Nitrate uptake at photic zone depths is not important for export in the subtropical ocean

Painter, S.C.; Sanders, R.; Poulton, A.J.; Woodward, E.M.S.; Lucas, M.; Chamberlain, K. 2007 Nitrate uptake at photic zone depths is not important for export in the subtropical ocean. Global Biogeochemical Cycles, 21 (4). GB4005. https://doi.org/10.1029/2006GB002807