p. 275 - 287 DONNEES PRELIMINAIRES CONCERNANT L'ELEVAGE DIRIGE DES POISSONS MARINS AU LITTORAL ROUMAIN DE LA MER NOIRE Valerian Udrea Institute Roumain de Recherches Marines Constanta Abstract The attempts of the Mugil cephalus, M. Auratus and M. Saliens conducted growing, together with Platichthys flesus luscus and Acipenseridae have demonstrated that these species are adapting on fresh water ponds growing conditions. In this paper there are presented the main biotechnical parametres resulted from experiences as the population density, on hectare, the yearly rythm of growth the artificial food consumption per one kilo fish meat and the hectare productivity.