Size-fractionated metagenomic depth profiles from two sulfidic stations in the Chesapeake Bay

We present 45 size-fractionated metagenomes collected from two stratified Chesapeake Bay mainstem stations during bottom water sulfidic conditions. This data set enables investigations into shifts in community structure and genomic potential across redox gradients and particle associations (free-living [0.2-3 µm], small [3-30 µm], medium [30-180 µm], and large [>180 µm] fractions).