Fig. 6: Distribution of diazotrophic cyanobacteria in surface and mesopelagic waters during the Tara Oceans expedition.
From: Diazotrophs are overlooked contributors to carbon and nitrogen export to the deep ocean
A Geographical location of the Tara oceans stations used in this study. Only stations in which metagenomic reads belonging to nifH gene sequences from distinct cyanobacterial diazotrophs were present in surface and metagenomes were available both from surface and mesopelagic waters were selected. B Abundance of metagenomic reads recruited against different diazotrophic cyanobacteria genomes in surface and mesopelagic samples. See Table S3 for the complete dataset. Note that to better visualize the data, read abundance was expressed as number of reads per 100,000 total reads for surface samples (left axis) and per 1,000,000 total reads for mesopelagic samples (right axis).
