The yellowing of Chaoshan is commonly known as climbing perch, and the scientific name is crucian carp. Perch is an omnivorous fish, which preys on a wide range. Zooplankton, aquatic insects larvae and higher plant debris are the main foods in the juvenile stage, small fish, small crustaceans and aquatic insects are the main foods in the juvenile stage, and fish, crustaceans, aquatic insects and plant seeds and debris are the main foods in the adult stage. Can be domesticated under artificial feeding conditions.