Its appearance is characterized by a long oval body, narrow eye spacing, about half of the eye diameter, big mouth, slightly inclined terminal position, slightly shorter jaw than upper jaw, well-developed hard spines on dorsal fin, shallow recesses on hard spines and soft strips, nearly pentagonal pectoral fin, truncated tail, reddish body color, and yellowish abdomen with deepening depth ~
It is benthic near the coast, living in shallow rocky bottom waters ~ carnivorous, mainly small fish ~ oviparous fish with poisonous glands at the base of spines, and mature male fish with connectors, distributed in the coastal areas of the Philippines, Taiwan, Japan and Chinese mainland ~
Grouper generally refers to all genera of grouper subfamily of Perciformes.
Grouper belongs to Actinidia, with oval body, flat side, big head, thick body and big mouth, which is not suitable for long-distance fast swimming ~ It is not surprising that grouper is quite big, with a body length of more than one meter and a weight of 100 kg. However, there are many kinds of groupers and their sizes are different ~ they will devour their prey instead of tearing it apart with their mouths; This is because they don't have many teeth in their jaws, but the dental plates in their throats can crush food ~ They are used to waiting for fish, octopus, crabs, lobsters and other prey to approach, instead of chasing prey in the vast waters ~
Groupers usually inhabit rocky areas, undersea caves and crevice coral reefs.