1, Southeast Region: 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 mud carp, curly fish, Chinese mackerel, Dongpo fish, loach, loach, flat-headed loach, rock-climbing loach, flat-finned loach, small-snout fish, long-finned catfish, bearded catfish and eel. The main cultured fish are southern species such as herring, grass, silver carp, bighead carp, herring, bream bream, bearded catfish and tilapia.

2. River plain area: including the middle and lower reaches of the Yangtze River, the lower reaches of the Yellow River and the lower reaches of the 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, mullet and eel. Whitebait in Taihu Lake, sturgeon, catfish and silver carp in the Yangtze River have a large output.

3. Southeast region: 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 mud carp, curly fish, Chinese mackerel, Dongpo fish, loach, loach, flat-headed loach, rock-climbing loach, flat-finned loach, small-snout fish, long-finned catfish, bearded catfish and eel. The main cultured fish are southern species such as herring, grass, silver carp, bighead carp, herring, bream bream, bearded catfish and tilapia.

4. River plain area: including the middle and lower reaches of the Yangtze River, the lower reaches of the Yellow River and the lower reaches of the 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, mullet and eel. Whitebait in Taihu Lake, sturgeon, catfish and silver carp in the Yangtze River have a large output. The cultured fish species include green grass, silver carp, bighead carp, carp, crucian carp, bream bream, tilapia and some hybrids of carp.

5. Northern area: cold-water fish are mainly produced here, and natural water bodies are rich in sturgeon, pike, hucho and other fish, such as salmon, pike, fragrant fish, snow fish, mackerel and octopus, which are unique and representative fish here. In addition to green grass, grass, silver carp, bighead carp, carp, crucian carp and bream, red trout is also raised.