Ksionzek, Kerstin B; Lechtenfeld, Oliver J; McCallister, S Leigh; Schmitt-Kopplin, Philippe; Geuer, Jana K; Geibert, Walter; Koch, Boris P (2016): Quantification and molecular characterization of dissolved organic sulfur in water samples obtained during POLARSTERN cruise ANT-XXV (PS73) to the East Atlantic and the Southern Ocean. PANGAEA, https://doi.org/10.1594/PANGAEA.858568, Supplement to: Ksionzek, KB et al. (2016): Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory. Science, 354(6311), 456-459, https://doi.org/10.1126/science.aaf7796
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Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of non-volatile dissolved organic sulfur (DOS). We present a basin-scale distribution of solid phase extractable DOS in the East Atlantic Ocean and the Atlantic sector of the Southern Ocean. While molar DOS versus dissolved organic nitrogen (DON) ratios of 0.11 ± 0.024 in Atlantic surface water resembled phytoplankton stoichiometry (S/N ~ 0.08), increasing dissolved organic carbon (DOC) versus DOS ratios and decreasing methionine-S yield demonstrated selective DOS removal and active involvement in marine biogeochemical cycles. Based on stoichiometric estimates, the minimum global inventory of marine DOS is 6.7 Pg S, exceeding all other marine organic sulfur reservoirs by an order of magnitude.
Median Latitude: -12.789375 * Median Longitude: -6.508379 * South-bound Latitude: -70.492300 * West-bound Longitude: -20.951300 * North-bound Latitude: 50.190100 * East-bound Longitude: 17.892500
Date/Time Start: 2008-11-03T13:12:00 * Date/Time End: 2008-12-22T10:27:00
Datasets listed in this publication series
- Ksionzek, KB; Lechtenfeld, OJ; McCallister, SL et al. (2016): Dissolved organic sulfur in solid-phase extracts of water samples obtained during POLARSTERN cruise ANT-XXV (PS73). https://doi.org/10.1594/PANGAEA.858564
- Ksionzek, KB; Lechtenfeld, OJ; McCallister, SL et al. (2016): Methionine-sulfur yield of two depth profiles of solid-phase extractable dissolved organic matter obtained during POLARSTERN cruise ANT-XXV (PS73). https://doi.org/10.1594/PANGAEA.858890
- Ksionzek, KB; Lechtenfeld, OJ; McCallister, SL et al. (2016): Molecular characterization of sulfur-containing compounds in solid-phase extracts of water samples obtained during POLARSTERN cruise ANT-XXV (PS73). https://doi.org/10.1594/PANGAEA.858565