Physico-chemical parameters, chloride, bromide and sulfate concentrations, nutrient concentrations, oxygen and hydrogen isotopic composition of water as well as oxygen and nitrogen isotopic composition of dissolved nitrate were measured in sea water, fresh submarine groundwater discharge (FSGD), groundwater and stream water samples collected during a field expedition on Tahiti and Moorea, French Polynesia in January and February 2016 .

Supplement to: Haßler, Kathrin; Dähnke, Kirstin; Kölling, Martin; Sichoix, Lydie; Nickl, Anna-Leah; Moosdorf, Nils (2019): Provenance of nutrients in submarine fresh groundwater discharge on Tahiti and Moorea, French Polynesia. Applied Geochemistry, 100, 181-189