Different varieties. Originated in China, it is widely distributed in China, starting from Hainan Island in the south and reaching the Heilongjiang River Basin in the north, but there is little water in the north of the Yellow River. The fish in Dali Lake is a specialty of Keshiketeng Banner in Chifeng City, Inner Mongolia Autonomous Region, and a geographical indication of agricultural products in China. Different varieties of them have different names.