2 documents found, page 1 of 1
Ocean kinetic energy and photosynthetic biomass are important drivers of plankt...
Rufino, Marta M.; Salgueiro, Emília; Voelker, Antje H. L.; Polito, P. S.; Cermeno, Pedro; Abrantes, FIt is hypothesized and tested for the first time, that the large-scale diversity patterns of foraminifera communities are determined by sea surface temperature (ISST, representing energy), Chl-a (a surrogate for photosynthetic biomass) and ocean kinetic energy (as EKE). Alpha diversity was estimated using species richness (S), Shannon Wiener index (H), and Simpson evenness (E), and mapped using geostatistical a...
Diatoms Si uptake capacity drives carbon export in coastal upwelling systems
Abrantes, Fatima; Cermeno, Pedro; Lopes, C.; Romero, Oscar; Matos, Lelia; Van Iperen, Jolanda; Rufino, Marta; Magalhaes, VitorCoastal upwelling systems account for approximately half of global ocean primary production and contribute disproportionately to biologically driven carbon sequestration. Diatoms, silica-precipitating microalgae, constitute the dominant phytoplankton in these productive regions, and their abundance and assemblage composition in the sedimentary record is considered one of the best proxies for primary production....