These data were published as Figure 5 in Santoro et al. (2020).
Nitrate (NO3-) and Nitrite (NO2-) d15N and d18O data from the samples are available in the related dataset "ETSP NO3 and NO2 isotopes" (https://www.bco-dmo.org/dataset/903891).
Description of changes/updates contained in version 2 of this dataset:
Most depths were analyzed in duplicates from two bottles (i.e. one measurement of all isotopic variables and a concentration per bottle). This version (v2) contains each measurement in a unique column (i.e. d15n_alpha1, d15n_alpha2, etc.). A quality control (QC) flag was also added for each measurement using the SeaDataNet QC guidelines available at https://www.seadatanet.org/Standards/Data-Quality-Control.