China has 6.7 million ha rice fields, which could also be used to culture fish, but now the utilization rate is only 15%; China has 2.6 million ha brackish waterareas, which could be used for mariculture, but now the utilization rate is only 28%. China could increase its productive capability in those areas so as to maintain the growth of aquatic products. Furthermore,we would raise the product quality from non-harmful
food to organic food.