ased on the samples of zooplankton collected from the Kuroshio area of the east Chinasea during the periods of July to August,1987.and October to November,1989,the speciescomposition, quantitative distribution.ccological groups and community construction ofplanktonic ostracoda in the samples were analysed.and went further into their relationshipwith environmental factors in this paper.The results show that total 38 species of planktonicostracoda were found and the horizontal distribtition of species numb...