My area of interest is biological oceanography, with an emphasis on biogeochemistry and microbial ecology. My scientific expertise has focused on the study of energy transformations that occur in environments deficient in oxygen (water column and sediments) through the cycle of nitrogen, carbon, and sulfur, the role that biological communities play in these transformations, and how the physical tensors (mainly those associated with climate change), modulate them. Likewise, in recent years, I have dedicated myself to understanding the causes and consequences of eutrophication processes in freshwater and marine coastal systems and how changes in catchment land uses modulate coastal marine functioning.