First, they can be easily distinguished from each other in appearance.

Oysters and scallops have two shells, while abalone is a monocoque mollusk with only one shell.

The two shells of scallop are symmetrical left and right, while the two shells of oyster are asymmetrical: generally, the left shell is slightly larger and concave, while the right shell is slightly smaller and flat.

Scallops are usually bright in color, while the shells of oysters and abalone are gray.

Second, the release status is different

Scallops are distributed worldwide, from intertidal zone to deep sea.

oysters are widely distributed in China, and can be produced along the coast, especially at the junction of salt and fresh water.

fish usually grow on the seabed with low water temperature, and their footprints are all over the Pacific Ocean, Atlantic Ocean and Indian Ocean.

Third, the health care value is different

Scallops can strengthen the spleen and stomach, maintain beauty and protect skin, and inhibit cancer and tumor. Scallops can effectively prevent cancer.

oysters have the effects of lowering cholesterol and improving sexual performance.

Abalone is rich in protein, with high nutritional value. Its shell can be used as medicine, and it is called concha Haliotidis in Chinese medicine.

Extended information

Oysters, also known as oysters, are marine shells. It is suitable for oyster cultivation in subtropical and tropical coastal areas, and it is widely distributed in China. Oysters can be produced along the coast from Yalu River in the north to Hainan Island in the south. Oysters are soft-shelled, parasitic animals, especially those produced at the junction of salt and fresh water. Meat can be eaten and oyster sauce can be made. Meat, shell and oil can be used as medicine, also called oyster or oyster.

2. Scallop, a marine bivalve mollusk. There are about 5 genera and subgenera, and more than 4 species. Worldwide distribution, found in intertidal zone to deep sea. Scallop has two shells, almost equal in size, and the shell surface is generally purple brown, light brown, yellowish brown, reddish brown, apricot yellow, grayish white and so on.

3. Abalone, which is called fish, is actually not a fish. It belongs to primitive marine shellfish and single-shell mollusk. Because it is shaped like a human ear, it is also called "Sea-ear". Abalone usually grows on the seabed with low water temperature, and its footprints are all over the Pacific Ocean, Atlantic Ocean and Indian Ocean.

reference:

scallop _ Baidu encyclopedia

oyster _ Baidu encyclopedia

abalone _ Baidu encyclopedia.