Green Algae Bays in Brittany: PLAV1 2010-2015

A plan to combat green algae (ulva) was defined by the State on 05/02/2010, due to phenomena of proliferation of green algae observed on the Breton coasts. It concerns 14 catchment areas whose nitrate flows must be reduced by at least 30 % (provision 10A-1) under the Master Plan for Water Planning and Management (SDAGE) Loire Bretagne approved on 18/11/2009. The 14 catchment areas, described in the fact sheet entitled & Watersheds Green Algae in Brittany; are here aggregated into 8 green algae berries. These hydrographic contours are translated into zonages of type "territory action " described in the fact sheets entitled &Zonage territoire 'action basins' green Algae slopes in Brittany" and &Zonage 'territory action' green Algae Bays in Brittany". __Origin__ Hydrographic outline based on BDCARTHAGE hydrographic areas and water bodies under the Framework Directive on Water. __Partner organisations__ DRAAF Bretagne __Links annexes__ * [DRAAF website](http://www.draaf.bretagne.agriculture.gouv.fr/Plan-de-lutte-contre-les-algues) [See this page on geo.data.gouv.fr](https://geo.data.gouv.fr/fr/datasets/8a63926f7836b4e0fe45a0e55b8a8d251f1e8b5e)