, but not exclusively, from the family Scombridae. They may be found in all tropical and temperate seas. Most live offshore in the oceanic environment but a few, like the Spanish mackerel , enter bays and can be...

 that swims
to the northern Gulf of Mexico
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

 in spring, returns to south Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 in the eastern gulf, and to Mexico
Mexico
The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

 in the western gulf in the fall.

Description

The fish exhibits a green back; its sides are silvery marked with about three rows of round to elliptical yellow spots. Lateral line gradually curving down from the upper end of the gill cover toward caudal peduncle. The first (spiny) dorsal fin is black at the front. Posterior membranes are white with a black edge. Its single row of cutting edged teeth in each jaw are large, uniform, closely spaced and flattened from side to side. As with the King mackerel
King mackerel
The king mackerel is a migratory species of mackerel of the western Atlantic Ocean and Gulf of Mexico. It is an important species to both the commercial and recreational fishing industries.-Description:...

 and the Cero mackerel
Cero mackerel
The Cero mackerel, Scomberomorus regalis, is similar in appearance and coloration to the Atlantic Spanish mackerel, Scomberomorus maculatus except that the Cero has a longitudinal stripe in addition to the spots of the Spanish....

, these teeth look very similar to those of the Bluefish
Bluefish
The bluefish , called tailor in Australia, is a species of popular marine gamefish found in all climates. It is the sole species of the Pomatomidae family....

, Pomatomus Saltatrix.

Distribution/habitat

Spanish mackerel occur seasonally from the Yucatán peninsula, Mexico
Yucatán Peninsula
The Yucatán Peninsula, in southeastern Mexico, separates the Caribbean Sea from the Gulf of Mexico, with the northern coastline on the Yucatán Channel...

, as far north as Cape Cod, Massachusetts. They are a shallow water species, preferring sand bottom in 10 to 40 foot (6 to 12 m) depths, occasionally found as deep as 80 feet (24 m).

They have also been caught in the Sea of Cortez near Punta Pescadores.

Migration patterns

It appears that one Atlantic
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about , it covers approximately 20% of the Earth's surface and about 26% of its water surface area...

 and one or more Gulf
Gulf of Mexico
The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

 groups of Spanish mackerel occur in Florida
Florida
Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

 waters. With rising water temperatures, the Atlantic group migrates along the Atlantic coast of the United States from Miami Florida
Miami, Florida
Miami is a city located on the Atlantic coast in southeastern Florida and the county seat of Miami-Dade County, the most populous county in Florida and the eighth-most populous county in the United States with a population of 2,500,625...

, beginning in late February through July reaching as far as southern Cape Cod, Massachusetts, then returning in fall. An Eastern Gulf group moves northward from the Florida Keys
Florida Keys
The Florida Keys are a coral archipelago in southeast United States. They begin at the southeastern tip of the Florida peninsula, about south of Miami, and extend in a gentle arc south-southwest and then westward to Key West, the westernmost of the inhabited islands, and on to the uninhabited Dry...

 during late winter and spring, appearing off the central West Coast of Florida about April 1. Movement continues westward and terminates along the northern Texas
Texas
Texas is the second largest U.S. state by both area and population, and the largest state by area in the contiguous United States.The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in...

 coast. During fall, this group migrates back to its wintering grounds in the Keys.

Life history

The Gulf group of Spanish mackerel spawn in batches from May to September off shore of Texas, off the Gulf shore of Florida as early as April in some years. The Atlantic group spawns starting in April off the Carolinas
The Carolinas
The Carolinas is a term used in the United States to refer collectively to the states of North and South Carolina. Together, the two states + have a population of 13,942,126. "Carolina" would be the fifth most populous state behind California, Texas, New York, and Florida...

 and from late August to late September in the northernmost part of its range. Spanish mackerel mature by age-1 and 14 inch (36 cm) fork length (FL). Females live longer and grow to larger sizes than males. Females may live as long as 11 years, growing to 11 pounds (5 kg) and 33 inches (83 cm) FL. Males reach about age-6 and 19 inches (48 cm) FL.

Feeding habits

Spanish mackerel are voracious, opportunistic, carnivore
Carnivore
A carnivore meaning 'meat eater' is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of animal tissue, whether through predation or scavenging...

s. As with other members of the genus, food consists mainly of small fishes with lesser quantities of shrimp
Shrimp
Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom. They can live in schools and can swim rapidly backwards. Shrimp are an important...

 and squid
Squid
Squid are cephalopods of the order Teuthida, which comprises around 300 species. Like all other cephalopods, squid have a distinct head, bilateral symmetry, a mantle, and arms. Squid, like cuttlefish, have eight arms arranged in pairs and two, usually longer, tentacles...

. Striped anchovies
Anchovy
Anchovies are a family of small, common salt-water forage fish. There are 144 species in 17 genera, found in the Atlantic, Indian, and Pacific Oceans. Anchovies are usually classified as an oily fish.-Description:...

 (Engraulidae) and clupeoids
Clupeidae
Clupeidae is the family of the herrings, shads, sardines, hilsa and menhadens. It includes many of the most important food fishes in the world.-Description and biology:...

 such as menhaden
Menhaden
Menhaden, also known as mossbunker, bunker and pogy, are forage fish of the genera Brevoortia and Ethmidium, two genera of marine fish in the family Clupeidae.-Description:...

, alewives
Alewife
The alewife is a species of herring. There are anadromous and landlocked forms. The landlocked form is also called a sawbelly or mooneye...

 and thread herring (Opisthonema), are particularly important forage in North Carolina
North Carolina
North Carolina is a state located in the southeastern United States. The state borders South Carolina and Georgia to the south, Tennessee to the west and Virginia to the north. North Carolina contains 100 counties. Its capital is Raleigh, and its largest city is Charlotte...

, Florida, Texas, and Veracruz
Veracruz
Veracruz, formally Veracruz de Ignacio de la Llave officially Estado Libre y Soberano de Veracruz de Ignacio de la Llave , is one of the 31 states that, along with the Federal District, comprise the 32 federative entities of Mexico. It is divided in 212 municipalities and its capital city is...

. The percentage of anchovies consumed is higher for juveniles than for adults.

Fishing gear and methods

Spanish mackerel are a highly valued fish throughout their range from North Carolina to Texas. Recreational anglers catch Spanish mackerel from boats while trolling
Troll (angling)
Trolling is a method of fishing where one or more fishing lines, baited with lures or bait fish, are drawn through the water. This may be behind a moving boat, or by slowly winding the line in when fishing from a static position, or even sweeping the line from side-to-side, e.g. when fishing from...

 or drifting and from boats, piers, jetties, and beaches by casting spoons and jigs and live-bait fishing
Fishing
Fishing is the activity of trying to catch wild fish. Fish are normally caught in the wild. Techniques for catching fish include hand gathering, spearing, netting, angling and trapping....

. Fast lure retrieves are key to catching these quick fish. Commercial methods are primarily run-around gill netting, and rarely, by trolling lures similar to those used by recreational anglers.

Management

Spanish mackerel are managed in commercial and recreation fisheries with bag limits, size limits, commercial trip limits, and with only seasonal fishing allowed. The management of mackerel has been considered a success because the population used to be in decline, but is now on the rise without overfishing occurring.

Nutrition and processing

Spanish mackerel are primarily marketed fresh or frozen as fillets as commercially caught fish are too small to sell in the form of steaks. Their raw flesh is white. They may be prepared by broiling, frying
Frying
Frying is the cooking of food in oil or another fat, a technique that originated in ancient Egypt around 2500 BC. Chemically, oils and fats are the same, differing only in melting point, but the distinction is only made when needed. In commerce, many fats are called oils by custom, e.g...

, baking
Baking
Baking is the technique of prolonged cooking of food by dry heat acting by convection, and not by radiation, normally in an oven, but also in hot ashes, or on hot stones. It is primarily used for the preparation of bread, cakes, pastries and pies, tarts, quiches, cookies and crackers. Such items...

 or, rarely, by smoking.

The Spanish mackerel is also a popular fish among devotees of sushi
Sushi
is a Japanese food consisting of cooked vinegared rice combined with other ingredients . Neta and forms of sushi presentation vary, but the ingredient which all sushi have in common is shari...

 who prize it for its flavor.

Similar species

Spanish mackerel are similar in appearance to small King mackerel
King mackerel
The king mackerel is a migratory species of mackerel of the western Atlantic Ocean and Gulf of Mexico. It is an important species to both the commercial and recreational fishing industries.-Description:...

 (Scomberomorus cavalla) and Cero mackerel (Scomberomorus regalis). All three are very similar in shape and coloration. They may be distinguished as follows:

The lateral line on Spanish and Cero mackerel slopes gradually from the top edge of the gill to the tail. In contrast that of the king mackerel takes an abrupt drop at mid-body.

The first (spiny) dorsal on Spanish and Cero mackerel has a prominent black patch. The King mackerel has none. As all three species normally keep the first dorsal folded back in a body groove, this difference is not immediately evident.

Spanish mackerel have prominent yellow spots on the flanks at all sizes. In addition to such spots, Cero mackerel have one or more yellow stripes along the centerline. Young King mackerel have similar, but slightly smaller spots; these fade away on individuals weighing over 10 pounds (4.5 kg), but they may still be seen as spots of slightly darker green on the upper back from some angles of view.

World wide there are many members of this genus quite similar to one or another of these three species. In particular, off Mexico, Atlantic Spanish mackerel may be confused with Serra Spanish mackerel
Serra Spanish mackerel
The ', Scomberomorus brasiliensis, is a species of fish in the family Scombridae. Specimens have been recorded at up to 125 cm in length, and weighing up to 6,710 g. It is found in the western Atlantic, along the Caribbean and Atlantic coasts of Central and South America from Belize to Rio Grande...

 (Scomberomorus brasiliensis) which may appear in the same area.
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