Portunus Donggang

Portunus trituberculatus, commonly known as Portunus trituberculatus and White Crab, belongs to crustacea, Decapoda and Portunus. Portunus usually lives and breeds at the bottom of 3~5 meters, and migrates to the deep sea of 10~30 meters in winter, and likes to burrow at the bottom of sediment. Its adaptive salinity is 16‰~35‰, pH value is 7~9, optimum salinity is 26 ‰ ~ 32 ‰, and optimum temperature is 22℃~28℃. The water quality requires fresh and high dissolved oxygen. When the environment is not suitable or the shelling is not complete, there is a phenomenon of self-cutting, and the foot can be regenerated after being cut off. The swimming season of Portunus trituberculatus is twice a year in spring and autumn, with high yield, large body and rich nutrition, especially in ovary and liver. Ovary can be used as a superior condiment. In addition to fresh meat, it can also be canned and sold well at home and abroad. Shell can be used as medicine and chitin can be extracted, which is widely used in many industries. Portunus is the most robust individual in the winter migration season, generally weighing about 250 grams, up to more than 500 grams. The female crab red paste is covered and tastes excellent. Portunus crab can be eaten fresh, steamed, fried, or fried, or stewed with bean paste in half, or fried with crab for rice cakes, pickles and tofu, which is a common dish on the table of residents in coastal areas. It can also be pickled, that is, fresh Portunus trituberculatus is soaked in bittern, and can be eaten after a few days, commonly known as "fresh wind choking crab". In the past, because of the high output of Portunus trituberculatus, fishermen often chose live crabs filled with paste, put yellow into bowls, and let them solidify in the wind, wind and sun, which became a "crab yellow cake" with excellent flavor. Portunus trituberculatus growing in the Yellow Sea of Donggang has a long cycle because of its low water temperature, and its meat quality is more delicious than that of other sea areas and cultured Portunus trituberculatus. It enjoys a good reputation at home and abroad and has been exported to Japan, South Korea and other countries for a long time. Since 2009, more than 2,500 tons of Portunus trituberculatus have been exported from Donggang, with a value of US$ 20.76 million. Portunus Donggang donggang city Yellow Sea Aquatic Products Industry Association The Yalujiangkou Fishing Ground and Yuanshan Fishing Ground in the north of the Yellow Sea include 18 fishing areas, 19 fishing areas, 2, 3, 6 communities of 32 fishing areas and 33 fishing areas. The geographical coordinates are 39 47 ′ 04 ″ north latitude, 123 30 ′ 57 ″ east longitude, 124 00 ′ 00 ″ east longitude and 39 00 ′ 00 ″ north latitude in the west boundary. The north boundary is along the land, and the east and south boundaries are on the China side of the maritime boundary between China and North Korea. Portunus Donggang is a geographical indication protection product. Portunus Donggang is a geographical indication certification trademark. Portunus Donggang is a geographical indication product of agricultural products.
Reprinted with attribution： https://cnlocality.com/(Chinese Specialty Products)