The blue marlin is one of the fastest and strongest predators of the open ocean. It is also one of the most sought-after game fish in the world. Distributed throughout the tropical and subtropical waters of the Atlantic Ocean, the blue marlin spends most of its life far out at sea. It is one of the largest bony fish; it grows up to a size of 5 meters and weighs around 820 kilograms. It has a long bill that grows out of its head which is used to stun the prey by slashing on its head. This action knocks the prey unconscious.
Blue marlins prey on a wide variety of marine organisms, mostly near the surface including mackerel and tuna. Many parasites live on them. Once a blue marlin grows and matures, only very few predators like the great white shark, prey on them.
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