Dongxia Hanged Razor Clam is a geographical indication certification trademark.

Yunxiao County is located on the southeast coast and has a south subtropical maritime monsoon climate. It has spring all year round, sufficient sunlight, and a pleasant climate. It has a well-developed water system, abundant fresh water, and rich marine fishery resources. It is rich in mud clams and A. serrata. High-quality aquatic products such as crabs, clams, and razor clams.

According to the "Yunxiao County Chronicle", Yunxiao County has 188,100 acres of fresh water and inland sea water, of which 109,500 acres are available for farming, 99,900 acres of inland sea water with a depth of less than 10 meters, and 3.4 tidal flats. million acres, mainly located in Zhangjiang Bay and Dongshan Bay sea areas.

The Zhangjiang Bay tidal flat is located at the intersection of the river and the sea. It is located in the southeast of the county. It is the confluence of the Zhangjiang River and its tributaries. At the center of Dongxia Town, the sea area is olive-shaped with a large belly. It is small and has smooth tidal flow. The rainwater collection area of ??the upstream river is 867.21 square kilometers. The aquatic products are moderately salty and of excellent quality. There are 2,360 hectares of national protected plants in the basin - mangroves. The mangroves have the ability to conserve soil and water and maintain ecological diversity. It has the special function of naturally purifying seawater quality. According to surveys, there are 33 species of phytoplankton such as various single-spored algae and 7 categories of 33 species of zooplankton living in this area. The nutrient content of seawater is very sufficient; in Zhangjiang Bay, there are 2 tides every day , when the tide goes out, a large amount of mud flats can be exposed. They are exposed to the sun and absorb sunlight, promote photosynthesis, accelerate the growth of animals and plants, and improve the quality of the products, so that the aquatic products here have the characteristics of crisp and tender meat.

During the Qing Dynasty and the Republic of China, Dongxia's constricted razor clams were already a Yunxiao specialty and famous aquatic product, well-known in coastal counties in Fujian and Guangdong, as well as in Hong Kong and Macao. Dongxia constricted razor clam has excellent varieties and a high survival rate after introduction. Its shells are crisp, thin and oblong and square in shape, narrow and as long as the middle finger. It is delicious, nutritious and moderately salty. It has neither salty smell nor fresh water smell. Mud air. It has the functions of nourishing yin, clearing away heat, removing troubles, and detoxifying alcohol.

After the founding of the People's Republic of China, Dongxia's razor clam production has gone through the production process of private ownership, collectivization, consortia, and individuals. After 1984, the joint production contract responsibility system was implemented, which led to the rapid development of Dongxia's razor clam production. The breeding areas include Wutian, Hedong, Hezhong, Hexi, Xitang, Shipyard, and Dongxia Town in Dongxia Town. There are 15 administrative villages and one town-run farm including Zhoudu, Jiazhou, Baita, Daiyang, Zhuta, Dongqi, Huqiu and Changyang.

Dongxia constricted razor clam

Yunxiao County Crop Science Research Institute

10737564

Consecrated razor clam (live)