The Chinese sturgeon is not extinct. Fish, sturgeon. This is a migratory fish. After maturing in the ocean, they live in groups in the estuary from May to June every year, and go upstream from the East China Sea in autumn to lay eggs in Jinsha near Yibin in the upper reaches of the Yangtze River. After the young fish are born, they go downstream and live in the Yangtze River and the ocean. Shaped like sharks and sturgeons. The body length is rhombic, the mouth is born horizontally under the head, and there are five ribs on the body surface. For the national first-class protection of animals. The annual output of the Yangtze River is around 500, about 70,000 kilograms.

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The spawning ground is located in the upper reaches of Jinsha River and Yangtze River, with narrow channels, with piled rocks at the upper end and dams formed by stones or pebbles at the lower end. Eggs are laid on stony riverbeds, and fertilized eggs attach to stones for development. When the water temperature is 17 ~ 19℃, after about 6 days, the larvae either fall into the crevices of rocks or flow downstream to the slow flow area. Development and growth of benthic invertebrates feeding on plankton.

Young sturgeons descend to the middle reaches of the river from March to April of the following year, and live in the brackish water area of the Yangtze River estuary from May to August. At this time, they mainly eat crustaceans and small bottom fish. After breeding, the parent sturgeons still return to the ocean, and some reproduce again in the upper reaches of the Yangtze River many years later. The Chinese sturgeon in the Pearl River system enters the river from the sea at the beginning of each year, and breeds from the lower reaches of Liujiang to the Sanjiangkou of Shilong in Qianjiang in March and April of that year.