In order to eliminate the effects on BOD and COD of the fishery seawater in Maoming offshore, and to establish harmless aquatic breeding technological plans and provide evidence to related environmental protection measurement,the current states of BOD and COD in the fishery seawater of Maoming offshore were monitored.The results showed that the seawater quality of Maoming offshore is comparatively good, but the seawater quality of fishery is getting bad year by year;the ocean climate of Maoming offshore has...