The project proposes to address environmental problems linked to the development of invasive algae, to its limitation in the environment and the impacts of this elimination on the quality of the environment and biodiversity . ECO - LAGUNES aims to demonstrate that the environmental management of aquatic environments marsh can ensure the development of sustainable economic activity preserving biodiversity . The development of methods of environmental management during the project will be the result of close collaboration between different local partners : local authorities , socio- professional sector scientists.