p. 163 - 181 QUELQUES ASPECTS BIOCHIMIQUES ET ENERGETIQUES AUX PRINCIPALES ESPECES D'INVERTEBRATES BENTHIQUES DU LITTORAL ROUMAIN DE LA MER NOIRE Natalia Rosoiu Institut Roumain de Recherches Marines Constantza Abstract The paper presents dynamics of water, mineral, total organic substance, protein, lipid and carbohydrat contents, as well as caloric values in some benthic invertebrates from the Black Sea. Significance of these compounds are pointed out with special references on their caloricity.