Gray pomfret is a kind of warm temperate fish, which is distributed in the coastal areas of China, Japan, Southeast Asia and other places. Gray pomfret grows rapidly, with rich meat and delicious taste. It is an excellent edible fish with high economic value. The body is rhombic. The dorsal fin and gluteal fin were significantly prolonged, the caudal fin was bifurcated and the lower lobe was prolonged. The back is blue-gray and the abdomen is gray-white, all of which have silver-gray luster.

Pomfret is an economic fish, with a habitat depth of about 10-30 meters, a nearly round body and a flat side. It is mainly distributed in the Indian Ocean and the Pacific Ocean, and only occurs in the South China Sea, especially in the coastal areas of Guangdong. The spawning period is May-June. Warm-water fish like to inhabit offshore rocks or coral reefs.

Pampus argenteus, also known as "mirror fish", belongs to the fish class, pomfretinae. Body sideways, oval, silver gray, small head, round nose and mouth. The head and chest are obviously connected, and the mouth and eyes are very small. Each jaw has a row of fine teeth, and there are nipples in the esophageal side capsule, so the mouth and tongue can't stretch. The sensory canal at the back of the head never extends and is pointed, with 40~4 1 vertebra. The dorsal fin is the same shape as the gluteal fin, slightly longer and sickle-shaped. The ventral fin of adult fish disappears, the fin spines are short, the tail is bifurcated, and the lower leaf is longer than the upper leaf. The body surface is covered with tiny garden scales, and the color is silvery white, so it is called silver pomfret. Silver pomfret is distributed in the western Pacific region of India, including Persian Gulf, Iran, Pakistan, India, Sri Lanka, Bangladesh, Thailand, Vietnam, Malaysia, Myanmar, Japan, China, South Korea, Taiwan Province Province, Cambodia, the Philippines and Indonesia. Trachinotus ovatus, whose scientific name is Ampulla ovata, and its local name is Ampulla goldensis, belongs to Ampulla. The fish body is flat and oval, and the gluteal fin is slightly equal to the second dorsal fin, which is obviously longer than the abdomen. The head side is flat, the tail handle is thin, and the body is covered with small round scales, which is not easy to peel off. Fish is white, tender and delicious, and it is one of the precious marine economic fish in the southern coastal areas. Habitat in tropical, subtropical and temperate waters of Indian Ocean, Pacific Ocean and Atlantic Ocean.