Red-eyed trout (Squaliobarbus curriculus) belong to CYPRINIDAE, yarrow subfamily, and are called red-eyed trout and sea cucumber locally. Its body length is cylindrical, its back and abdomen are flat, its body is silvery white, its back is slightly dark gray, and there is obvious erythema on the upper edge of the eye, so it is named red eye. It is a kind of high-quality economic fish, which is produced in all water systems in China. It has the advantages of fast growth, strong adaptability, miscellaneous eating habits and high commodity prices.