There are a lot of fish in the Yangtze River, about 350 species. The total number of freshwater fish far exceeds that of other water systems in China, with a total of 324 species. In addition, there are 10 species of migratory fish passing through the estuary and 16 species of saltwater and freshwater fish living in the estuary. The main fish species are Chinese sturgeon, silverfish, shad, channel catfish and so on. Among them, Chinese sturgeon is the largest fish in the Yangtze River and has the reputation of the king of fish in the Yangtze River. 1、 There are about 350 kinds of fish in the Yangtze River system and its affiliated lakes. Among them, there are 324 species of freshwater fish, far exceeding the total number of freshwater fish in other rivers in China. In addition, there are 10 species of migratory fish crossing the estuary, such as eel, Songjiang perch, Chinese sturgeon and shad migrating upstream. There are also 16 species of freshwater fish living in estuaries. 2、 Main fish species 1. Chinese sturgeon: Chinese sturgeon is the fish of the sturgeon family of teleosta and the largest fish in the Yangtze River. Therefore, it is called the king of Yangtze River fish. It is spindle shaped as a whole, with a sharp head and a long snout. As a benthic fish, its feeding habits are very narrow. It mainly feeds on fish and crustaceans, and stops feeding during spawning.
2. Silverfish: the body of silverfish is slender, cylindrical as a whole, and the body length is only about 12 cm. This kind of fish generally inhabits in the middle and lower layers of the water bottom, rarely goes to the biosphere, usually hides in aquatic plants, and has a certain phototaxis. Its reproductive ability is amazing. It will reproduce in large numbers before winter, which can last for 3-4 months.
3. Shad: shad is a kind of fish that lives in the sea. It migrates upstream in late spring and early summer to breed. Its young fish hide in the Jianghu and grow up to 150 mm and occasionally enter the sea. This kind of fish mostly feeds on plankton, shrimp and diatom. It is distributed in many waters of China.
4. Channel catfish: the scientific name of channel catfish is long snout. It is a kind of bottom fish. It usually lives in the river bend with slow water flow. It will hide at the bottom during the day and come out to look for food at night. It mostly feeds on aquatic insects and crustaceans. Although it is distributed in many waters in China, it is mainly in the Yangtze River system. （ChangJiangLiYouShenMeYu，ChangJiangYouDuoShaoYuDePinChong）