The amphioxus is a marine fish, amphioxus is distributed in the Indian Ocean, the Pacific Ocean, the Atlantic Ocean tropical and temperate waters. In Southeast Asia, Australia, Japan, the tropical and temperate Atlantic coast of America, the west coast of Africa and other waters are distributed. In China, it is distributed in the South China Sea, the East China Sea and the Yellow Sea, and there is a certain amount of resources along the coasts of Guangdong, Guangxi, Hainan and Fujian. Oviparous pomfret_ belongs to offshore oceanic spawning fish, in Guangdong, China, artificial reproduction starts in April to May every year, and lasts until August to September, the amount of eggs carried by an individual is 400 to 600 thousand. After hatching in the natural sea area, the young and juvenile fish 1.2 to 2 centimeters began to swim to the near shore, and the juvenile fish that grew into 13 to 15 centimeters swam to the offshore sea area.