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Eva-Maria Zetsche

Eu-postdoc (marie curie)

Eva-Maria Zetsche
Eu-postdoc (marie curie)
eva-maria.zetsche@gu.se
+46 31 786 3773

Room number: 4128
Postal Address: Box 461, 40530 Göteborg
Visiting Address: Carl Skottsbergs gata 22B , 41319 Göteborg


Department of Marine Sciences (More Information)
Box 461
405 30 Göteborg
Visiting Address: Carl Skottsbergs gata 22 B , 413 19 Göteborg

About Eva-Maria Zetsche

RESEARCH
My main research interest lies in applying a specialized form of microscopy, namely digital holographic microscopy, to the field of marine ecology and in doing so finding novel applications for the technique. I therefore work on a wide range of organisms and particles combining prior knowledge gained throughout my research career with this unique tool. This includes work on algal cells and cyanobacteria but also the polymeric substances they and other organisms can extrude, such as extracellular polymeric substances, transparent exopolymeric particles and coral mucus. In lieu of this work, I sustain my interests in better understanding benthic communities and their ecosystem function, addressing benthic-pelagic interactions such as the organic matter cycling of coral reefs and marine snow aggregate fluxes.

Research Topics:
• Digital holographic microscopy and other microscopy techniques
• Marine snow aggregates and the biological carbon pump
• Marine gel characterization (TEP, CSP, EPS)
• Algal cell research (Classification, identification)
• Cable bacteria and long-distance electron transport in the sediment

• Coral reef ecology
• Coastal ecosystems
• Sediment biogeochemistry
• Ecosystem functioning

PROJECTS

BIPHA: Bio-physical processes around marine snow aggregates
Advancing our understanding of biologically driven sequestration of carbon into the ocean is crucial given the rapidly increasing atmospheric CO2 concentrations. Diatoms are the most common type of phytoplankton and, as the ocean’s biological carbon pump, a key component in this process. Diatom aggregates, in particular, comprise a significant fraction of sinking particulate matter drawing down atmospheric carbon to the depths of the ocean. Diatoms produce transparent exopolymeric particles (TEP), a gel-like sticky sugary substance, which plays a significant role in the subsequent coagulation of diatoms into aggregates as their blooms terminate. These sinking aggregates are composed of diatoms, detritus and faecal pellets and are so-called marine snow aggregates.

Within this project, we will use recent innovations in technology to study the role of TEP content for:

• Scavenging of particles
• Flow and diffusion within and around diatom aggregates

We combine particle image velocimetry (PIV), microsensors techniques and digital holographic microscopy to gain a better understanding of diatom aggregates and their role within the global carbon cycle.

 

RECENT SELECTED PUBLICATIONS

Linders T, Infantes E, Joyce A, Karlsson T, Ploug H, Hassellöv M, Sköld M and Zetsche E (2018). Particle sources and transport in stratified Nordic coastal seas in the Anthropocene. Elementa: Science of the Anthropocene 6:29. doi:10.1525/elementa.149

Zetsche E, El Mallahi A and Meysman FJR (2016). Digital holographic microscopy: a novel tool to study the morphology, physiology and ecology of diatoms. Diatom Research 31(1):1-16. doi:10.1080/0269249X.2016.1140679

Zetsche E, Baussant T, Meysman FJR and van Oevelen D (2016). Direct visualization of mucus production by the cold-water coral Lophelia pertusa with digital holographic microscopy. PLOS ONE. 11(2): e0146766. doi:10.1371/journal.pone.0146766

Zetsche E and Ploug H (2015). Marine Chemistry special issue: Particles in aquatic environments: from invisible exopolymers to sinking aggregates. Marine Chemistry 175:1-4.
http://dx.doi.org/10.1016/j.marchem.2015.04.008

Zetsche E, El Mallahi A, Dubois F, Yourassowsky C, Kromkamp JC, and Meysman FJR (2014). Imaging-in-Flow: Digital holographic microscopy as a novel tool to detect and classify nanoplanktonic organisms. Limnology and Oceanography: Methods, 12: 757-775. doi: 10.4319/lom.2014.12.757

 

For a full list of publications please see one of the options below:
ResearchGate

Google Scholar

Latest publications

High single cell diversity in carbon and nitrogen assimilation by a chain‐forming diatom across a century
Malin Olofsson, Olga Kourtchenko, Eva-Maria Zetsche, Hannah K. Marchant, Martin J. Whitehouse et al.
Environmental Microbiology, Journal article 2018
Journal article

Long-distance electron transport occurs globally in marine sediments
L. D. W. Burdorf, A. Tramper, D. Seitaj, L. Meire, S. Hidalgo-Martinez et al.
Biogeosciences, Journal article 2017
Journal article

Showing 1 - 6 of 6

2018

High single cell diversity in carbon and nitrogen assimilation by a chain‐forming diatom across a century
Malin Olofsson, Olga Kourtchenko, Eva-Maria Zetsche, Hannah K. Marchant, Martin J. Whitehouse et al.
Environmental Microbiology, Journal article 2018
Journal article

2017

Long-distance electron transport occurs globally in marine sediments
L. D. W. Burdorf, A. Tramper, D. Seitaj, L. Meire, S. Hidalgo-Martinez et al.
Biogeosciences, Journal article 2017
Journal article

2016

Showing 1 - 6 of 6

Page Manager: Bo Johannesson|Last update: 7/1/2015
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