There are 163 species of grouper***, belonging to the _family_ (Serranidae) of the order Perciformes (Perciformes), which is a warm-water offshore demersal valuable fish. Its meat is fat and tender, rich in nutrients, highly acclaimed, and is regarded as a superior delicacy, in short supply. In the coastal areas of China, grouper is one of the important cultured fish and exported for foreign exchange.

There are many kinds of grouper, including red-spotted grouper, green grouper, jeweled grouper, point-banded grouper, red-spotted grouper, red-brown grouper, longitudinal-banded grouper, clouded grouper, electric grouper, reticulated grouper, black-bordered grouper, black grouper and so on. The size, color, and habits of each grouper species may vary.

The above is only a brief introduction, if you need to know more about grouper, we suggest you to read related marine biology books or consult professionals.