Skip to main content
. 2020 Sep 10;11:1730. doi: 10.3389/fmicb.2020.01730

TABLE 1.

Pearson’s correlations between environmental variables and bacterial α- and β-diversity (Mantel test).

Sea layer Environmental variable OTU richness Shannon index Community composition Functional structure
Epipelagic zone Depth 0.72*** 0.48** 0.12 0.25**
DO −0.70*** −0.44** 0.67** 0.74**
Temperature −0.68*** −0.50*** 0.63** 0.70**
Salinity 0.73*** 0.45** 0.28** 0.30**
NO3 0.73*** 0.52*** –0.06 0.02
PO43– 0.22 0.31* –0.12 –0.06
SiO32– –0.14 –0.001 0.14 0.10
Below depth of 200 m Depth −0.35* 0.008 0.14** –0.002
Whole water column Depth −0.42*** 0.20 0.51** 0.66**

*p < 0.05; **p < 0.01; ***p < 0.001.