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Fastest Fish in the World

The fastest fish in the ocean, Sailfish can reach speeds of 68 miles per hour (110 km/h). These powerful beasts can grow to more than 10 feet (3m) and weigh up to 220 lb (100 kg). Their meat is fairly tough and not widely eaten. One of the secrets of the sailfish's speed lies in its musculature. It has huge amounts of white muscle, great for acceleration but not stamina. Sailfish like to eat other smaller fish and squid. Their large size and spirited fight make them a favorite among trophy fishers. Sailfish prefer the warm waters of both the Atlantic and Pacific oceans. They get their name from their spectacular dorsal fin that stretches nearly the length of their body and is much higher than their bodies are thick. Sailfish are believed to live up to 10 years. Sailfish are fairly abundant throughout their range, and their population is considered stable.

Sailfish Istiophorus Platypterus
Max. recorded speed of 68 MPH (112 KM/H)

The world’s second fastest fish is the Striped Marlin. This sport-fish can swim up to 50 mph or 80 km/h.  It is a large fish,  weigh over 415 lb (190 kg). Most Marlins eat tuna fishes, squid, mackerel, and scad. They can be found on the surface or mid-depth in the open ocean. All marlin have the ability to change their color patterns depending whether they are excited, fatigued or in courtship. They spend most of their time in the upper waters of the ocean, above the thermocline, usually within 30 feet of the surface. The striped marlin can grow up to 420 centimeters (165 inches). They have a relatively short lifespan and reach sexual maturity at an early age. Their numbers aren't sustainable at the rate they're removed from the ocean. 

second fastest fish

Striped Marlin Tetrapturus audax
Max. recorded speed of 50 MPH (80 KM/H)

Wahoo (or Peto) grow up to 8 ft (2.5 m) in length, and weighing up to 180 lb (83 kg). Wahoo prefers to live alone or in loose groups of two or three fish. Hispanic areas of the Caribbean and Central America refer to this fish as Peto. Wahoo is one of the fastest predators in the ocean. The wahoo's maximum speed is said to be around 48 mph (77 km/h). Body elongated and covered with small, scarcely visible scales. Mouth is elongated and narrow, and equipped with sharp teeth.The wahoo mainly eat squid, but it will eat any other type of fish or animal that it can fit into its mouth. The Wahoo move with the changing seasons, traveling into cooler waters during warm summer months. This fish is not listed as endangered or vulnerable with the World Conservation Union. The Wahoo has white flesh of good eating quality.

Wahoo  Acanthocybium solandri
Max. recorded speed of 48 MPH (77 KM/H)

Southern Blue fin tuna is the fourth fastest fish on planet. Can live for 20 to 40 years. This fast fish can reach lengths up to 14 feet and weights up to 750lb (340kg). They are a highly migratory fish species. Hunt by sight, and have the sharpest vision of any bony fish, and can dive down to around 1,000m to find food. A warm body temperature also helps these fish swim fast. Their diet consists mainly of fish, squid and oceanic invertebrates. Their predators are orcas and sharks. Reaching speeds of 45 miles per hour (72 km/h). The southern bluefin tuna lives in the open ocean and travels large distances. They are considered critically endangered, the only status left before extinction. Implementation of effective conservation and management measures are urgently needed.

Southern Blue fin tuna Thunnus maccoyii
Max. recorded speed of 47 MPH (76 KM/H)

The Blue Shark is a large fish, indigo blue colour from above and a blue on its sides, changing to white underneath. Estimates of their speed varies. Average lifespan: 30 years, weight: up to 400 lb (182 kg), length: 13 ft (3.8 m). Blue sharks eat almost everything. Males and females becoming sexually active at around 5 years of age. The blue shark is an oceanic shark found worldwide in deep temperate and tropical waters from the surface to about 350 m. These sharks are migrants and love the deeper waters all over the world. They are not as violent as other sharks in the ocean but they may attack if provoked or irritated. There is concern over the removal of such large numbers of this predator from the oceanic ecosystem.

Blue Shark Prionace glauca
Max. recorded speed of 44 MPH (70KM/H)