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The largest blue marlin caught by IGFA angling rules is from Vitoria, Brazil, which weighed 1,402 lb (636 kg).; [15] fishermen often refer to individual marlins that reach or exceed 1,000 pounds as "granders". Both sexes have 24 vertebrae, of which 11 are precaudal and 13 are caudal. [16] The marlin has two dorsal fins and two anal fins.
White marlin have a set of similar pectoral fins and pelvic fins. These two sets of fin are rounded and wide at the tip. They also have two anal fins which can be used for identification between species. The lateral line on this species is prominent, with a hump above the pectoral fin and extends the length of the fish toward the caudal fin.
Caudal/Tail fins: Also called the tail fins, caudal fins are attached to the end of the caudal peduncle and used for propulsion. The caudal peduncle is the narrow part of the fish's body. The hypural joint is the joint between the caudal fin and the last of the vertebrae. The hypural is often fan-shaped.
Billfish. The billfish are a group of saltwater predatory fish characterised by prominent pointed bills (rostra), and by their large size; some are longer than 4 m (13 ft). Extant billfish include sailfish and marlin, which make up the family Istiophoridae; and swordfish, sole member of the family Xiphiidae. They are often apex predators which ...
Fish fin. Ray fins on a teleost fish, Hector's lanternfish. (1) pectoral fins (paired), (2) pelvic fins (paired), (3) dorsal fin, (4) adipose fin, (5) anal fin, (6) caudal (tail) fin. Fins are moving appendages protruding from the body of fish that interact with water to generate thrust and help the fish swim. Apart from the tail or caudal fin ...
The pectoral fins, which have 21 to 23 rays, are falcate and flexible, and can be drawn in to the sides of the body. The nape is highly elevated. The upper jaw forms a robust but not very long beak, round in cross section. The caudal peduncle shows strong double keels on each side. The body color is blue-black dorsally and silvery white ...
Classification. The marlins are Istiophoriform fish, most closely related to the swordfish (which itself is the sole member of the family Xiphiidae). The carangiformes are believed to be the second-closest clade to marlins. Although previously thought to be closely related to Scombridae, genetic analysis only shows a slight relationship.
Marlin sucker. The marlin sucker or spear-fish remora (Remora osteochir) is a species of remora found all over the world in tropical and temperate seas. It can reach up to 40 cm (16 in) in standard length. It normally lives attached to a larger fish; its host preference is for marlins (as the name implies) and sailfishes, but it will attach to ...