Articles | Volume 19, issue 3
https://doi.org/10.5194/bg-19-807-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-807-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
10 Feb 2022
Research article |
| 10 Feb 2022
| 10 Feb 2022
What can we learn from amino acids about oceanic organic matter cycling and degradation?
Birgit Gaye
CORRESPONDING AUTHOR
Institute for Geology, Universität Hamburg, 20146 Hamburg, Germany
Niko Lahajnar
Institute for Geology, Universität Hamburg, 20146 Hamburg, Germany
Natalie Harms
Institute for Geology, Universität Hamburg, 20146 Hamburg, Germany
Sophie Anna Luise Paul
Department of Physics and Earth Sciences, Jacobs University Bremen, 28759 Bremen, Germany
GEOMAR, Helmholtz-Zentrum für Ozeanforschung, 24148 Kiel, Germany
Tim Rixen
Institute for Geology, Universität Hamburg, 20146 Hamburg, Germany
Leibniz Centre for Tropical Marine Research (ZMT), 28359 Bremen, Germany
Kay-Christian Emeis
Institute for Geology, Universität Hamburg, 20146 Hamburg, Germany
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Short summary
Amino acids were analyzed in a large number of samples of particulate and dissolved organic matter from coastal regions and the open ocean. A statistical analysis produced two new biogeochemical indicators. An indicator of sinking particle and sediment degradation (SDI) traces the degradation of organic matter from the surface waters into the sediments. A second indicator shows the residence time of suspended matter in the ocean (RTI).
Amino acids were analyzed in a large number of samples of particulate and dissolved organic...
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