For several years, the Rochefort Ocean Agglomeration Community (CARO) has been supporting measures to combat harmful species through grants to institutional actors in the territory. This year it wishes to be more directly involved in the implementation of this programme of control by taking the lead of this programme on its territory.The Community of Aglomeration Rochefort Océan is also engaged with the Community of Communes of the Marennes Basin (CCBM) in a global project on the Marais de Brouage common to the two Etablissement Public de coopération Intercommunale (EPCI). That is why both communities have decided to work together for this program.