1, spotted grouper
There are 8- 1 1 spines on the dorsal fin, and there are no black spots at the base, and there are 5 inconspicuous horizontal bands on the body side, and the spots are scattered on the body side and fins. It is a tropical pelagic fish, which likes to inhabit the bottom of rocky reefs and is a rare fish in the South China Sea. Fierce sex, meat-based, like to eat fish, shrimp, crabs, hungry and kill each other.
2. red grouper
Dorsal fin 16, there is a dark spot at the base of dorsal fin, with brown body, and many orange spots on head, body and odd fins (soaked specimens turn white). Temperate pelagic fish. Adult fish eat fish, shrimp and crabs. Androgyny, females mature first, and most of them mature sexually at the third age. When the body length is 23 1-295 mm, they change from female to male.
3. Green grouper
There are several orange-red spots on the lower part of the fish, and six dark brown vertical stripes on the side of the fish, with the widest interval between the third and fourth stripes; Only the caudal fin has spots. Warm water pelagic fish. Young fish feed on plankton, and adult fish feed on fish, shrimp and crab. Hermaphrodite, the female fish matures first, and the sex is reversed when the body length is 250-400 mm, and the male fish is fully mature at the age of 6 (individual 5).
4. Epinephelus obliquus
The body is slender, the head and back are brown, and the abdomen is white; There are countless orange-brown or reddish-brown dots in the middle of the head, body and fins; There are five irregular, intermittent black spots on the body, which diverge to the abdomen.
The first black spot is under the spine of the anterior dorsal fin, and the last black spot is on the caudal stalk; Two black spots are in the middle branchial lid, and the other 1-2 is at the junction of the second branchial lid and the middle branchial lid.