Fig 6.

Distribution of the percentage of high-nucleic-acid-content cells (% HNA) (A) and the percentage of NADS-determined “live” cells (% NADS⁺) (B) in the epipelagic (Epi, 0- to 200-m) and mesopelagic (Meso, 200- to 1,000-m) layers of the three oceanic regions: Ef, eddy field region south of the Canary Islands; Uw, influenced by coastal waters of the NW African upwelling; and Oc, open-ocean waters of the NE Atlantic Subtropical Gyre. Letters denote significant differences between regions for the epipelagic and mesopelagic waters (one-way ANOVA mean comparison [alpha = 0.05]).