Hairtail is also called saury and toothfish. Hairtail is divided into kelp fish and small hairtail according to the origin, and silver hairtail and black hairtail according to the color. It is named for its flat shape. Hairy fish has less fat thorns, tastes Chen Hao and is rich in nutrition, and can be eaten fresh, salty and frozen.

The white-headed sea dragon is a kind of white-headed sea dragon with a flat body and a long shape. Big mouth, fangs and big eyes. The leucorrhea is smooth and scaleless, and the fish is silvery white. The dorsal fin is extremely long at the base, and the caudal fin is mostly filiform and black in color. The leucorrhoea mostly lives in the sea area of 1 ~ 400 meters. It is a migratory fish with fierce temperament and occasionally enters the estuary area. When perching, they often stand in the water with their heads up and their tails down.

Hairtail is rich in nutrition. Every 100g of fish meat contains fat 16.88g, egg white 14g, phosphorus1.1g, and contains various nutrients such as fat, calcium, iron, vitamin A and iodine. Most of the fat exposed in hairtail is fatty acid without satiety, which has a long carbon chain and can lower cholesterol.