p. 129 - 144 PARTICULARITES DE LA STRUCTURE ET DE LA REPARTITION DU PHYTOPLANCTON DE LA ZONE SUD DU LITTORAL ROUMAIN DANS LES CONDITIONS DE PREDOMINANCE DE LA CIRCULATION ATMOSPHERIQUE DE NORD Nicolae Bodeanu et Mioara Usurelu Institut Roumain de Recherches Marines Constanta Abstract The authors underline the influence of the prevailing north and north-east atmospheric circulation during the warmseason of 1981 upon the structure and distribution of phytoplankton from the South zone of the Romanian Black Sea littoral.