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Swordfish

Swordfish have a typical streamlined body with a smooth surface, a long, pointed upper jaw, a small dorsal fin, a flattened mouth, and no gills or ventral fins. Swordfish vary in color, with the back and body largely brownish-black. The average weight of the swordfish is 68-113 kg, the average length is 2.1 m, and the mouth accounts for 1/3 of the length of the swordfish's body.The swordfish's main diet consists of other fish and squid. Swordfish are found in all oceans except the Arctic Ocean, and are themselves a major food fish with important fisheries value

Marlin (marlin) Also known as the pierced needlefish.

Perciformes (Perciformes) sailfish family (Istiophoridae) several species of long-nosed large marine fish. The body is elongated, with a long dorsal fin and an extended kiss in the form of a long dart gun. Drift in the global sea surface. Carnivorous, mainly feeding on other fish. Its meat is delicious and very popular with anglers. There are many fish called marlin, but there are four recognized species, namely, blue, black, striped and white marlin. Blue marlin (Makaira nigricans) worldwide distribution, large up to 800 kilograms (360 kilograms), body color dark blue, belly silver, often with light-colored vertical bars. The black marlin (M. indica or Istiompax indicus) is similar in size to the blue marlin or larger, and has been known to reach over 700 kg (1,500 lb). Indo-Pacific species; dorsal side of body blue or blue-gray, ventral side pale; unusual in having straight pectoral fins that intersect the body at an acute angle, making it difficult to flatten them against the side of the body without external force. The striped marlin (M. audax or Tetrapterus audax) is another Indo-Pacific marlin, with the upper part of the body light blue, the lower part white, with gray and white vertical stripes, and its weight generally does not exceed 125 kg. The white marlin (M. albida or T. albidus), which only occurs in the Atlantic Ocean, has a bluish-green body, a grayish belly, and grayish vertical stripes on the sides of the body, and has a maximum weight of about 45 kilograms.

The important food fish and swimming fish of the genus Istiophorus of the family Perciformes (Istiophoridae) are distributed in hot and temperate seas all over the world. The snout extends as an oblong, spear-like shape, and is distinguished from closely related species such as marlin by a more elongated body and long ventral fins, especially the dorsal fin, which is as broad as a sail. The body is dark blue with a silvery white ventral side and a bright blue and spotted dorsal fin. The body is about 3.4 meters (11 ft) long and weighs about 90 kg (200 lb) or more. Feeds primarily on other fish. The taxonomy of the sailfish is inconclusive and may be considered one species of I. platypterus or several species.

The sailfish, also known as the banana fish. It is generally 200 to 300 centimeters long and weighs up to more than 300 kilograms. For the Pacific tropical and subtropical oceanic fish. Distributed in Indonesia to the central Pacific islands, north to southern Japan. China is produced in the South China Sea islands, Taiwan waters, Guangdong, Fujian, Zhejiang, Jiangsu, Shandong and other coastal. It feeds on mollusks such as small fish and squid.

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