Le marais littoral de Kervigen, 22 ha presque entièrement couverts de roseaux, a été utilisé à titre expérimental pour abaisser les flux nutritifs d'un ruisseau côtier, le I

The coastal marsh of Kervigen is located near by the bay of Douarnenez and its 22 hectares are almost entirely covered bV reeds. An experiment was there carried out to assess the nitrogen flux depletion of a sma/l stream, the Kerharo. The last one has a 45 I