1, Spanish mackerel, also known as mackerel, has sharp teeth and swims fast and fiercely. Generally, it is 0.26-0.52m long, up to 1 m long and weighs 20kg. Distributed in the western North Pacific Ocean, found in Bohai Sea, Yellow Sea and East China Sea. This is a warm pelagic fish. 2, small yellow croaker Small yellow croaker is a kind of warm bottom fish. Generally inhabiting soft mud or muddy sea area, its vertical movement will enter the estuary area. Hate strong light, like turbid water, rise at dusk, set at dawn, and often live at or near the bottom of the water during the day. The main food is planktonic crustaceans, which are distributed in the Bohai Sea, the East China Sea and the southern Yellow Sea in China, and in the East China Sea in winter. The nutritional value of small yellow croaker is extremely high, and there are no small thorns in garlic, which is very suitable for children and the elderly. At the same time, the price is also very cheap Frozen small yellow croaker can generally be bought for a few dollars 1 kg. 3, hairtail hairtail is also called swordfish, fierce. Qingdao and Rizhao coastal cities in the Yellow Sea are called bream. Hairtail is flat as a ribbon, silver-gray, with a big tip and tapering towards the tail. Its height is twice that of the head, and its total length is about 1 m.. It is fierce and mainly feeds on shrimp and squid. It is mainly distributed in the Yellow Sea, the East China Sea and the Bohai Sea in China all the way to the South China Sea, and it is also known as the product of China's four seas with large yellow croaker, small yellow croaker and squid. Hairtail fish is rich in nutrients, fat, protein, vitamin A, unsaturated fatty acids and other trace elements, and the contents of DHA and EPA are higher than those of freshwater fish. Its meat is delicate and has no muddy smell. Whether it is fresh hairtail or frozen hairtail, it is easy to process and can be matched with a variety of ingredients. Common practices include stewing, steaming, frying, steaming and stewing, as well as dry pots, hot pots and a variety of western and Japanese dishes. Fish is easy to digest, and it is a home-cooked dish suitable for all ages in Xian Yi. The main price is cheap. 4. Sandfly, whose scientific name is clam, is a common benthic economic shellfish in China's coastal areas. This meat is delicious and nutritious. The shell is thick and slightly quadrangular. The two shells are extremely inflated. The top of the shell protrudes slightly in front of the center of the back edge, and the tip bends forward. Shells have a skin, the top is white, the larvae are lavender, and the belly edge is yellow-brown. White clams are delicious and cheap whether fried, steamed or barbecued. Usually a few dollars can buy a catty. 5. Meretrix meretrix is a common shellfish product in the market, which is widely distributed in the north and south seas of China. Rapid growth, short breeding cycle, strong adaptability and long survival time out of water. It is an excellent shellfish suitable for artificial high-density culture and one of the four major cultured shellfish in China. People in Qingdao fry clams very spicy. Drinking beer and eating clams is delicious. Compared with white clams, clams are cheaper and more affordable. 6. Scorpion Scorpion is a mollusk with a rectangular shell and a light brown color. It lives in coastal mud and tastes delicious. Can be paired with cold dishes, which is delicious with summer meals. People in Putian, Fuzhou, Quanzhou, Fuqing and surrounding areas in Fujian like to eat dried razor clam. Xiamen people are used to cooking salty rice and hot pot. Zizania latifolia is a nutritious food, which is rich in protein, calcium, magnesium, iron, selenium, vitamin A and other nutrients. At the same time, the price of razor clam is very affordable, generally floating around 20 yuan. Compared with pigs, cattle and mutton, razor clam is much cheaper.