About This Fish

Striped Marlin

The striped Marlin (Kajikia audax) is a ray finned fish which belongs to the family Istiophoridae under order Perciformes of Class Actinopterygii. It is also known as barred marlin, Marlin, Pacific striped marlin. The striped marlin is pelagic billfish which is native to the Indian and Pacific oceans. It is usually seen close to shore only where deep drop-offs occur. It is solitary but will form small schools during the spawning season.

The striped marlin's body is elongated and compressed. It is purple-blue in color on the top of the body and silvery-white on the sides while belly is silvery. Body is densely covered by small embedded scales with 1 or 2 bluntish points. Upper jaw is produced into a robust and medium sized beak. Membrane of first dorsal fin is blue black without dark spots. About 20 bluish stripes are present on the flank. First dorsal fin is dark blue while other fins are dark brown sometimes with a tinge of dark blue. Anal fin bases are with a tinge of silvery white. It has two dorsal fins, of which, the first dorsal fin contains 37-42 rays while second dorsal fin bears 5-6 rays. Dorsal fin is with triangular peak at front and remainder of this fin is very low. The first anal fin consists of 13-18 rays while second anal fin contains 5-6 rays. Pectoral fin is long and pointed with 18-22 rays. Pelvic fin is long and slender about equal to or slightly shorter than pectoral fin. The striped marlin is apex predator which feeds non-selectively on many types of epipelagic fishes such as lancetfish, anchovy, pilchard, trevally, small tuna-like species and flutemouths, squids and other organisms. The female striped marlin reaches sexual maturity at 1.5-2.5 years of age while male at 1-2 years of age. Spawning occurs during the period from April to August. The female may produce 11-29 million eggs annually. It grows up to 420 cm in length, 550lb and can live up to 11 years.