Extended Data Fig. 9: Martinique CB-δ15N record and alternative environmental parameters used to explain Sargassum blooms.
From: Equatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms
a, CB-δ15N values (in ‰ vs. air) of the coral core taken from Martinique in relation to the logarithmic Sargassum spp. biomass of the equatorial Atlantic and Caribbean (0–20°N, 40–90°W). b, Area weighed (10–20°N, 20–60°W) dry dust and dry black carbon deposition (ng m-3 s-1), calculated with the EMAC model. c, Area weighed (10–20°N, 20–60°W) wet dust and wet black carbon deposition (ng m-3 s-1), also based on the EMAC model. d, Average modelled N2 fixation variability (in Tg N yr-1) in the Amazonas plume as taken from Härri et al. 2024. e, Equatorial North Atlantic (0 to 20°N, 20°W to 60°W) SST (°C) is based on the OIv2SST dataset and SSS (PSU) is taken from https://climexp.knmi.nl/.
