Chinese sturgeon is a kind of sturgeon. Acipenser sinensis is a very old animal. It appeared in the Upper Cretaceous at the end of Mesozoic about 65.438+0.4 billion years ago and was once a small partner of dinosaurs. Our ancestors knew and named the Chinese sturgeon long ago. According to documents, in the Zhou Dynasty, China people had called the Chinese sturgeon the king of tuna.
The average body length of ACIPENSER sinensis is about 40 cm, the longest is 130 cm and the largest weight is 600 kg. The body is spindle-shaped, with a long tip and four whiskers in front of the mouth. The mouth is located on the ventral side, which is elastic and can be stretched into a tube. The body is covered with five large and hard bone scales, one on the back and two on the side and abdomen.
distribution range
China, Japan, Korea, Lao People's Democratic Republic and Korea.
The Chinese sturgeon is the only sturgeon that crosses the Tropic of Cancer. It is mainly distributed in the coastal areas and major rivers south of the west coast of the Korean Peninsula, from Jinsha River to the mouth of the Yangtze River in China, and other water systems such as Ganjiang River, Xiangjiang River, Minjiang River, Qiantang River and Pearl River occasionally appear, among which the Yangtze River produces more.