The crabs in Huangpi Lake are pure natural green aquatic products. They served as royal tributes to the court during the Xianfeng period. The company's breeding base is located in Huangpi Lake in the east of Qijiang County. It is connected to Chaohu Lake, a famous freshwater lake in China. It is adjacent to the Yangtze River and Xihe River. It has 23,900 mu of aquaculture water surface and an average water surface of 1.5 meters. The lake has flat, silt, clear water and water. Wide, there is no pollution in the whole lake area. The “underwater forest” with abundant water and grass and snails in the lake has clear water quality. The all-natural aquatic biological resources are the natural place for the growth of hairy crabs.

The crabs in Huangpi Lake are pure natural green aquatic products. They served as royal tributes to the court during the Xianfeng period. The company's breeding base is located in Huangpi Lake in the east of Qijiang County. It is connected to Chaohu Lake, a famous freshwater lake in China. It is adjacent to the Yangtze River and Xihe River. It has 23,900 mu of aquaculture water surface and an average water surface of 1.5 meters. The lake has flat, silt, clear water and water. Wide, there is no pollution in the whole lake area. The “underwater forest” with abundant water and grass and snails in the lake has clear water quality. The all-natural aquatic biological resources are the natural place for the growth of hairy crabs. Huangpi Lake is located in Qijiang County, only 3.5KM away from the county seat. It is bounded by Hejie Expressway in the north and 319 Provincial Highway in the east. The total drainage area is 598km2. It can communicate with the Yangtze River and Chaohu Lake through the Xihe River and Zhaohe Lake. Huanghua Lake is a shallow-water grass lake with a west-east trend, with a vertical diameter of 10 kilometers and a lateral width of 3.5 kilometers. The total area is 37.9 square kilometers. The annual average water depth is 1.5 meters and the deepest is 2-3 meters. There are some low hills around Huanghua Lake, and the rest are fertile farmland farming areas. The unique lake features and surrounding environment provide rich nutrients for the lake. The Huanghua Lake area belongs to the subtropical monsoon climate zone. It is characterized by distinct four seasons, significant monsoon climate, mild climate, sufficient sunshine, moderate rainfall, long frost-free period and sufficient light and hot water sources. The annual average temperature is 16°C, the annual average precipitation is 1188.1mm, the annual sunshine hours are 1823.5 hours, and the frost-free period is 236 days. The climate characteristics are suitable for the growth and fattening of Eriocheir sinensis. The main tributaries of Huanghu Lake into the lake are Sujiahe, Zhongtang River, Dongda River, Biandan River, Huangni River, Wayang River, Maba River and Losao River. The Huangni River and Wayang River are the two largest tributaries. The water level of Huanghua Lake is relatively stable, and it can also be controlled by appropriate manual. The water level generally starts to rise from April to May, and reaches the highest in the year from July to August. It begins to decline after October, until March to April of the following year. The water level changes gently, and the amplitude is generally below 1.24 meters. The relatively stable water level is very beneficial to the habitat and clam shell of the Huanghua Lake hairy crab. Huanghua Lake has a rich history of hairy crabs for thousands of years. The "Zuo Ci Opera Cao Cao" and "Zhou Yu Xiao Qiao Crab" recorded in "Jiangjiang County Records" fully confirm the magnificent history and the crab culture of Huanghua Lake. The Huangji Lake has a long history and a collection of English. The magnificent Three Kingdoms culture, the Huaijun culture, the ancient sacred and the sacred; the long-standing religious culture is famous; the beautiful ecological culture is famous all over the world; the hot spring culture of healing and health care is full of East China. For thousands of years, there have been famous historical figures such as Wen Weng, Zhou Yu, Wang Fan, Wu Qiao and Huai Jun, including Wu Zancheng, Wu Changqing, Pan Dingxin, Ding Yuchang, Liu Bingzhen and the literary superstar Chen Shi. Huangpi Lake has beautiful scenery, numerous landscapes, and places of interest and historical sites. There are six scenes in the "Eight Scenes" of the Qijiang River of the Xiu Xiu Zhongling (Huangqi Xialian, Fengtai Qiuyue, Qingcao Fishing Fire, Yefu Qingyi, Xiuxi Spring, and the sound of water and rain) are distributed in the Huanghua Lake area. The beautiful scenery and scenic spots have been integrated into the “Suizhong Tourism Plate”, showing the vitality and vitality.

Technical requirements for quality of Huanghua Lake hairy crabs (Huangyi Lake River crab) 1. Eriocheir sinensis H. Milne-Edwards. Second, the growth environment is fresh and pollution-free, in line with the national fishery water quality standards, the water level can be controlled, the water depth is 0.8m to 1.2m in spring; the water depth is 1.5m to 2.0m in summer, which is conducive to the shelling growth of river crabs; water body transparency ≥ 60cm, pH 7.3 to 8.5, dissolved oxygen ≥ 6mg / L, soft mud layer ≤ 8cm, water grass coverage ≥ 70%, aquatic grass biomass wet weight ≥ 4500g / m2, benthic biomass ≥ 256.31g / m2. Third, aquaculture management 1. Crab species source: Hefei city-level crab breeding farms from the scope of production, tracking and purchase, to ensure that the source of the seed is authentic. 2. Breeding methods: Lake seine culture and pond culture in the area of ​​production. 3. Crab stocking: In the middle of February, stocking crabs with a specification of 120/kg to 200/kg are stocked at a density of 190 to 210/667m2 (mu). Do not prescribe precocious crab species. 4. Feeding: The vegetable bait is corn, wheat, bean cake, sweet potato, pumpkin, potato, various water plants, etc. The animal bait is small fish, snail, river otter and so on. 5. Environmental and safety requirements: Feeding environment, prevention and control of epidemic diseases must implement relevant national regulations and must not pollute the environment. IV. Fishing and holding 1. Fishing: The fishing time starts from the end of September, and the male crab size is ≥160g/only, and the female crab is ≥125g/only. 2. Holding: The captured crabs should be divided into male and female and set in the lake to set up the fence to be kept, or use cages to raise. V. Quality characteristics 1. Sensory features: green shell, white belly, golden claws, yellow hair, thick back; strong crab flavor, long crab fiber, fine and sweet meat. 2.

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Producers within the production area of ​​Huanghua Lake Hairy Crab (Huangyi Lake River Crab) may apply to the Quality and Technical Supervision Bureau of Qijiang County, Anhui Province for the use of the “Special Mark for Geographical Indication Products”, which shall be reviewed by the Anhui Provincial Bureau of Quality and Technical Supervision and reported to the General Administration of Quality Supervision and Inspection. Announced after approval. The testing organization of Huanghua Lake hairy crab (Huangyi Lake River Crab) is selected by the Anhui Provincial Bureau of Quality and Technical Supervision in the testing institutions that meet the qualification requirements.