Shrimp skin and Xishigu, which are produced in two towns, grow in Haizhou Bay between Baima Estuary and Liangcheng River at the mouth of the Yellow Sea, adjacent to Huangjiatang Bay, which is rich in fish and shrimp in the east, with fresh water quality, flat shallow seabed, vast sandy seabed, broad and deep, and are "National conservation zone for Xishigu germplasm" and "Provincial conservation zone for Japanese crested crab germplasm", and adjacent to Rizhao coastal country in the south. The shrimp skin here is very small, which is 1/3 of that of ordinary shrimp skin, but it is full and even, rich in protein, minerals, especially calcium, and is known as the "calcium bank". "Pushing shrimp on stilts" is a unique way of catching shrimp for offshore fishermen. Xi Shi's tongue is large, with a thin and smooth shell, an axe-foot-shaped flat tongue, white as jade, tender and plump meat, crisp and delicious, and delicious. Protein of Xishi Tongue contains 18 kinds of coded amino acids, including all 8 essential amino acids needed by human body. Xishi Tongue also has the functions of clearing away heat, promoting diuresis, nourishing yin, resolving phlegm, and inducing diuresis. It has a remarkable effect in adjuvant treatment of diabetes, and it is a precious shellfish with both food and medicine.

Rizhao Sole is a very precious marine shellfish, with large body and well-developed foot muscles. The two shells are folded in a bamboo tube shape, the shell is thin and crisp, the shell surface is smooth, the meat is plump and tender, and the soup is white. It is the best among Sole Sole and an important local specialty in our city.

the geographical indication of the agricultural products of Solenopsis gigantea in Rizhao city is located in the coastal waters from the estuary of Liangcheng to the estuary of Xiuzhen in Rizhao city, with a sea area of 34 55 ′ ~ 35 35 ′ 37.743 ″ north latitude and 119 17 ′ 51.4 ″ ~ 119 41 ′ 51.888 ″ east longitude, covering an area of 16, hectares. Among them, there are 4,288 hectares of conservation zone, a state-level aquatic germplasm of Solenopsis grandis in Haizhou Bay. There are about 16 fishing boats in this area, with an annual output of more than 1 tons. External sensory characteristics: Solenopsis Rizhao is a very precious bivalve shellfish in Rizhao coastal waters, belonging to Mollusca, Lamellibranchia, Eupetabranchia, Dentistra, and Solenopsidae, which often inhabits the middle and lower intertidal zone and shallow sea sediments. Its individual hypertrophy, foot muscles are particularly developed. The growth line is obvious, and it is arranged along the rear edge and abdomen edge. The two shells are folded into a bamboo tube shape, and the adult shell is 12 ~ 14 cm long, which is generally 4-5 times the height of the shell. The shell is thin and crisp, the shell surface is smooth, and the shell is yellowish brown. The inside of the shell is white or slightly purple, and the reddish color band can be seen. 2. Internal quality index: Rizhao Sole is one of Rizhao's seafood treasures, and it has become the best among Sole because of its delicious taste, tender meat and rich nutritional value. Protein is 12 ~ 14g/1g in the meat of Sinocalamus giganteus in Rizhao.

Penaeus orientalis in Rizhao, also known as China Penaeus, has the local characteristics of large size, flat body, thin, smooth and transparent shell, thick meat, delicious meat, unique flavor, high quality and so on, ranking first among the "eight treasures" of seafood, which is the characteristic and advantageous industry of fishery economy in our city.

Rizhao is a water-rich area along the northern coast of China, with abundant fresh water resources, large shallow sea and coastal beaches, and nearly 1 species of fish in the offshore. It is one of the four aquatic product fry breeding centers in China.

Penaeus orientalis, also known as China Penaeus orientalis, is the dominant aquatic product in Rizhao city. Rizhao City is the birthplace of prawn breeding and breeding in China, with the only original breeding farm of Penaeus orientalis in China and one of the only two experimental stations of national shrimp industrial technology system in Shandong Province. In 211, Rizhao Penaeus orientalis was recognized as a geographical indication protection product of agricultural products by the Ministry of Agriculture. For more than 3 years, Rizhao City has supported the national shrimp culture industry in terms of the supply of larvae and culture technology of oriental shrimp. Among them, the shrimp culture and seedling raising in Taoluo Town of Rizhao International Ocean City is at the forefront of the city, providing 2 billion nauplii and 2 billion larvae of shrimp to the coastal areas of the country every year, with an annual output of 5 tons of cultured shrimp, which has made outstanding contributions to increasing fishermen's income, promoting the prosperity of fishing areas and improving the quality of life of the people.

The meat of Penaeus orientalis is tender and delicious, and it is rich in nutrition. It is also beneficial to tonifying kidney and strengthening yang, nourishing yin and strengthening stomach. It has certain curative effect on impotence, muscle and bone pain, tetany, itching all over the body, skin ulcer and so on. Shrimp shell has dietotherapy effect on neurasthenia, head sore and scabies. The Penaeus orientalis cultured in Rizhao has the local characteristics of large size, flat body, thin and smooth shell, thick meat, delicious meat, unique flavor and high quality, and is the highest shrimp, which is the characteristic and advantageous industry of fishery economy in Rizhao City.