Rural Pearl City abounds in mussels, go to the river can casually touch a pot, braised especially delicious, the market price of mussels and mussel market price and mussel varieties as well as feeding time related to the general situation of ordinary mussels is one or two dollars a catty, if it is the net meat is thirty or forty dollars a catty, and out of the meat is more of the mussels gross price is four or five dollars a catty.