Wanning City is located in the southeast of Hainan Island, with blue sky and blue sky and white sand beach. It is the first choice for tourism and holiday, and it is a seafood gourmet paradise. The most famous one is the music crab. Its shell is hard, the meat is full of fat, and its grease is golden and bright, and its fragrance is tangy. Those who have tasted the crabs are hard to forget the happiness and happiness brought by the impeccable freshness.

Geographical Environment Wanning City is located in the southeast of Hainan Island. It is a blue sky, blue sky, green mountains and green beaches, forming a natural air purification barrier and an epidemic barrier. It is a unique and pollution-free high-quality ecological area in China's seas. Wanning City has a coastline of 109 kilometers, with a sea area of ​​2550.1 square kilometers, 14.1 square kilometers along the beach, and two inner seas with a total area of ​​57.5 square kilometers - Gangbei Xiaohai and Laoyehai, which are rich in crabs. Seafoods such as Gangbei prawn and Hou'an carp are rare natural treasures on the island. It is shaped like a big gourd. It is narrow and wide at the front, and leads to the sea. There is a port at the exit. From Hong Kong Gate to the east of Chaogang Village in Hou'an Town, there is a main port road and several branch roads. The trend of the main port road is urgent. It is a must for crabs, fish and shrimps to enter and exit the port. The main port road is shoal on both sides. After the summer tide, the shoal is exposed. The beaches grow dense seaweed for many years. The tidal level is higher in the autumn and winter seasons, and even the water level in the shoals has a waist-deep depth. In the cold winter, fish, shrimp and crab like to shoal on the shoal for food. The end of the main port is connected to the ocean. The water surface is wide, with an average depth of 2 meters. The trend is gentle and calm. It is an excellent sea area for aquarium reproduction. In the western coastal areas, there are rivers such as the Longtou River, the Sun River, the Hou'an Flood Diversion, and the Lezhigang River. The seawater is brackish and semi-light, causing plants such as seaweed to rot and deposit the seabed, bringing abundant food to the fish, shrimp and crab. Wanning City has a tropical monsoon maritime climate. The seasons are like spring, the sunshine is sufficient, the rainfall is moderate, and the air is humid. The annual average temperature in the coastal area is about 24.5 °C, and the coldest average temperature is 18.7 °C. The hottest average. The temperature is 28.5 °C, the annual average sunshine hours is about 2210.8 hours, the annual sunshine percentage is 50%~60%, the annual average rainfall is about 2085 mm, the rainfall concentration period is from April to November, and the annual average wind speed is 2 - 4 m / s, this unique climatic conditions, very suitable for the crab farming. Hele crab is produced in Xiaohai and Laoyehai in Gangbei, and its water quality is excellent. The small sea in Gangbei is a gourd-shaped lagoon-type inner bay. The bay mouth is narrow, the shoreline is curved, the beach is wide, the west is connected to the Sun River, the Longshou River and the Longwei River, and the south is connected to the South China Sea. The bay has moderate salinity, fertile water, rich bait, and annual average. The water temperature is 25 °C, the coldest month average temperature is 16.7 °C, the hottest month is 27.5 °C; the pH is 8.1~8.3, and the annual average salinity varies from 13 to 27, and the dissolved oxygen content is rich. The crabs that grow here are naturally tender and tender, and the eggs are full of creams. They are unique and make the Hele Crab a natural and famous food in Hainan. The cultural background and music is a town in Wanning. Her name means “Heaven and earth, peace and happiness”. It is said that during the Tang Dynasty, the fishermen from Hele Village, who moved from Pudong, Fujian Province, to the west of Xiaohai, are specializing in making crabs. The net captures fat crabs in a long and wide bay river fork in Gangbei. Because of its unique flavor, it is called “Hele Crab”. Hele Crab is a local fine seafood variety in Hainan Province. It is a traditional brand-name product. It has the characteristics of tender body, tender taste, egg-filled fat, and good nutrition. It is unique in fragrance, fresh, tender and crisp. One of the "Four Famous Cuisine" is the same as Wenchang Chicken and East Goat. It has been famous for more than a thousand years in the history of Chinese and foreign food culture. It has long enjoyed a good reputation in the Tang Dynasty. Since ancient times, Hele Crab has been the official residence of the place of origin and the hospitality of the people. It has been listed as a “tribute” tribute court. According to legend, during the Qing Dynasty, there was a story of "Tang Li sent crabs." During the reign of Emperor Kangxi of the Qing Dynasty, the bureaucrats of Qiongzhou (Hainan) all tribute to Hainan traditional high-quality specialty to the court officials, Wanzhou (Wanning) Zhixian dispatcher (Tang Li) put Wanzhou (Wanning) seafood famous specialty one and Le fat crab with earthenware The crab, the tribute to the imperial court officials, and the court officials who tasted the music and crabs, are full of praise, saying that "and the fat crab is also a treasure of aquatic products." Cultural accumulation Traditional customs and habits Most of the local fishermen make a living by fishing. They use simple “roll fishing” crab-catching tools to catch fat crabs and sell them to subsidize households. Because the music crab is very popular, the local people are warm and hospitable, and in order to meet the needs of life and their own home, many families have the tradition and habit of supporting and enjoying crabs. In order to meet the needs of the market and develop the local economy, local fishermen used to raise in the small sea of ​​Gangbei, and then excavated the pond culture until they explored the scientific breeding method of “shrimp and crab polyculture”, which not only consolidates the original excellent characteristics and varieties of the crab. And increased production. Since ancient times, Wanning people have liked natural, wild and pollution-free seafood products, and used Hele Crab as a festive food to enrich the festive atmosphere, especially in towns and villages. Every wedding, birthday and folk traditional festivals are treated with self-supporting and happy crabs. Wanning is also a famous overseas Chinese hometown in Hainan. Overseas Chinese who have returned to their hometowns to visit relatives like to make a special trip to Hele to buy and enjoy the fat crab as a gift to bring back to friends and relatives for tasting. Wanning is a tourist resort. Chinese and foreign tourists come and go very close, tasting and music crab is an important part of their visit to Wanning. These customs and habits have enabled the rapid development of Hele Crab in the farming industry in the villages and towns of Wanning, Beihai, and Laoyehai.

Hele Crab quality technical requirements (a) source. Serratus blue crab, Scylla serrata (Forskal). (2) Aquaculture environmental conditions. 1. Natural water environment conditions: the sediment of the bay is clay or sandy loam, the water temperature varies from 15 °C to 32 °C, the salinity varies from 5 to 30, the water pH is 7.5 to 8.5, the chemical oxygen demand is ≤25 mg/L, dissolved oxygen The content is ≥2.5mg/L, and the transparency is ≥50cm. 2. Environmental conditions for pond culture: The bottom of the pond is clay or sandy loam. There are anti-escape facilities on the bank, and the slope is 1:2. The water temperature varies from 15 °C to 32 °C, the salinity varies from 5 to 30, the aquaculture water has a pH of 7.5 to 9.0, the chemical oxygen demand is ≥2.5 mg/L, and the transparency is 30 cm to 50 cm. (3) Feeding management. 1. Seed source: wildly caught wild seed or artificially propagated seed. 2. Farming mode: single or polyculture. 3. Breeding density: single raising ≤22500 per hectare, polyculture ≤15000 per hectare. 4. Feed: artificial compound feed or low value shellfish, small fish. Beginning 20 days before the sale, feed animal feed such as low-value shellfish or small fish, strengthen nutrition and promote long-term fattening. 5. Disease prevention and control: (1) Dredging and disinfection of crab ponds: Before the stocking, the crab ponds are strictly sun-bathed and dredged, and 1500 kg of quicklime is applied per hectare to improve the sediment; and a small amount of water is injected to submerge the bottom of the pond, and is applied per hectare. 300 kg of bleaching powder is immersed and disinfected to kill pathogens and harmful organisms at the bottom of the pool. (2) stocking healthy high-quality seedlings; (3) feeding high-quality feed; (4) regularly using micro-ecological preparations and water quality improvers, improving the breeding environment through appropriate measures such as water exchange and mechanical aeration, and maintaining the water quality of the culture, The substrate is relatively stable. (5) In the seasons with high temperature and heavy rain, try to keep the water temperature and salinity of the aquaculture water within the appropriate range of variation; (6) find that the diseased crab body should be fished out in time to find the cause, and use 2×10-6 The bleaching powder is splashed throughout the pool. (4) Product quality characteristics. 1. Sensory characteristics: The back of the crab body is blue-green, the belly is white or yellowish, the shell is hard and shiny, the appendage is intact, the carapace is not ulcerated, the reaction is sensitive, and the activity is strong. Male crab weight ≥ 200 grams, muscle fullness, fullness ≥ 0.40; female crab weight ≥ 150 grams, muscle rich, ovarian full orange red, fatness ≥ 0.30. 2. Physical and chemical indicators: project protein fat ash moisture female Crab ≥%14.50.451.480.0 male crab ≥%12.50.251.482.0

Apply to：
Producers within the scope of the protection of the geographical indication products of Hele Crab may apply to the Hainan Entry-Exit Inspection and Quarantine Bureau for the use of the “Special Mark for Geographical Indication Products”, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.