The Yangtze River swordfish points to ? Coilia nasus ?

Anchovy family ? Engraulidae 鲚属 Coilia鱼类

下图为 ? Coilia nasus Coilia nasus (Coilia ectenes), commonly known as ? Yangtze swordfish, hairy flower fish, wild hairy fish, plum crabs

Long-jawed crabs from the head to the tail gradually thin, rounded abdomen, long upper jaw, more than the base of the pectoral fins, pectoral fin fins fins thin, there are six long filaments, the anal fins are long and connected to the caudal fins, the caudal fins are short, the anal fins soft strips of 80, the length of up to 26 centimeters, the length of the body, the body side of the body is flat, and backward tapering tip of a sickle, so it is so named. General body length of 18 to 25 centimeters, weight 10 to 20 grams. The muzzle is short and rounded. The mouth is large, oblique and inferior. The sides of the body are covered with large, thin, round scales, and the belly has ribbed scales without lateral lines. Upper pectoral fins with 6 filamentous free fins; dorsal and anal fins, one each, anal fin long to the tip of the tail connected to the caudal fin, caudal fin small and sharp knife-shaped. Head and back light blue. Sides of body slightly yellow, abdomen grayish white. The bases of all fins are beige, and the edge of the caudal fin is black.

The Yangtze swordfish is one of the typical migratory fish species. During the reproductive season, it enters the freshwater area from the estuary and goes upstream along the main stream to the middle reaches of the Yangtze River for reproductive migration. After spawning, the parents are scattered in the freshwater to feed, and slowly return to the estuary and offshore to continue fattening one after another. The juveniles of the Yangtze swordfish also migrate downstream to the estuary for fattening.