Extended Data Fig. 1: Nitrogen isotope values of Sargassum, Prochlorococcus, Synechococcus, and Eukaryotic Phytoplankton from the subtropical North Atlantic.
From: Equatorial upwelling of phosphorus drives Atlantic N2 fixation and Sargassum blooms
The nitrogen isotope values of the macroalgae Sargassum fall with values for the ubiquitous marine cyanobacteria Prochlorococcus and Synechococcus. Common eukaryotic phytoplankton fall above that seen of Sargassum based on data by ref. 31. The ranges of regenerated N, newly fixed N, subsurface nitrate and surface nitrate are indicated by colored bars. The lower and upper bound of the error bar represent the full range of data.
