ANTARES is a South American network created in 2003 in support of the IOCCG (International Ocean-Color Coordinating Group), the POGO (Partnership for the Observation of the Global Oceans) and with initial funding by the IAI (Inter American Institute for Global Change Research). The main objective of the ANTARES network is the study of long-term changes in coastal ecosystems around South America to distinguish those due to natural variability from those due to external disturbances (anthropic effects). To achieve this goal it is proposed to standardize and refine a series of measurements performed on existing time series sampling sites. LAMP participated in the ANTARES project collecting and analyzing macrofauna and microphytobents present in the marine sediment.