Dr. Martha Gledhill
Senior Scientist
Topic 6: Marine and polar Life
RD2: Marine Biogeochemistry
RU CH Chemical Oceanography
WG Water Column Biogeochemistry
Office:
Room: 307 / Build. 12 - 3. floor
Tel.: + 49 (0) 431 600 1293
Fax: + 49 (0) 431 600 1292
E-mail: mgledhill(at)geomar.de
Address:
GEOMAR Helmholtz Centre for Ocean Research
Wischhofstrasse 1-3, Build. 12
D-24148 Kiel - Germany
Memberships, Services, Activities
- Member of the Task Group of Chemical Speciation within the Joint Committee on the Properties of Seawater (JCS)
- Contributing to the development of BioGeoSCAPES
- Member of American Society for Limnology and Oceanography
- Member of The Royal Society of Chemistry; Chartered Chemist
Research Interests
Marine Bioinorganic Chemistry
Marine bioinorganic chemistry is an interdisciplinary research field in marine science that links elemental biogeochemical cycles and the chemistry of elements in the ocean with microbial cellular metabolism. I focus on the trace element iron, as it limits phytoplankton productivity in about 30% of the surface ocean. I develop and apply novel analytical approaches to make chemical discoveries that improve our understanding of the way the chemistry of the ocean influences biological productivity in the context of ocean heating and increased atmospheric CO2 concentrations.
Projects
- NeuroMetalle (2022 - 2025) | Website: bluehealthtech.de/projekte/neurometalle/
- SO305 BIOCAT-IIOE2 | Website: click here for more information
- M206 Amazon-Geotraces-2 | Website: für mehr Infos klicken Sie hier
- EMS-FORE (2021-2026) | Website: geomar.de/en/ems-fore
- PIANO: Prokaryote-phytoplankton interactions in Antarctic ice sheet, melting environments: the key role of iron
- Metallobiomolecules in the Ocean
Vita
- 2013 - today: GEOMAR Helmholtz Centre for Ocean Research Kiel | Senior Scientist
- 2004 - 2013: University of Southampton | Research Fellow
- 1995 - 2004: University of Plymouth | Postdoc, Senior Lecturer
- 1995: University of Liverpool | PhD Chemical Oceanography
Funding
- 2023 - 2025: NEUROMETALLE - Element and isotope signatures in proteins as a diagnostic tool for neurodegenerative diseases (BMBF).
- 2019 - 2022: NICA - Development of a consistent thermodynamic model of trace element - organic matter interactions in the ocean (DFG).
Publications
Click here for the complete list of publications.
- Wang, X., Browning, T.J., Achterberg, E.P., Gledhill, M. (2024). Different elemental stoichiometries of Fe-limited Trichodesmium when grown under inorganic and organic phosphorus sources. Limnology and Oceanography, 69, 2881–2895.
DOI: https://doi.org/10.1002/lno.12716 - Saito, M., Alexander, H., Benway, H., Boyd, P., Gledhill, M. , Kujawinski, E., Levine, N., Maheigan, M., Marchetti, A., Obernosterer, I., Santoro, A., Shi, D., Suzuki, K., Tagliabue, A., Twining, B., Maldonado, M. (2024). The Dawn of the BioGeoSCAPES Program: Ocean Metabolism and Nutrient Cycles on a Changing Planet. Oceanography, 37 (2), pp. 162-166.
DOI: https://doi.org/10.5670/oceanog.2024.417 - Turner, D.R., Croot, P.L., Dickson, A.G., Gledhill, M., 2024. Physicochemical controls on seawater. The Oceans and Marine Geochemistry, Treatise on Geochemistry, Elsevier Academic Press Inc., 4, 1-51.
DOI: https://doi.org/10.1016/B978-0-323-99762-1.00035-8 - Chen, X.-G., Gledhill, M., Lohan, M.C., Milne, A., Achterberg, E.P. (2024). Surface ocean biogeochemistry and deep ocean circulation control relationships between nutrient-type trace metals (Cd, Ni, Cu, and Zn) and nutrients in the South Atlantic Ocean near the subtropical front. Geochimica et Cosmochimica Acta, 370, pp. 144-160.
DOI: https://doi.org/10.1016/j.gca.2024.01.001 - Lodeiro, P., Rey-Castro, C., David, C., Humphreys, M.P., Gledhill, M. (2023). Proton Binding Characteristics of Dissolved Organic Matter Extracted from the North Atlantic. Environ. Sci. Technol., 57, 21136–21144.
DOI: https://doi.org/10.1021/acs.est.3c01810
