FIG 3.

Abundance of MAGs in response to amendment with naphthalene. Each row represents a MAG. Mean metagenomic coverage (measure of abundance) of MAGs in naphthalene-amended and unamended seawater was normalized to sequencing depth and log-transformed. Each column represents a sample with collection month and year indicated (e.g., 0113 is January 2013). Amended samples have _12 (¹²C-naphthalene added) or _13 (¹³C-naphthalene added) next to the sample name and are outlined by rectangles. Incubation time is denoted under the rectangles. The rest of the samples represent t₀ (before naphthalene addition). MAG taxonomy by GToTree is displayed on the right. MAGs in bold font had significantly higher coverage in naphthalene-amended samples (P value < 0.05). *, 16S-rRNA-based taxonomy where its resolution was higher than GToTree taxonomy.