5Thomas M.Losordo.An introduction to recirculating production systems design[M].In:Proceedings from the aquaculture symposium,Cornell university,Ithaca,New York,April4-6,1991.Engineering Aspects of Intensive Aquaculture.Northeast Regional Agricultural Engi
6Boyd C.E.,R.P.Romaire,E.Johnston.Predicting early morning dissoloved oxygen concerntration in channel catish pond[J].Transcations of the American Fisheries Society,1997-1998:484-492.
7Miller G E,G S Libey.Evaluation of three biology filters suitable for aquaculture application[J].Journal of the Word Mariculture Society,1985(16):158-168.
8Ruane, R.J.,T.Y.J.Chu,V.E.Vaandergriff. Characterization and treatment of waste discharge from high-density catfish culture[J].Water Research.1977(11):789-800.
9Akai,D.,O.Miki,,S.Ohgaki.Nitrification model with inhibitory effect of sea water[J].Ecological Modeling.1983(19):189-198.
