This species is known for its long bill that grows from the front of its head. Blue marlin use this bill to stun their prey by slashing their heads in a side-to-side motion, knocking potential prey unconscious, and making it easier to catch. The blue marlin’s bill differs from the swordfish’s and the sailfish‘s by being round and pointed, rather than flat and blunt. Like many open ocean bony fishes, blue marlin start out as extremely tiny larvae, no more than a few millimeters long and weighing only a few hundredths of a gram. Soon after hatching, they already have a visible bill. Blue marlin grow rapidly, and in the course of their lives they may increase their body weight by at least one million times.

Because blue marlin undergo such an amazing transformation in size (from being nearly microscopic to being one of the largest open ocean predators), they eat a wide variety of prey, throughout their lifetimes. At a young age, they eat tiny zooplankton, and their prey increases in size as they do. As adults, they eat fairly large bony fishes and squids. Similarly, blue marlin are eaten by a wide variety of predators. When they are newly hatched, they are eaten by other fishes that specialize on eating plankton. The size of their predators increases as they grow, and adult blue marlin are not eaten by anything other than large open ocean shark species.

A tuna is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the Scombridae family. The Thunnini comprise 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna up to the Atlantic bluefin tuna, which averages 2 m and is believed to live up to 50 years.

Mahi-mahi have compressed bodies and a single long-based dorsal fin extending from the head almost to the tail.^[6] Mature males have prominent foreheads protruding well above the body proper. Females have a rounded head. Their caudal fins and anal fins are sharply concave. They are distinguished by dazzling colors – golden on the sides, and bright blues and greens on the sides and back. The pectoral fins of the mahi-mahi are iridescent blue. The flank is broad and golden. Out of the water, the fish often change color (giving rise to their Spanish name, dorado, “golden”), going through several hues before finally fading to a muted yellow-grey upon death.

Mahi-mahi can live for up to five years, although they seldom exceed four. Females are usually smaller than males. Catches typically are 7 to 13 kg (15 to 29 lb) and a meter in length. They rarely exceed 15 kg (33 lb), and mahi-mahi over 18 kg (40 lb) are exceptional. Mahi-mahi are among the fastest-growing of fish. They spawn in warm ocean currents throughout much of the year, and their young are commonly found in rafts of Sargassum weeds. Young Mahi Mahi migrate past Malta where they are called Lampuki and Sicily where they are known as Lampuga or Capone; there they are fished using nets and floating mats of palm leaves under which they collect.

Wahoo (Acanthocybium solandri) is a scombrid fish   found worldwide in tropical and subtropical seas. It is best known to sports fishermen, as its speed and high-quality flesh makes it a prized and valued game fish. In  Hawaii , the wahoo is known as ono.^[4] The species is sometimes called hoo in the  Uninted Staters and The Bahamas

A Red Snapper’s body is usually a color that approximates pink. It has a white underbelly and red eyes. Its snout, which is a prominent feature, tends to be pointed. Beneath the snout is a mouth that is filled with very short teeth that closely resemble needles. It also has a pointed anal fin. The average fish of this kind is between 1 foot and 2 feet long and will weigh less than 10 pounds. However, they are able to reach up to 40 inches long and 50 pounds. The largest Red Snappers can live for extended periods of time, for up to 20 years.