According to an inquiry to a small restaurant shows that flying crabs live in the deep sea, thick shells, nutrient-rich, tasty meat, the price per catty in the 60 to 80 yuan, while pike crabs live in the silt of the river, the nutritional content to be a little lower than the flying crabs, the price per catty in the 30 to 50 yuan, and therefore the price of flying crabs is relatively high.