The white marlin is very similar to the blue marlin (Makaira nigricans), and can be differentiated based on fin morphology. White marlin are found only in the Atlantic Ocean, while blue marlin (like swordfish) inhabit not only the Atlantic but also the Pacific and Indian Oceans. A Blue Marlin will have a rather rounded body unlike the Striped Marlin which has a rather flattened body when compared to the Blue. Its flesh is pale white. The white marlin has a rounded dorsal fin at the front end, a rounded tip on the pectoral and anal fins, and spots on the dorsal fin, while the blue marlin has pointed dorsal, pectoral, and anal fins and no spots on the dorsal fin. The first tournament, held in 1974, drew 57 boats, 150 anglers and paid $20,000 in prize money with the top award of $5,000. In the past, ICCAT's scientists assessed both the North and South Atlantic sub-populations separately, and they continue to do this for swordfish. BLUE MARLIN. The White Marlin Open is a 47-year-old deep-sea fishing tournament held annually in Ocean City, Maryland. They live in New Zealand and have stripes. Its Dorsal Fin is a lot shorter than the others and a little more rounded. Blue Marlin are the largest, Black Marlin are the fastest, White Marlin are agile and elegant, and Striped Marlin are plain cool. The tournament awards prize money for catches of white marlin, blue marlin, tuna, wahoo, dolphin and shark.

The colour is dark on top and brightly light on the bottom with a very distinct line between the two. Its body is shorter and thicker compared to the others, so is its bill. These fascinating fish have a stellar reputation among anglers for their speed and force.