1% of total reads assigned in at least one of the samples).

All percentages are given as the percentage of total reads for each filtered metagenome. (DOC 88 KB) Additional file 3: Table S3. Reads assigned to archaeal taxa at the genus level in MEGAN (more than 0.1% of total reads assigned in at least one of the samples). All percentages are given as the percentage of total reads for each filtered metagenome. (DOC 33 KB) Additional selleck chemical file 4: Table S4. Reads length distribution for reads assigned at different taxonomic levels in MEGAN. (DOC 44 KB) Additional file 5: Table S5. Genomes used for KAAS annotation. (DOC 55 KB) References 1. Hornafius JS, Quigley D, Luyendyk BP: The world’s most spectacular marine hydrocarbon seeps (Coal Oil Point, Santa Barbara Channel, California): Quantification of emissions. J Geophys Res 1999,104(C9):20703–20711.CrossRef 2. Boles JR, Eichhubl P, Garven G, Chen J: Evolution of a hydrocarbon migration pathway along basin-bounding faults: Evidence from fault cement. Am Assoc Pet Geol Bull 2004,88(7):947–970. 3. Luyendyk B, Kennett J, Clark JF: Hypothesis for increased atmospheric methane input from hydrocarbon seeps on exposed continental shelves during glacial low sea level. Marine and Petroleum Geology 2005,22(4):591–596.CrossRef 4. Reeburgh WS: Oceanic methane biogeochemistry.

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