I know the difference between Jiangtuan fish and Qingjiang fish is as follows: Jiangtuan fish is scientifically called long snout fish, and Qingjiang fish refers to fish produced in Qingjiang reservoir area of Hubei Province. Jiangtuan fish is tender and nutritious, while Qingjiang fish has the best meat quality and is praised as "the king of freshwater fish" by the industry. Jiangtuan fish are mainly distributed in the Yangtze River basin in China, and Qingjiang fish are mainly distributed in the Qingjiang reservoir area in Hubei Province. Jiangtuan fish has a flat body, a strong head and small eyes, while Qingjiang fish has a relatively small head and large eyes.