Jacqueline Bertlich

Ozeanzirkulation und Klimadynamik 


HOSST Helmholtz-Graduiertenkolleg



Raum: 8C-104

Telefon: +49 431 600-2311

E-Mail: jbertlich(at)geomar.de



GEOMAR | Helmholtz-Zentrum für Ozeanforschung Kiel

Gebäude 8, Ostufer

Wischhofstrasse 1-3
D-24148 Kiel

Research interests

  • stable isotope geochemistry
  • biomineralization processes in planktonic foraminifera 
  • paleo-proxy development and application - i.e. foraminiferal Mg/Ca, δ18O and Na/Ca as salinity proxy 
  • sedimentgeochemistry 

Curriculum Vitae


  • 12/2015 - recent: Doctoral researcher at Geomar I Helmholtz Centre for Ocean Research Kiel
  • 10/2010 - 10/2015: Scientific assistant at Westfälische Wilhelms-Universität Münster (Stable isotope geochemistry) 


  • 10/2012 - 04/2015: Westfälische Wilhelms-Universität Münster, Master of Science in Geosciences, Master thesis: Geochemical analysis of the planktic foraminifer Neogloboquadrina pachyderma (sinistral) from the Antarctic sea ice (Weddell Sea)
  • 10/2009 - 10/2012: Westfälische Wilhelms-Universität Münster, Bachelor of Science Geosciences, Bachelor thesis: High spatial resolution microprobe analysis of laser ablated nanoparticles 

Scholarships and other activities 

  • Aug-Sep 2017: Participation in the cruise expedition FS M140 - FORAMFLUX: Scales of population dynamics, ecology and diversity of planktonic foraminifera and their relationship to particle flux in the eastern tropical Atlantic 
  • 12/2016 - 01/2019: DokTeam member - Your PhD representation at GEOMAR
  • 12/2015 - recent: PhD fellowship of the Helmholtz Research School for Ocean System Science and Technology (HOSST) at GEOMAR in Kiel
  • since 12/2015: HOSST PhD representative  

Publications / Conferences

  • Meilland, J., Siccha, M., Weinkauf, M. F. G., Jonkers, L., Morard, R., Baranowski, U., Baumeister, A., Bertlich, J., Brummer, G.-J., Debray, P., Fritz-Enders, T., Groeneveld, J., Magerl, L., Munz, P., Rillo, M. C., Schmidt, C., Takagi, H., Theara, G., and Kucera, M.: Highly replicated sampling reveals no diurnal vertical migration but stable species-specific vertical habitats in planktonic foraminifera, Journal of Plankton Research, 00(00), 1-15, doi:10.1093/plankt/fbz002, 2019.
  • Mezger, E. M., de Nooijer, L. J., Bertlich, J., Bijma, J., Nürnberg, D., and Reichart, G.-J.: Planktonic foraminiferal spine versus shell carbonate Na incorporation in relation to salinity, Biogeosciences Discuss., https://doi.org/10.5194/bg-2018-454, accepted, 2019.  
  • Bertlich, J., Nürnberg, D., Hathorne, E. C., de Nooijer, L. J., Mezger, E. M., Kienast, M., Nordhausen, S., Reichart, G.-J., Schönfeld, J., and Bijma, J.: Salinity control on Na incorporation into calcite tests of the planktonic foraminifera Trilobatus sacculifer – evidence from culture experiments and surface sediments, Biogeosciences, 15, 5991-6018, https://doi.org/10.5194/bg-15-5991-2018, 2018. 
  • Bertlich, J., Nürnberg, D., Hathorne, E.C., Groeneveld, J., Kucera, M., Siccha, M., and Meilland, J.: Field application of Na/Ca as salinity proxy in planktonic foraminifera, Goldschmidt Abstracts, 179, USA, Boston, 2018. 
  • Bertlich, J., Nürnberg, D., Bijma, J., and Hathorne, E.: Evaluating planktic foraminiferal Na/Ca as an environmental proxy. 12th International Conference on Paleoceanography, the Netherlands, Utrecht, 29 Aug. - 2 Sep. 2016.

To top