p. 133 - 139 STRUCTURE DU PEUPLEMENT D'Octopus vulgaris CUVIER DE LA ZONE DE L'ATLANTIQUE EST-CENTRAL (20 grade 46' - 19 grade 36'N) Cornelia Maxim Institut Roumain de Recherches Marines Constanta Abstract The paper presents the results of the surveys carried out on Octopus vulgaris CUVIER, caught in the coastal area of the IR of Mauritania, during May-September 1982. There are presented the lenght and weight frequences, sex ratio, stages of maturity and lenght-weight relationship.