What can we learn from amino acids about oceanic organic matter cycling and degradation?

Gaye, Birgit; Lahajnar, Niko; Harms, Natalie; Paul, Sophie Anna Luise; Rixen, Tim; Emeis, Kay-Christian

doi:https://doi.org/10.5194/bg-19-807-2022

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.

https://doi.org/10.5194/bg-19-807-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 3

Research article

|

10 Feb 2022

Research article |

| 10 Feb 2022

What can we learn from amino acids about oceanic organic matter cycling and degradation?

Birgit Gaye, Niko Lahajnar, Natalie Harms, Sophie Anna Luise Paul, Tim Rixen, and Kay-Christian Emeis

Supplement

https://doi.org/10.5194/bg-19-807-2022-supplement

Data sets

N-isotopes and amino acids from CTD station SO242/1_58-1_CTD 4 at the DISCOL area, Peru Basin Sophie Anna Luise Paul, Andrea Koschinsky, Birgit Gaye, and Kirstin Dähnke https://doi.org/10.1594/PANGAEA.885391

N-isotopes and amino acids from sediment multi cores of SONNE cruise SO242/1 at the DISCOL area, Peru Basin Sophie Anna Luise Paul, Andrea Koschinsky, Birgit Gaye, and Kirstin Dähnke https://doi.org/10.1594/PANGAEA.881804

N-isotopes and amino acids from sediment push cores of SONNE cruise SO242/2 at the DISCOL area, Peru Basin Sophie Anna Luise Paul, Andrea Koschinsky, Birgit Gaye, and Kirstin Dähnke https://doi.org/10.1594/PANGAEA.881813

Particulate geochemistry of sediment core SO242/1_108-1_MUC 26. GEOMAR - Helmholtz Centre for Ocean Research Kiel, PANGAEA Matthias Haeckel https://doi.org/10.1594/PANGAEA.884975

Particulate geochemistry of sediment push core SO242/2_166_PUC-70. GEOMAR - Helmholtz Centre for Ocean Research Kiel, PANGAEA Matthias Haeckel https://doi.org/10.1594/PANGAEA.885023

Particulate geochemistry of sediment core SO242/1_38-1_GC 1. GEOMAR - Helmholtz Centre for Ocean Research Kiel, PANGAEA Matthias Haeckel https://doi.org/10.1594/PANGAEA.884981

Amino acids and hexosamines in suspended matter samples collected in different oceanic areas between 1999 and 2017 from shelf seas to the deep ocean B. Gaye, N. Lahajnar, N. Harms, S. A. L. Paul, T. Rixen, and K.-C. Emeis https://doi.org/10.1594/PANGAEA.940723

Amino acids and hexosamines of sediment samples from different oceanic areas between 1987 and 2015 from shelf seas to the deep ocean B. Gaye, N. Lahajnar, N. Harms, S. A. L. Paul, T. Rixen, and K.-C. Emeis https://doi.org/10.1594/PANGAEA.940791

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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).