Table 3 Pearson correlation coefficients between the 3 bacterial alpha-diversity indicators and the extractable organic matter, hydrocarbon index and total organic carbon values for longitudinal and depth gradients.

From: Taxonomic and functional trait-based approaches suggest that aerobic and anaerobic soil microorganisms allow the natural attenuation of oil from natural seeps

  

Chao1

Shannon H’

Evenness

GUN (longitudinal)

Extractable organic matter

−0.65*

−0.91***

−0.91***

Hydrocarbon index

−0.59*

−0.85***

−0.85***

TOC

−0.57*

−0.83***

−0.83***

ETV (longitudinal)

Extractable organic matter

−0.68**

−0.85***

−0.88***

Hydrocarbon index

−0.71**

−0 87***

−0.89***

TOC

−0.55*

−0.67**

−0.69**

ETV

(depth)

Extractable organic matter

−0.72**

−0.74**

−0.72**

Hydrocarbon index

−0.86***

−0.91***

−0.90***

TOC

−0.70*

−0.93***

−0.93***

  1. P values are given by * for < 0.05, ** for p < 0.01 and *** for p < 0.001.
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