This difference is obvious. Oysters are bigger than oysters. A larger oyster with a shell can weigh more than a kilo, which can be said to be a monster, while the oyster is only about 2 ounces, which is very different in size.

2. Different tastes

Oysters are big, so they have more meat, thicker and fuller, and taste better than oysters, but oysters don't have that much meat and are not as delicious as oysters.

3. Differences in distribution

Oysters are generally distributed in intertidal and subtidal waters with water depth less than 10 m. At present, the cultured oysters generally live in the sea area with a water depth of more than 8 meters, especially in the cold and salty sea water, the more delicious they taste.

4. Different growing environments

Oysters generally live at the intersection of rare rivers and the sea, on the shallow sea of the inner bay, which is half salty and half light, because of the limited growth environment, the output is very small; There are about 20 species of oysters from Bohai Sea and Yellow Sea to Nansha Islands in China.