It's a common name, and its scientific name should be "Tangyan Fish".

once lived widely in tropical and subtropical seawater and fresh water. The Yangtze River basin belongs to the temperate zone, but before the 198s, there was survival in the rivers in the south of the Yangtze River and inland river ponds.

The popularity of indigenous fish is also related to the World Expo. On the night before the opening of the Shanghai World Expo, a grand state banquet was held at the Shanghai International Convention Center, which was called the "First Banquet of the World Expo". One of the main dishes of the dinner was shepherd's purse and pond bream. At present, many hotels in Jiangsu and Zhejiang provinces have begun to write the shepherd's purse pond snakehead fish as a typical spring delicacy in Jiangnan. The market demand for mud bream (that is, indigenous fish) has gradually increased.