In the history of the Shiji Lake crab, it has been called “Huajin Crab” and is one of the three famous Chinese crabs. It has a long history and is in the famous book “Dangtu Range Rover” for the culture, famous products and delicacies of Dangtu County. There is a historical legend of "Bizhu crab wine". According to legend, the famous scholar of the Eastern Jin Dynasty Bi Zhuo "has gotten hundreds of boats, and has two heads at the time. The right hand holds the wine glass, the left hand holds the crab claws, and the float boat is in the boat." lifetime".

Tang Yanqian, a late Tang poet, once wrote in the praise of the Shiji Lake crab poem: "Hutian October cleansing cream, late rice early spring crab like tiger. Plate rafting to take more games, picking the water side of the goods". Depicting the late autumn season, it is the peak season for catching crabs. The lakeside lake with a fragrant flower is busy with the “plate trawl” and enjoys a bumper harvest. The big crab, which is only "like a tiger", is being loaded into the raft. The poem is filled with the life of the Jiangnan water town and the praise of the Shihu Lake crab. Dangtu County Zhizhao: "When the domestic aquatic crabs are painted, there are lake crabs, river crabs, and river crabs. The flower lake is near the lake in Busan, and the golden feet are red and beautiful. The Emperor Qianlong of the Qing Dynasty is under the south of the Yangtze River. For the king of the crab. The old county magistrate used to make tributes for the tribute, each one pound is very strange." The Shiji Lake crab has obvious characteristics of golden color of claws and brown hair of the feet. It is rich in flesh, rich in fat and fat, delicious in meat and delicious in nutrition. It is a rare treasure in Chinese freshwater products. When the crab is registered with the "Shijie Lake" brand, it is famous for its large-scale farming and high yield. It is famous for its golden claws and high quality. The "Shijie Lake" crabs mainly have the following three types of culture: one is the natural lake seine culture, mainly in Shiji Lake. Because the lake is a large Tongjiang lake, close to the foot of Busan, the water quality is fresh, the water is flourishing, the natural bait resources in the lake are abundant, and the water quality is the national water quality standard. Therefore, the crab produced has the characteristics of golden color and brown hair. The average size is 200g/only. This kind of crab is the treasure of "Shijie Lake" brand crab; the second is the large-scale continuous pond (rice field) ecological breeding, mainly from Danyang Lake to Nanbei and Huyang. Due to the historical construction of the lake, the waters are closely related to the natural lakes of Shiji Lake and Guxi River. The water source is abundant and the water quality is fresh. Most of the crabs have been standardized and cultured. Therefore, the crabs produced are golden in color and close in meat quality. The average size is 150 g / more. The third is the large-scale river ditch block net breeding, mainly based on the natural river ditch that is criss-crossed in the Dagong. This kind of water area is connected by the ditch and is connected with the river by the sluice gate. The water body has good fluidity, more water plants, rich dissolved oxygen in the water, no industrial pollution, and fresh water. Therefore, the crab produced has a green back and a white umbilical cord. The characteristics of the golden feet and red hairs are as high as 150 g / more. The scope of regional protection is from the mouth of the upstream of Shiji Lake in the administrative area of ​​the townships of Hubei Province, such as Lake Township, Bowang Town, Xinshi Town, Datun Township, Tangnan Town and Wuxi Town, to the downstream control section. The waters, as well as the river forks, tidal flats and low-lying areas connected to the waters of the section. Geographical Features Shihu Lake is a place where rivers and lakes meet, which is the evolution of the ancient Danyang Lake. Into the lake water system is the Yangtze River tributary Shuiyang River, Qingge River confluence, from the Tanggou River. The effluent flows back to the Yangtze River through the Sancha River, Yunliang River and Guxi River, and the other water flows into the Yangtze River through the Qinhuai River. Shijiu Lake is an important lake in the Yangtze River system. It is located in the lower reaches of the Yangtze River. It is located in the eastern part of Dangtu County and has an area of ​​160,000 mu. It is an important wetland in the middle and lower reaches of the Yangtze River. Shijiu Lake has a subtropical humid monsoon climate with four distinct seasons and superior light and hot water conditions. The lake water is fresh, the water quality is the national Class II water quality standard, the water plants are flourishing, the bottom of the lake is muddy bottom, the aquatic plants and plants such as water grass and snails are very rich, and they have good conditions for river crab culture. A long time ago, Shijiu Lake was not a lake here, but surrounded by mountains and cliffs. Due to the movement of the earth's crust, the landslides have turned into a large lake with white waves. What does this have to do with crabs? The key to its subtlety is the mud at the bottom of the lake. The bottom of the lake is at the bottom of the lake, and it is like terracotta, and it is combined with yellow sand and yellow mud. The bottom of the lake is hard and the habit of the crab is good, and its feet are in the hard soil. The honed claws are golden yellow, and the feet are brown-red gold feet and red claws. This is also the origin of the Shiji Lake crab known as "golden feet red hair". The waters of the Yangtze River are collected in the lower reaches of Shijiu Lake, and then the river runs downstream. The crabs crawl in the water, and the waters of Shiji Lake are lush. The snails, small fish and shrimps increase, the crabs are full, and they survive in the wind and the waves. It enhances the body's claw strength, the shell is hard, and it has a fierce unique habit. It is only strong, strong, wild, like a fierce tiger, claws and claws, full of enthusiasm, light and lovely. The history of human history "Dangtu County" contains: "When the domestic aquatic crabs are painted, there are lake crabs, river crabs, river crabs. Huajin Busan near the lake, golden feet red hair is particularly fat. Qing Emperor Qianlong under the Jiangnan, eat it Taste, the royal seal is the king of the crab. The old county magistrate used to make tributes for the tribute, each one pound is so strange. “Busan near the lake” refers to the Shiji Lake near Busan. It can be seen that the Shiji Lake crab was a court tribute during the Qianlong period and was appreciated by the Emperor Qianlong. In 1976, when US President Nixon visited China, the state banquet was eaten with the Dendrobium Lake crab. In the 1980s, Dangtu County Huajin Drunk Crab Factory used the “Shijie Lake Crab” as the raw material, and adopted the ancestral secret of Jiangsu “Tongde Drunken Crab”, which was awarded the Gold Medal of the Southeast Asia Universal Exposition in the 1940s, and added scientific formula. Developed as "Huajin drunk crab", this dish is praised by users at home and abroad for its new, exotic, special, color and fragrance characteristics. It is a traditional dish of Dangtuo, which is made from the squid belly of the Yangtze River and the Dangtu Lake crab. It is a traditional dish of Dangtu. The fish belly absorbs the taste of crab and is very delicious. The dish was incorporated in 1987. "Chinese Recipes and Anhui Branch" was compiled into "Chinese Famous Cuisine and Anhui Flavor" in 1988. It is currently the main famous dish in the middle and lower reaches of the Yangtze River.

Technical requirements for quality of Shiji Lake crabs (1) Sources. Eriocheir sinensis in the Yangtze River system. (2) Cultivation of crab seedlings. The parents are mainly selected from the parent base of the Shiji Lake water system; the large-eyed larvae are produced by the Yangtze River estuary crab breeding farm that meets the conditions of the seedlings of Eriocheir sinensis; the first-aged crab species are cultivated from the water of the Shiji Lake or the crab breeding base of the water system It is made from 100/kg to 160/kg. (3) Water quality requirements. The water quality is fresh and pollution-free, and meets the requirements of fishery water quality standards, including pH 7.2 to 8.5, water dissolved oxygen content of 5 mg/L or more, water temperature of 8 ° C to 33 ° C, water depth of 1.2 m to 2.5 m, and transparency of not less than 40 cm. (4) Culture technology. 1. Breeding cycle: from the seedlings to the commercial crabs, the continuous feeding time within the protected area shall not be less than 220 days. 2. Crab stocking: The seedlings are placed before the end of March each year. The specifications are 100 to 160/kg crabs, and the stocking density is 400 to 600/667m2 (mu). Try to stock the same batch of seedlings of the same specification, put the foot at a time, and at the same time raise the appropriate amount of squid, green prawn, yellow and white scorpion. 3. Feeding management: Before the Ching Ming Festival, put the right amount of live screws in the same water system to replenish the aquatic plants such as goldfish, spirulina and other crabs to improve the water environment. During the growth of crabs, when natural bait is lacking, plant bait such as pumpkin, corn, wheat, sweet potato, potato, and water grass, and animal bait such as small fish, snails and river otters can be properly fed. It is strictly forbidden to use nationally banned inputs. Products and disease prevention measures. 4. Fishing: The time of arrest is from mid-September to around the Spring Festival. The fishing is mainly based on cages, supplemented by wire mesh, nets and light trapping. The listed crabs have a male crab size of ≥150 g/only and a female crab of ≥125 g/only. 5. Environmental and safety requirements: The prevention and control of the breeding environment and epidemic diseases must comply with relevant national regulations and must not pollute the environment. (5) Quality characteristics. 1. Sensory features: silk is clear and clean. The crab is thick, lively and responsive. The cream is full, the meat is tender, and the taste is sweet and slightly sweet. 2. Physical and chemical indicators: crude protein of male crab ≥ 15.5%, crude fat ≥ 8.8%; crude protein of female crab ≥ 17.8%, crude fat ≥ 9.5%. 3. Safety requirements: Product safety indicators must meet the relevant regulations of the state for similar products.

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Producers within the scope of protection of the Shiji Lake crab geographical indication product can submit an application for the use of the “Special Mark for Geographical Indication Products” to the Quality and Technical Supervision Bureau of Dangtu County, Anhui Province, which is reviewed by the Anhui Provincial Bureau of Quality and Technical Supervision and is subject to national quality inspection. The General Administration announced the approval. The statutory testing agency for the Shihu Lake crab is designated by the Anhui Provincial Bureau of Quality and Technical Supervision.