These areas, along with others, such as the Fluvià river, are part of the Natura 2000 Network, a network of protected areas in the European Union (EU) established with the aim of conserving biodiversity and ensuring the sustainable use of natural resources.
the Natura 2000 Network is composed of Special Areas of Conservation (SAC) designated under the Habitats Directive and Special Protection Areas (SPA) designated under the Birds Directive. These areas are chosen on the basis of their ecological importance and the presence of rare, threatened or endemic species and habitats.