p. 199 - 211 DONNEES QUANTITATIVES SUR LE PHYTOPLANCTON EN FACE DE LA COTE ROUMAINE DE LA MER NOIRE EN 1972 Anca V. Roban Institut Roumain de Recherches Marines Constantza Abstract The quantitative dynamics of the phytoplancton along the East-of- Constanta profile, in the conditions prevailing in 1972, is described. Density and biomass data are discussed by biologic seasons and horinzons. Comparative considerations by reference with data recorded in other years are ventured. The conclusions is that in 1972 a slight drop in amount of the phytoplancton was recorded.