The White Marlin occurs throughout the Atlantic Ocean. Though this pelagic and migratory species is usually found in deep blue tropical and warm, temperate waters, it frequently comes in close to shore where waters aren't much deeper than 8 fathoms. Its most characteristic feature is the rounded, rather than pointed, tips of the pectoral fins, first dorsal fin and first anal fin. The first dorsal fin resembles that of the Striped Marlin in that it is usually as high as or higher than the greatest body depth. It differs from that of the Striped Marlin, or any other Marlin, in that both margins are convex. The flat, movable pectoral fins can easily be folded flush against the sides of the body. The lateral line is visible and straight. In overall appearance the white marlin is generally lighter in colour and tends to show greener than other Marlins. Several light-blue or lavender vertical bars may show on the flanks, especially when the fish is feeding or leaping. Some specimens have a scattering of black or purple spots on the first dorsal and anal fins.

Found in warm temperature waters of the Atlantic, Pacific and Indian Oceans, this schooling, pelagic, seasonally migratory species is suspected of making rather extensive migrations. The pectoral fins may reach the second dorsal fin. The second dorsal and anal fins never reach back as far as those large yellow fin tuna. It has a total of 23-31 gill rakers on the first arch. The margin of the liver is striated. The two dorsal fins are close-set, the first first having 13-14 spines and the second 14-16 rays. The anal fin has 11-15 rays. On either side of the caudal peduncle there is a strong lateral keel between two small keels that are located slightly farther back on the tail. The scales are small except on the anterior corselet. The vent is oval or teardrp shaped, not round as the albacore. The first dorsal fin is deep yellow. The second dorsal fin and the anal fin are blackish brown or yellow and may be edged with black. Its diet includes squid, crustaceans, mullet, sardines, mackerels and some deep-water species.

Found worldwide in tropical and warm temperate seas. Pelagic and migratory. Usually remains in clear blue tropical or warm waters but makes seasonal migrations into colder zones. The most distinguishing feature of this member of the tuna and mackerel family is its very long pectoral fins that reach to a point beyond the anal fin. The deepest part of the albacore's body is near the second dorsal fin, rather than near the middle of the first dorsal fin as in other tunas, and the vent is round rather than oval or teardrop shaped. The fins are dark yellowish, except for the white trailing edge of the tail. The anal finlets are black. They feed on mullet, sardines, squids, herrings, anchovies and other small fishes.

Occurs worldwide in deep, warm temperate oceanic waters. It is both pelagic and seasonally migratory, but has been known to come fairly close to shore. Most large yellowfins have overextended second dorsal and anal fins that may reach more than halfway back to the tail base in some large specimens. The pectoral fins in adults reach to the origin of the second dorsal fin, but never beyond the second dorsal fin. This is probably the most colorful of all tunas. The back is blue-black, fading to silver on the lower flanks and belly. A golden yellow or iridescent blue stripe runs from the eye of the tail. All the fins and finlets are golden yellow. The diet depends largely on local abundance and includes flying fish, other small fish, squid and crustaceans.

Frequent in tropical and subtropical seas usually in coastal and oceanic waters. It is common throughout the tropical Atlantic. Skipjack tuna are schooling, pelagic, migratory, deep-water species. The presence of stripes on the belly and the absence of markings on the back are sufficient to distinguish the skipjack tuna from all other similar species. The lower flanks and belly are silvery with 4 to 6 prominent, dark longitudinal stripes running from just behind the corselet back towards the tail. This is a gregarious fish and a fast swimmer. It feeds near the surface, forming schools composed to 50.000 or more individuals.

Found worldwide in tropical and warm temperate seas. Pelagic and seasonally migratory, it tends to be a loner or travel in small groups of 2 to 6 fish. The upper jaw is movable and the teeth are large, strong and literally compressed. The well-defined lateral line dips noticeably near the middle of the first dorsal fin. The back is a brilliant, deep, blue sometimes described as metallic or electric blue. Bright blue vertical bands, or "tiger stripes", flow down the sides onto the silver and sometimes join into pairs on the belly. It is found around wrecks and reefs where smaller fish that is feeds upon are abundant, but it may also be found far out at sea. It is reputed to be one of the fastest fish on the sea, attaining speeds of 50 mph (80 Km) and more. The first scorching run may peel off several hundreds of yards of line in seconds. Occasionally this fish jumps on the strike and often shakes its head violently when hooked in an effort to fee itself.

Found worldwide in tropical and warm temperate seas, the dorado is pelagic, schooling and migratory. Though occasionally caught from an ocean pier, it is basically a deep-water specie, inhabiting the surface of the open ocean. The dorado is a distinctive fish, both for its shape and its colors. Though it is among the most colorful fish in the sea, the colors are quite variable and defy an accurate simple description. Generally, when the fish is alive in the water is rich iridescent blue or blue-green dorsally, gold or silvery gold on the lower flanks and silvery white or yellow on the belly. The sides are sprinkled with a mixture of dark and light spots, ranging from black or blue to golden. The dorsal fin is rich blue, and the anal fin is golden silvery. When removed from the water, the colors fluctuate between blue, green and yellow. After death turns into uniformly yellow or silvery gray. Large males have high, vertical foreheads, while the female's forehead is rounded. Males grow larger than females.They are extremely fast swimmers and feed extensively on flying fish and squid as well as small fish.