Modélisation des apports des bassins versants en baie de Bourgneuf

Summary: Located at the junction of the marine field and the continental field, the bay of Bourgneuf is the third larger shellfish basin of France. The durability of the activities at the bay is linked to the maintenance from a good quality of coastal water. The coastal water are heavily impacted by multiple uses which involve conflicts and wastings. In such a context, this study leads to an Integrated Coastal Zone Management (ICZM) in seeking to develop tools for the ecological and economic management durable of the ground-sea interface. The originality of this work lies in the coupling of three models each corresponding to one of the three coastal compartments (watershed, marsh, bay). This allows to evaluate 1) flows of water and materials (MIS, nutrients, bacteriology, pesticide) coming from the watershed, 2) their transfer through the marsh which was