Bonito refers to the fish belonging to the genus bonito of the order Perciformes, also known as "Yanzai", "Zhengyin", "Xiaochuan" and "Chai Yu" and so on. The body shape of bonito is spindle-shaped. Their heads are relatively large, their eyes are relatively small, and their mouths are large and oblique. The body length of common bonito is between 50-60 cm, but there are also slightly larger bonito, and the body length can reach 1 m.
Bonito is a kind of fish that lives in seawater, so they are marine fish in nature. All kinds of structures of their bodies are adapted to life in seawater, but generally they cannot live in fresh water. Specifically, bonito is widely distributed in the sea areas around the world, including the Pacific Ocean, Indian Ocean and Atlantic Ocean. Especially in tropical and subtropical seas, there are a lot of bonito. From the feeding point of view, bonito is a carnivore, which can take fish, crustaceans and molluscs in seawater as its own food.
The difference between the two: the former is small in size, only produced in Hainan Island, has the fragrance of Ding Hua, and has high nutritional value. The latter is larger, whether it is a marine fish or a carnivorous fish.