Inland waters fisheries policy based on water environmental conservation perspective

For many years,the research group investigated a part of large body of water in Chinese land and the water quality analysis.The data showed that the eutrophication in large body of water in China is still rather serious.The nitrogen element(N) was the primary impact factor; Eutrophication Index of N was higher than phosphorus element(P).This study indicated that silver carp and bighead carp may be served as a means to control water eutrophication.In order to protect our large body of water against the eutrophication,it is important to play the role of large body water fisheries in transformation and counseling of N and P.This paper puts forward the policy and methods of the fisheries to the different types and functions of the large body of water fisheries.