The raw material of tiger shrimp in Qixintian is black tiger shrimp, also known as spotted shrimp, ghost shrimp, grass shrimp, flower shrimp, bull shrimp, etc. The United Nations Food and Agriculture Organization calls it giant tiger shrimp, which is distributed from southern Japan, South Korea, China's coastal areas, the Philippines, Indonesia, Australia, Thailand and India to the eastern coast of Africa. In natural environment, there are two spawning periods of black tiger shrimp in China's coastal areas from February to April and from 8- 1 1 month every year. From here, it is not difficult to find that black tiger shrimp is widely distributed, and China has already started breeding.