Extended Data Fig. 8: Mesopelagic carbon budgets of the five stations (PSSs) resulting from the APERO cruise.
From: Distinct contributions of suspended and sinking prokaryotes to mesopelagic carbon budget
The input of carbon to the mesopelagic (ΔPOC plus dark carbon fixation fluxes) were compared to the prokaryotic carbon demand integrated between depths of 100 and 1000 m depths, expressed in mg C m−2 d−1. The legend is detailed above, with the “suspended” fraction that includes free-living and prokaryotes attached to suspended particles, and the “sinking” fraction that corresponds to prokaryotes attached to sinking particles. We applied a PGEsinking of 0.24 and PGESuspended of 0.08 as in29. At PSS2 the lack of DCFSuspended values prevented integration. DCFsinking is <1% and therefore not visible.
