1, the long pontoon body shape is long oval, lateral compression, mouth is larger, the head, body side and each fin are scattered green-black spots, adult fish body length of 60-70 cm, the maximum body length of up to two meters, in 30-40 kg, the larger ones up to 100-160 kg, in contrast, the grouper fish body is plump, the mouth is larger, the size is quite large, the length of up to one meter or more, is a typical predatory carnivorous It is a typical predatory carnivorous fish.

2, the scales of the amberjack are fish skin covered with fish scales, while the scales of the grouper are fish scales covered with fish skin.