Where do oysters come from? China is widely distributed, from Yalu River in the north to Hainan Island in the south, and oysters can be produced along the coast. Oysters are soft-shelled parasitic animals, especially those produced in the freshwater border of Yu Xian.

Dalian Bay, Jinjiang, Zhejiang, Fujian, Guangdong and other places have more wild oysters and more cultured oysters.

The south belongs to Zhanjiang, Guangdong.

As long as you go to eat, whether it's a big hotel or a small restaurant, whether it's a roadside stall or a vegetable market, it says "Zhanjiang Oyster"

Besides Zhanjiang, Guangxi and Yangjiang, oysters are also very good.

Why there are so many oysters in these places is mainly determined by the living habits of oysters:

Oysters have been living a fixed life since they attached themselves. Without fixed objects, they can't move, they can only open and close their shells. The left shell is fixed and only the right shell can be opened and closed. And rely on the right shell opening and closing movement for breathing, feeding, reproduction, excretion and other life activities. When encountering unfavorable environmental conditions, close the shell to tide over the difficulties. Crassostrea gigas is a kind of wide-temperature shellfish, which can survive in the water temperature of 0-32℃, and the optimum growth water temperature is 15-25℃. Its adaptability to salinity is also very wide, and it is distributed in the salinity range of 10-40 ‰, and the sea area with low salinity grows fast. Oysters mainly eat unicellular plankton and organic debris. There is no special rule in feeding. When the water temperature is 10-25℃, the feeding intensity is relatively weak during the breeding period.

In addition, 80% of the world's oysters are raised in China. A few days ago, Denmark was full of very hot oysters. Apart from oyster passports, importing really can't help them.