p. 213 - 221 SOME REMARKS ON THE REPRODUCTION OF THE CYSTOSEIRA BARBATA (GOOD. ET WOOD.) J.AG. ALGA IN THE BLACK SEA Maria Stadniciuc Romanian Marine Research Institute Constantza Abstract The dynamics of development of reproduction organs and the gametes maturation of Cystoseira barbata on the Romanian shore of the Black Sea is discussed. The reproduction process takes place during the course of the whole year with a first maximum of intensity in spring time and a second, less marked maximum, in the autumn. In winter and summer, short periods of stagnation of gamet elimination were recorded.