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Ksionzek, K.B.* ; Lechtenfeld, O.J.* ; McCallister, S.L.* ; Schmitt-Kopplin, P. ; Geuer, J.K.* ; Geibert, W.* ; Koch, B.P.*

Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory.

Science 354, 456-459 (2016)
Verlagsversion DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of nonvolatile 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.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Reduced Sulfur; Matter; Carbon; Dimethylsulfoniopropionate; Phytoplankton; Degradation; Atlantic; Seawater; Sulfide; Dmsp
ISSN (print) / ISBN 0036-8075
e-ISSN 1095-9203
Zeitschrift Science
Quellenangaben Band: 354, Heft: 6311, Seiten: 456-459 Artikelnummer: , Supplement: ,
Verlag American Association for the Advancement of Science (AAAS)
Verlagsort Washington
Begutachtungsstatus Peer reviewed