Living in the upper and middle classes of Jianghu. Strong swimming ability, fierce sex, quick action, often attacking and chasing other fish.

Class, once pursued by it, it is difficult to escape, this is a typical predatory fish. Sexually mature 3-4 years old, parent fish spawn in river rapids from April to June. Young fish swim from the river to the attached lake for feeding and fattening, and after the end of autumn, young fish and adult fish go deep into the mainstream riverbed for the winter. The growth is very rapid. After sexual maturity, body length continues to increase. The largest individual is 2 meters long and weighs 80 kilograms.