p. 103 - 123 VARIATIONS QUANTITATIVES DU ZOOPLANCTON DANS LES EAUX NERITIQUES ROUMAINES DE LA MER NOIRE Florica Porumb Institute Roumain de Recherches Marines Constanta Abstract The qualitative and quantitative changes of the zooplankton inhabiting the surface layer (0-10 m) of the Romanian Black Sea waters are discussed in the paper. The author presents the evolution of the zooplankton for the period 1972-1980 when an intense eutrophication of the Black Sea waters was recorded.