Red grouper, also known as red bass (yì), lattice fish, is a genus of groupers in the family Bassidae. It can reach a length of 40 cm and weighs 2 kg. It is widely distributed in the Indo-Pacific sea area, inhabiting rocky reefs or coral reefs at depths of 4-160 meters. It is also found in the South China Sea and Taiwan. Usually a small group of 10-15 live. It is a carnivorous fish with a fierce temperament, feeding on small fish and crustaceans.
The body is flattened on the side, the head is large, the mouth is large, slightly obliquely lobed, the front of the upper and lower jaws has small teeth, the teeth on both sides are finely pointed, and the eyes are large and protruding. The body is reddish-orange and has a wide transverse band of white-orange color on the side. The head is reddish-brown with multiple tangled white spots. The body is covered with tiny ctenophores. The tip of the dorsal fin has a black tip; the pectoral fin is rounded with a slight yellow band and longer than the ventral fin; and the caudal fin is truncated with a pale yellow end. The posterior edge of the anterior gill cap is serrated and the lower margin is smooth. The posterior margin of the gill cap has 3 flat spines.
Grouper is a genus of the grouper subfamily Of the order Bass in the order Bass. There are more than 60 species in this genus, and their color and size vary greatly from species to species. Mostly inhabit the bottom of the reef in the sea area, generally do not form large groups, can be caught all year round. Its flesh is beautiful, its nutritional value is high, and it is a valuable economic fish. Grouper hermaphrodite, females mature first, there is a phenomenon of sexual transformation, first female and then male: that is, in the life of the same fish, the young age is female, and gradually turns male with age.