The maritime coast of Catalonia is home to a large part of the biodiversity of the north-west of the Mediterranean, as well as a great diversity of habitats used by several emblematic species of high heritage and economic value that offer us a large number of services such as food, work and well-being, and protects us against global threats such as climate change. Despite the existing coastal management and conservation measures, knowing the movement of species, their use of the different habitats throughout their life cycle and the connectivity between habitats is a key factor for an integrated management throughout the territory that allow the conservation and sustainable exploitation of the coast and its resources. The goals of the CTN are to install and maintain a long-term network of acoustic receivers as well as a mobile marine species tagging and recapture program to generate knowledge about species movement and marine connectivity along the entire Catalan coast.