Samples have been taken from the Alsbäck Deep in Gullmar Fjord, Sweden (58°19.38'N, 11°32.74'E; 117 m depth). Summary of individual measurements for foraminiferal denitrification and oxygen repiration rates (individual), where Ind. refers to the number of individuals used for one incubation. The replicate number is used to distinguish between different biological replicates of the same rate and species. The number of specimens indicates how many foraminifera were used for this replicate. Type of rate indicates if denitrification or oxygen respiration was measured. The metabolic rates were calculated from linear steady-state gradients of nitrous oxide or oxygen in glass microcapsules as described in the related publication Woehle & Roy et al. (2018). Cell volumes and volume specific rates are only given for the oxygen respiration rates.