There is no poison, and there are no organs or tissues in the body that can release toxins. It is one of the oldest vertebrates on the earth, which originated in the Cretaceous period1.300 million years ago. Freshwater fish belonging to the animal kingdom, chordates, skeletal animals, ACIPENSER, ACIPENSER, ACIPENSER, also known as ACIPENSER, ACIPENSER, ACIPENSER, etc. It is non-toxic and has no organs or tissues that can release toxins in the body.

It is the southernmost species of sturgeon, mainly distributed in China, Japan, South Korea, Laos, North Korea and other places. The Yellow River, Yangtze River, Pearl River, Minjiang River, Qiantang River and other water systems have been recorded in the history of China. Now the Yellow River, Minjiang River, Qiantang River and Pearl River have been extinct, and the Three Gorges Dam in the upper reaches of the Yangtze River has been extinct, only distributed in the middle and lower reaches of the Yangtze River and the Yangtze River system along the Yellow Sea and the East China Sea.

Life habits of Chinese sturgeon

Environment: Benthic fishes like to inhabit large rivers and offshore waters. It is migratory or semi-migratory. In spring and summer, they often gather in the estuary from May to June, and return to the upper reaches of the river to spawn and breed in autumn. Feeding habits: It is a carnivorous omnivorous fish, which mainly feeds on higher plant debris such as chironomid larvae, dragonflies and ephemera in its infancy, and crustaceans, fish, aquatic insects and molluscs in its adult stage.

Breeding: It is a late-maturing fish with a long breeding cycle. The first sexual maturity age of female fish is 14-26 years old, that of male fish is 9- 18 years old, and the breeding period is 9- 1 1 month. The optimum breeding water temperature is 65,438+08.0-20.5℃, and the fecundity of female fish is 20.5℃.