Fig. 6: Microbial community diversity patterns across depths above or below peak modeled rates of AOM.
From: Distinct methane-dependent biogeochemical states in Arctic seafloor gas hydrate mounds
Shannon diversity indices of microbial communities for individual samples plotted by their distance above (positive) or below (negative) the depths corresponding to present-day maximum AOM rates across all cores. Cores are divided by panel based on whether methane flux is a high, or b low, and colored according to different states of methane dynamics. Dashed vertical lines show the distance interval corresponding to high methane flux samples. Multiple R2 and slope p-values are shown for linear regressions of points within these intervals. For PC1029, we assigned 13 cm as the depth corresponding to the peak AOM rate based on the steepest decrease in porewater sulfate concentration.
