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BG | Articles | Volume 17, issue 9
Biogeosciences, 17, 2579–2591, 2020
https://doi.org/10.5194/bg-17-2579-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Biogeosciences, 17, 2579–2591, 2020
https://doi.org/10.5194/bg-17-2579-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 15 May 2020

Research article | 15 May 2020

Reconstructing N2-fixing cyanobacterial blooms in the Baltic Sea beyond observations using 6- and 7-methylheptadecane in sediments as specific biomarkers

Jérôme Kaiser et al.

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Cited articles

Bauersachs, T., Hopmans, E. C., Compaore, J., Stal, L. J., Schouten, S., and Sinninghe Damsté, J. S.: Rapid analysis of long-chain glycolipids in heterocystous cyanobacteria using high-performance liquid chromatography coupled to electrospray ionization tandem mass spectrometry, Rapid. Commun. Mass Sp., 23, 1387–1394, 2009. 
Bauersachs, T., Talbot, H. M., Sidgwick, F., Sivonen, K., and Schwark, L.: Lipid biomarker signatures as tracers for harmful cyanobacterial blooms in the Baltic Sea, PLoS ONE, 12, e0186360, https://doi.org/10.1371/journal.pone.0186360, 2017. 
Berndmeyer, C., Thiel, V., Schmale, O., Wasmund, N., and Blumenberg, M.: Biomarkers in the stratified water column of the Landsort Deep (Baltic Sea), Biogeosciences, 11, 7009–7023, https://doi.org/10.5194/bg-11-7009-2014, 2014. 
Bianchi, T. S.: Biogeochemistry of Estuaries, Oxford University Press, New York, 706 pp., 2007. 
Bianchi, T. S., Engelhaupt, E., Westman, P., Andrén, T., Rolff, C., and Elmgren, R.: Cyanobacterial blooms in the Baltic Sea: Natural or human-induced?, Limnol. Oceanogr., 3, 716–726, 2000. 
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Cyanobacterial blooms represent a threat to the Baltic Sea ecosystem, causing deoxygenation of the bottom water. In order to understand the natural versus anthropogenic factors driving these blooms, it is necessary to study long-term trends beyond observations. We have produced a record of cyanobacterial blooms since 1860 using organic molecules (biomarkers) preserved in sediments. Cyanobacterial blooms in the Baltic Sea are likely mainly related to temperature variability.
Cyanobacterial blooms represent a threat to the Baltic Sea ecosystem, causing deoxygenation of...
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