Marine Knowledge 2020 brings together marine data from different sources with the aim to help researches, public authorities, etc., finding the data and making more effective the use and the develop of new products and services, and improving our understanding of how the seas behave. On this way, it is necessary to develop tools and platforms to provide accessibility to marine information. The UE is developing several initiatives on this way. EMODnet is an initiative from the European Commission Directorate-General for Maritime Affairs and Fisheries (DG-MARE) as part of its Marine Knowledge 2020 strategy. The EMODnet aim is finding, gathering, and elaborating contínuos layers about marine data resources, and to make these available to individuals and organizations (public and private), and therefore contribute to facilitating and increasing the scientific knowledge of marine environment through improved access to quality-assured, standardized and harmonized marine data. There are six sub-portals that providing access to marine data from the following themes: ditigal bathymetry, marine geology, physical oceanography, chemistry and pollution, marine biodiversity, seabed habitat mapping and human activities. IEO are implicated in the collecting data about bathymetry, physics, chemistry, biology and seabed habitats. The EMODNET BATHYMETRY PORTAL providing access to several DTMs about Atlantic Margin, including Macaronesia. This data provides a very importante bathymetric information of reference, to support to several multidisciplinary researches in the marine environment.