Figure 2
From: Scaling of species distribution explains the vast potential marine prokaryote diversity
Number of species as a function of the number of reads. The expected number of OTUs in a random sampling of the total population grows sublinearly with sampling size, S ~ Nγ. (A) In the upper ocean (continuous black line), we can identify a first quasi-linear regime with γ = 0.90 (confidence interval 95% <0.01) and a second regimen with γ = 0.33 (confidence interval <0.01), while (B) in the deep ocean (continuous red line) the exponent γ = 0.62 (confidence interval <0.01). The number of OTUs in the upper ocean (horizontal dotted black line) is estimated at 35,650 OTUs5 and in the deep ocean (horizontal dotted red line) the maximum number of OTUs found is 3,6954.
