Articles | Volume 16, issue 12
https://doi.org/10.5194/bg-16-2467-2019
https://doi.org/10.5194/bg-16-2467-2019
Research article
 | 
19 Jun 2019
Research article |  | 19 Jun 2019

Biomarker evidence for the occurrence of anaerobic ammonium oxidation in the eastern Mediterranean Sea during Quaternary and Pliocene sapropel formation

Darci Rush, Helen M. Talbot, Marcel T. J. van der Meer, Ellen C. Hopmans, Ben Douglas, and Jaap S. Sinninghe Damsté

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Biomarker in the eastern Mediterranean Sea during Quaternary and Pliocene sapropel formation. PANGAEA D. Rush, H. M. Talbot, M. T. J. van der Meer, E. C. Hopmans, B. Douglas, J. S. Sinninghe Damsté https://doi.org/10.1594/PANGAEA.898591

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Short summary
Sapropels are layers of sediment that regularly occur in the Mediterranean. They indicate periods when the Mediterranean Sea water contained no oxygen, a gas vital for most large organisms. This research investigated a key process in the nitrogen cycle (anaerobic ammonium oxidation, anammox), which removes nitrogen – an important nutrient to algae – from the water, during sapropel events. Using lipids to trace this process, we found that anammox was active during the no-oxygen times.
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