Morphological characteristics
The body is stout, slightly flat, and fusiform, with a length of 20-40 centimeters and a weight of 150-400 grams. The head is large, with a thin, pointed, conical tip, large eyes, a large mouth, and long upper and lower jaws with a line of fine teeth on each side, and a line of teeth in the plow bone and the spiracle bone, and fine round scales on the back of the body, which is greenish-black or dark blue, and an irregular dark blue coloration above the pectoral fins. Insecticidal pattern, abdomen white and slightly yellowish, two dorsal fins far apart, the first dorsal fin spines 9-10, the second dorsal and anal fins are opposite to each other, and there are five small fins above and below the back of them; the caudal fin is y forked, with two elevated ridges on both sides of the base; the pectoral fins are light black, the anal fins are light pink, and the other fins are light yellow.
Origin and season
Distributed in the western Pacific Ocean. China's offshore are produced. There are mainly ocean islands, Lianqingshi, Dasha and sand outside the fishing grounds, fishing season is generally spring flood for April to July; fall news for September to December. The South China Sea coast can be caught throughout the year.
Economic value
One of the important pelagic economic fish in China. This fish is widely distributed, fast-growing, high yield, fish meat per 100 grams containing 214 grams of protein, 74 grams of fat, solid meat, in addition to fresh food can also be sun-dried and canned, and its liver can be refined cod liver oil.