ANTARES is a network of eight countries dedicated to study long-term changes in coastal areas around Latin America based on the observation of the temporal variability of eight coastal stations. During the past five years (2012 to 2017) , this study had as main goal to strengthening the interaction between NANO and ´ChloroGIN-ANTARES´ networks focusing specially on pigment analysis using HPLC. This objective was accomplished thanks to the collaboration with the Ocean Ecology Laboratory (NASA Goddard Space Flight Center, Greenbelt, Maryland, USA). The importance of this analysis is both (a) its relationship with biogeochemical cycles and (b) the need of data to calibrate and validate mathematical algorithms used to interpret satellite images.