Fig. 5: Predicted abundances from 2014 to 2016 of 21 DTVs with inferred depths of origins in the upper 500 m.

The top panel includes all mapping data. The bottom panel represents a subset of the top panel, with the most abundant viruses removed. Abundances were approximated using IQR coverage normalized to the smallest sequenced sample. Grey shading indicates summer export pulse samples based on particulate carbon export flux. Surface (5–75 m), deep chlorophyll maximum (100–125 m), transition zone (150–250 m), and mesopelagic (500 m).