Table 2.

PerMANOVA results for environmental parameters against Bray-Curtis matrices of all reconstructed bacterial metabolic pathways, metabolic pathways (from the KEGG database) related to organic matter metabolism (OM, n = 113 for bacteria and n = 101 for archaea), and hydrocarbons (HC, n = 14 for Bacteria and n = 10 for Archaea).

	All pathways				HC related pathways				MO related pathways
	Bacteria		Archaea		Bacteria		Archaea		Bacteria		Archaea
	R2	P value	R2	P value	R2	P value	R2	P value	R2	P value	R2	P value
n = 32
Salinity	51%	0.0001	11.20%	0.0342	50.5%	0.0001			50.8%	0.0001	11.70%	0.0289
Temperature	36%	0.0002	10.70%	0.0368	32.80%	0.0006			35.70%	0.0002	11.10%	0.0361
% TOC	17.5%	0.012			18.70%	0.0094			17.70%	0.0141

Non-significant parameters are not shown (p > 0.05). The percentages indicate the relative contribution of the parameters to matrix variation.