he results of a marine enclosed ecosystems experiment in Xiamen in fall and winter of1992 were reported.The results showed again that an enclosed water column could induce adinoflagellate red tide through a continual nutrient enrichment.Intermitted inorganic nitro-gen supply did not affect the order of phytoplankton succession,but affect the duration of di-noflagellate red tide and its’dominated species.The results also showed that the successionwas important in forming a dinoflagellate red tide. Different ...