Fig. 3

Differences in viral community functional composition between free-living and particle-attached samples. A Auxiliary metabolic gene KEGG module abundances across samples. Sampling stations are sorted from left to right by increasing oxygen concentrations. B Boxplots depicting the differences in pathway abundances between free-living and particle-attached fractions. Boxes depict the median, the first and third quartiles. Whiskers extend to 1.5 of the interquartile ranges. Outliers are represented as dots above or below whiskers. The triple asterisks indicate p-values < 0.001 obtained with the Mann-Whitney test. Sample MP0262 was excluded from this analysis as it displayed extremely high RPKM values, not in line with those observed in any other samples