The Ligurian–Provencal Basin, together with the Gulf of Lions and the Catalan Sea, forms the North-western Mediterranean Basin. This region is characterized by a general cyclonic circulation fed by two distinct fluxes, one from the Tyrrhenian Sea through the Corsica Channel and the other from the northwestern side of Corsica. The two fluxes merge north of the island generating a very stable current that closely follows the sea bottom bathymetry along the Italian coast. A marked front, recognizable both in temperature and salinity, separates the coastal waters from the colder and saltier waters of the basin interior (Gasparini et al.1999).