How many kinds of freshwater fish are there in China, and what kinds can people eat regularly?

China is one of the countries with more fresh water surface in the world, with a fresh water area of about 300 million mu, including 7,500 mu of fish farming. Most areas in China are in temperate or subtropical zone, with mild climate and abundant rainfall, which are suitable for fish growth, and there are also excellent fish culture techniques such as grass carp, silver carp, bighead carp, carp, crucian carp and bream. Due to China's vast territory and different geographical and natural environments, fish species and patterns in different regions have their own characteristics. According to the regional classification of climate, the distribution of fish is as follows:

Southeast China: including Guangdong, Guangxi, Yunnan, Guizhou, Fujian, Taiwan Province and Hainan Island. Warm-loving fish mainly grow in these areas, and there are many varieties, such as shad, curly fish, mackerel, Dongpo fish, loach, loach, flat-headed loach, rock climbing loach, flat-finned loach, small-snout fish, long-finned catfish, bearded catfish, eel and so on. The main cultured fish are southern species, such as herring, grass carp, silver carp, bighead carp, herring, snapper, catfish and tilapia.

River plain area: including the middle and lower reaches of Yangtze River, Yellow River and Liaohe River. In addition to river basins, there are many lakes here, which are the main producing areas of freshwater fish in China. There are many famous natural aquatic fish, including green grass, silver carp, bighead carp, carp, crucian carp, catfish, bream, bream, mullet and eel. The output of whitebait in Taihu Lake, sturgeon in Yangtze River, catfish and bonito is very high.

It's huge. The fish species are green grass, silver carp, bighead carp, carp, crucian carp, bream, tilapia and some carp hybrids.

Northern region: Cold-water fish are mainly produced here, and the natural water bodies are rich in sturgeon, pike, taimen and other fish, such as salmon, pike, fragrant fish, snow fish, red snapper, octopus and so on, which are unique representative fish here. Besides green grass, grass, silver carp, bighead carp, carp, crucian carp and bream, red trout is also raised.

Northwest Plateau: including Xinjiang, northern Tibet, Inner Mongolia, Qinghai, Gansu, Shaanxi, Shanxi and other places. This is a typical continental climate. Natural water bodies are rich in Chinese bow fish, yellow claw fish, naked carp and so on. And other fish such as loach and river loach. The main farming is still the same as other places.

Nulan district: including southern Tibet, Sichuan and western Yunnan. The Nujiang River, Lancang River, Jinsha River and Yarlung Zangbo River all flow through here, so that fish in the southeast and northwest plateau areas can be stored here through rivers, such as shad, mackerel, Dongpo fish, flat-fin loach, loach, catfish with beard, perch, yellow croaker, snakehead and Chinese bow fish. Aquaculture is mainly green grass, silver carp, bighead carp, carp, crucian carp, bream bream and carp hybrids propagated in recent years.