White sturgeon is a large and ferocious fish. Both adults and juveniles feed on fish as their main food, and also eat a small amount of shrimps, crabs and other animals. The paddlefish is also a large fish. According to the records of the famous zoologist Professor Bingzhi, a 7-meter-long and one-ton individual was caught in Nanjing. Sichuan fishermen also have the saying of "a thousand catties of Lazi (Chinese sturgeon) and a ten thousand catties of elephants (white sturgeon)".