p. 129 - 145 DONNEES COMPARATIVES SUR LA FAUNE ASSOCIEE AUX DIFFERENTES ESPECES D'ALGUES MACROPHITES Victoria Tiganus Institut Roumain de Recherches Marines Constanta Abstract The paper presents quantitative and qualitative composition of the invertebrate fauna associated to the thalli of 9 different species of macrophytic algae. The role played by the form and spatial structure of the algal thallus as substrate for the fauna is also discussed.