New analytical approach in monitoring of CO2 cycle in aquatic ecosystems.

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Smajgl, Danijela, Böhm, Florian, Eisenhauer, Anton , Taubner, Isabelle and Mandic, Magda (2018) New analytical approach in monitoring of CO2 cycle in aquatic ecosystems. [Poster] In: Ocean Sciences Meeting 2018. , 11.-16.02.2018, Portland, Oregon, USA .

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Abstract

The isotopic signatures of carbon (δ13C) and oxygen (δ18O) can be used as a tool to understand pathways, processes and the fate of CO2 molecules in particular in the marine environment. This is because δ13C-values are controlled by species specific metabolic processes of respiration and photosynthesis, while the δ18O-values are affected by the oxygen exchange between the molecules of CO2 and the ambient water. Here we present a new analytical approach to determine δ13C and δ18O changes using a mid-infrared laser (IRIS) absorption spectrometer, Thermo Scientific™ Delta Ray™ IRIS with URI Connect. With IRIS technology, it is possible to record online changes of carbon and oxygen isotopes with time resolutions of seconds,and with this to have a better insight in CO2 fluxes.

Document Type: Conference or Workshop Item (Poster)
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-MG Marine Geosystems
Projects: BASE-LiNE Earth
Date Deposited: 26 Mar 2018 10:14
Last Modified: 26 Mar 2018 10:14
URI: https://oceanrep.geomar.de/id/eprint/42398

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