Between 1961 and 1989, the C.S.M. observed the radioactivity of the atmosphere and used natural and artificial radioactive carbon to trace the big oceanic currents and as an indicator in paleontology.

Maintaining the tradition of oceanographic studies and marine biology, the C.S.M. has made precious contributions to the evaluation of life-times in deep waters of the Mediterranean Sea, from the study of pollutant and organism transfers, the modification of coastal water circulation, the fate of bacterial pollutants in the sea, to the over-burdening effects of nutritive elements in natural cycles.

In collaboration with the C.N.R.S. laboratories of Marseilles, it has demonstrated the adaptation capacities of nerve cell activity in marine mollusks and has participated actively with the Physics Laboratory of the Natural History Museum of Paris, in perfecting the Argos satellite floaters for the study of major marine currents in the Atlantic and Pacific.