Summary of all individual measurements for foraminiferal denitrification and oxygen repiration rates (individual and volume specific) and cell volumes, where Ind. refers to the number of individuals used for one incubation. The number of the sample (#) is used to distinguish between different samples from the same location. The metabolic rates were calculated from linear steady-state gradients of nitrous oxide or oxygen in glass microcapsules as described in Glock et al. (2019). In addition, total benthic foraminiferal denitrification rates from the Peruvian OMZ from Glock et al. (2013) were corrected according to species-specific rates measured within Glock et al. (2019) are uploaded as a seperate dataset.