Prof. Dr. Ricardo Prego is a Research Professor at the Department of Oceanography, Marine Research Institute (CSIC). He graduated in Chemistry (1977, USC) and specialized in Inorganic Chemistry (1981, M.Sc., USC). In 1984, he joined IIM-CSIC (1988, PhD: budget of C, N, P, and Si in a ria-system); next, he became a Chemical Oceanographer at CSIC (1990, Tenure Scientist) focusing on the biogeochemical exchanges in coastal zones (member of the Spanish LOICZ Committee). He is a coordinator or scientist of 22 EU and Spanish research projects, on board 20 cruises (≈400 days at sea): Iberian Atlantic Margin; South Indian Ocean; Weddell, White and Cantabrian Sea; Galician coast. Moreover, he is a supervisor of six Ph.D. and four postdoctoral studies. He is an invited editor or author of 19 journals and books (as the history of former Spanish Fisheries Research Institute 1951-1978) and 200 articles (70% in JCI journals), mainly on nutrients, TE, or REE in Galician rias, Chilean fjords, Arctic estuaries, and Pacific Mexican lagoons; Galicia upwelling during the Holocene; and metal sea-spill from the Prestige oil-tanker shipwreck.