1. The cultivated species of Rushan Oyster are mainly Pacific Oyster, which adopts raft culture method. The culture areas are mainly distributed in the open waters from Rushankou in the west to Langnuankou in the east. Oyster industry has become one of the pillar industries of fishery economy in Rushan City.

2. Oyster is a kind of shellfish with high economic and nutritional value. Fresh oyster software (meat) contains protein 4.5% ~ 4.7%, fat 7% ~ 10%, glycogen 19% ~ 38%, B vitamins and 18 amino acids. Oysters are shellfish that can be eaten raw. Rushan has a saying that oysters are eaten raw and shrimps are eaten alive since ancient times. Coastal fishermen often pry open oyster shells on rocks and eat oyster meat raw. Oysters can also be made into oyster sauce and canned food. Oyster meat contains extremely high zinc, which is very beneficial to men's health. The main component of the famous emerging drug, the golden oyster, is oyster extract. Oyster shells can also be used as medicine. They are slightly cold and salty, and have the functions of subduing yang, astringing, resolving phlegm and softening hardness. Mainly used for dizziness, spontaneous sweating, night sweats, nocturnal emission, metrorrhagia, leukorrhagia, and lymphoid tuberculosis.