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Verfasst von:Klintzsch, Thomas [VerfasserIn]   i
 Geisinger, Hannah Katharina [VerfasserIn]   i
 Wieland, Anna [VerfasserIn]   i
 Langer, G. [VerfasserIn]   i
 Nehrke, G. [VerfasserIn]   i
 Bizic, M. [VerfasserIn]   i
 Greule, Markus [VerfasserIn]   i
 Lenhart, Katharina [VerfasserIn]   i
 Borsch, C. [VerfasserIn]   i
 Schroll, Moritz [VerfasserIn]   i
 Keppler, Frank [VerfasserIn]   i
Titel:Stable carbon isotope signature of methane released from phytoplankton
Verf.angabe:T. Klintzsch, H. Geisinger, A. Wieland, G. Langer, G. Nehrke, M. Bizic, M. Greule, K. Lenhart, C. Borsch, M. Schroll, and F. Keppler
E-Jahr:2023
Jahr:28 June 2023
Umfang:12 S.
Illustrationen:Illustrationen
Fussnoten:Veröffentlicht: 20. Juni 2023 ; Gesehen am 10.08.2023
Titel Quelle:Enthalten in: Geophysical research letters
Ort Quelle:Hoboken, NJ : Wiley, 1974
Jahr Quelle:2023
Band/Heft Quelle:50(2023), 12 vom: Juni, Artikel-ID e2023GL103317, Seite 1-12
ISSN Quelle:1944-8007
Abstract:Aquatic ecosystems play an important role in global methane cycling and many field studies have reported methane supersaturation in the oxic surface mixed layer (SML) of the ocean and in the epilimnion of lakes. The origin of methane formed under oxic condition is hotly debated and several pathways have recently been offered to explain the “methane paradox.” In this context, stable isotope measurements have been applied to constrain methane sources in supersaturated oxygenated waters. Here we present stable carbon isotope signatures for six widespread marine phytoplankton species, three haptophyte algae and three cyanobacteria, incubated under laboratory conditions. The observed isotopic patterns implicate that methane formed by phytoplankton might be clearly distinguished from methane produced by methanogenic archaea. Comparing results from phytoplankton experiments with isotopic data from field measurements, suggests that algal and cyanobacterial populations may contribute substantially to methane formation observed in the SML of oceans and lakes.
DOI:doi:10.1029/2023GL103317
URL:Bibliographic entry. University members only receive access to full-texts for open access or licensed publications.

kostenfrei: Volltext: https://doi.org/10.1029/2023GL103317
 kostenfrei: Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1029/2023GL103317
 DOI: https://doi.org/10.1029/2023GL103317
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:algae
 cyanobacteria
 methane
 methane paradox
 phytoplankton
 stable isotopes
K10plus-PPN:1855124696
Verknüpfungen:→ Journal

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