Table 2.

Summary of sequences used in analyses from all communities

	USA	AU	DK
# (%) of contigs retained	7,610 (47.96 %)	7,331 (65.52 %)	18,024 (6.69 %)
# (%) of ORFs retained	22,894 (66.06 %)	25,003 (81.15 %)	30,516 (10.14 %)
# enzymes in energy pathways (%) of annotated enzymes	645 (22.13 %)	714 (22.60 %)	524 (22.40 %)

Number of retained contigs, open reading frames from retained contigs, and energy pathway related enzymes (butanoate metabolism, citric acid cycle, glycolysis and gluconeogenesis, nitrogen metabolism, pentose phosphate pathway, and propanoate metabolism) from open reading frames annotated as enzymes. Contigs at least 1000 nucleotides in length were retained