1, clams, mostly inhabit the middle and lower part of the intertidal zone and the shallow sea bottom within 100 m, and a few can live in the deep sea above 100 m and live in caves. Clam animals have high economic value, tender and delicious meat and rich nutrition, and are also the main species of beach culture in China.

2. The main nutritional component of scallop and its edible parts is protein, which is similar to fish and shrimp. Except for a few species, most of them live in the shallow sea from low tide zone to hundreds of meters, live freely, and mainly feed on ephemera algae.

3. Shrimp, including Antarctic red shrimp, green shrimp, river shrimp, grass shrimp, prawn, prawn and lobster. Shrimp has high nutritional value for dietotherapy and can be steamed or fried.

There are many kinds of crabs. There are about 600 kinds of crabs in China, including swimming crab, blue crab, frog crab and Guan Gong crab. Because of different geographical locations, there are also grades. The first category is lake crab, such as Yangcheng Lake and Jiaxing Lake; The second category is river crabs, such as Jiujiang and Wuhu; The third category is river crabs; The fourth category is crabs; The fifth category is the ditch crab; The sixth category is sea crabs.

5. Oyster is the largest cultured shellfish in the world, one of the important marine biological resources available to human beings, and a globally distributed species. Oysters are not only delicious, but also nutritious.