Hairtail belongs to trichiuridae, Perciformes, Chordata, Vertebrates, a bony fish. Swordfish, scientific name Liaodong silver carp, also known as anchovies and anchovies, is a migratory fish. Swordfish usually live in the sea. Every spring, swordfish will flock up the river to form a fish season. Small in size, but abundant in quantity and high in yield, it is a common economic fish along the coast.

Characteristics of saury

Saury is flat and long on the side, high in the front and gradually decreasing in the back; The dorsal margin is straight and the ventral margin has serrated scales. The head is short and the side is flat and sharp. The kiss is blunt and round, protruding. Eyes are small, close to the nose and mouth. The space between the eyes is convex. There are two nostrils on each side, which are closer to the front edge than to the snout. Big mouth, low position. The mouth is obliquely cracked.

When young, the maxilla is short and extends backward to the vicinity of the branchial lid; The maxilla of adult fish extends backward to the base of pectoral fin, and the lower edge of maxilla has small serrations. 2 pieces of auxiliary maxilla. Teeth are very small, and there are teeth in both jaws, vomerous bones and palatal bones. The gill holes are very wide. Gill rake is slender. The left and right operculum membranes are connected, but the isthmus is not connected. The anus is near the front of the anal fin.

Baidu Encyclopedia-saury