In fact, the so-called silver scale is not a scale, but a layer of epidermis formed by special fat, called "silver fat", which is a kind of high-quality fat with high nutritional value and no odor.
Extended data
Hairtail, banded, flat side. The ventral margin of the front back is parallel, and the body length is generally 50-70cm, with a maximum of 120cm. The head is long and narrow and the nose is long. Big eyes, high position, flat eye spacing and slightly convex center. Big mouth; Straight, the back edge of the mouth crack reaches below the eyes.
Hairtail along the coast of China can be divided into two categories: south and north. The hairtail in the north is bigger than that in the south. It overwinters in the south of the Yellow Sea in spring and swims to the Bohai Sea, forming a spring fish season, and returns to the wintering area in autumn, forming an autumn fish season. The southern hairtail moves north and south along the western edge of the East China Sea every year according to different seasons, and migrates to the north in spring and to the south in winter. Hairtail in the East China Sea can be divided into spring and winter. Hairtail spawns for a long time, mainly in April-June, followed by 9-165438+1October, spawning amount is 25000-35000, and the suitable water temperature for spawning is 17℃ ~ 23℃.
References hairtail (teleosteichthys trichiuridae animals) _ Baidu Encyclopedia?