Dra Camila Sukekava

Research Interests

• Biogeochemical cycles of trace metals in oceanic, coastal, and estuarine waters, with emphasis on iron and humic substances.
• Characterization and quantification of natural organic ligands that influence bioavailability, solubility, and reactivity of trace elements.
• Trace metals cycling in hydrothermal environments.

Education

PhD
Federal University of Rio Grande (FURG), Brazil, 2019-2023
Thesis: The role of humic substances in the biogeochemical cycle of dissolved iron: discoveries and perspectives

Master in Chemical and Technology Science
Universidad de las Islas Baleares (UIB), Spain, 2017-2018
Research Project: A new voltammetric method for the measurement of the effect of humic substances in iron speciation. Application to Surface Arctic waters

Master in Chemical, Physical, and Geological Oceanography
Federal University of Rio Grande (FURG), Brazil, 2015-2017
Research Project: Organic speciation of iron in the Brazilian Southern Shelf

B.A. in Oceanology
Federal University of Rio Grande (FURG), Brazil, 2009-2014
Project: Use of fish as biomonitors in the Patos Lagoon estuary

Publications

1. Belyaev, O., Huertas, I.E., Navarro, G., Amaya-Vías, S., De La Paz, M., Sparaventi, E., Heredia, S., Sukekava, C.F., Laglera, L.M., Tovar-Sánchez, A., 2024. Hydrothermal alteration of seawater biogeochemistry in Deception Island (South Shetland Islands, Antarctica). Front. Mar. Sci. 11, 1432122. https://doi.org/10.3389/fmars.2024.1432122
2. García-Veira, D., Sukekava, C.F., Sparaventi, E., Navarro, G., Huertas, I.E., Tovar-Sánchez, A., Laglera, L.M., 2024. A first estimation of the role of penguin guano on copper cycling and organic speciation in Antarctic coastal waters. Sci. Total Environ. 912, 169266. https://doi.org/10.1016/j.scitotenv.2023.169266
3. Sukekava, C.F., Downes, J., Filella, M., Vilanova, B., Laglera, L.M., 2024. Ligand exchange provides new insight into the role of humic substances in the marine iron cycle. Geochim. Cosmochim. Acta 366, 17–30. https://doi.org/10.1016/j.gca.2023.12.007
4. Sukekava, C.F., Andrade, C.F.F., De Niencheski, L.F.H., Souza, M.S., De Laglera, L.M., 2023. Macronutrients, iron, and humic substances summer cycling over the extended continental shelf of the South Brazil Bight. Sci. Total Environ. 865, 161182. https://doi.org/10.1016/j.scitotenv.2022.161182
5. Laglera, L.M., Tovar-Sanchez, A., Sukekava, C.F., Naik, H., Naqvi, S.W.A., Wolf-Gladrow, D.A., 2020. Iron organic speciation during the LOHAFEX experiment: Iron ligands release under biomass control by copepod grazing. J. Mar. Syst. 207, 103151. https://doi.org/10.1016/j.jmarsys.2019.02.002
6.   Laglera, L.M., Sukekava, C., Slagter, H.A., Downes, J., Aparicio-Gonzalez, A., Gerringa, L.J.A., 2019. First Quantification of the Controlling Role of Humic Substances in the Transport of Iron across the Surface of the Arctic Ocean. Environ. Sci. Technol. https://doi.org/10.1021/acs.est.9b04240
7. Slagter, H.A., Laglera, L.M., Sukekava, C., Gerringa, L.J.A., 2019. Fe-Binding Organic Ligands in the Humic-Rich TransPolar Drift in the Surface Arctic Ocean Using Multiple Voltammetric Methods. J. Geophys. Res. Ocean. 124, 1491–1508. https://doi.org/10.1029/2018JC014576
8. Sukekava, C., Downes, J., Slagter, H.A., Gerringa, L.J.A., Laglera, L.M., 2018. Determination of the contribution of humic substances to iron complexation in seawater by catalytic cathodic stripping voltammetry. Talanta 189, 359–364. https://doi.org/10.1016/j.talanta.2018.07.021

 

Presentation/ Poster Conference

1. Laglera, L.M., Sukekava, C., Gerringa, L.J.A. (2019) Voltammetric detection of iron-humic complexes. A powerful tool to quantify the role of humics in the biogeochemical cycle of iron in seawater. [Oral Presentation] In: International conference of IHSS Nordic-Baltic Chapter, 2019, Riga, Latvia.
2. Laglera, L.M., Sukekava, C., Downes, J., Slagter, H.A., Aparicio-Gonzalez, A., Gerringa, L.J.A. (2019) First Quantification of the Controlling Role of Humic Substances in the Transport of Iron Across the Surface of the Arctic Ocean. [Oral Presentation] In: International conference of IHSS Nordic-Baltic Chapter, 2019, Riga, Latvia.
3.  Sukekava, C., Laglera, L.M., Gerringa, L.J.A., Slagter, H.A., Downes, J. (2019) A new voltammetric method for the measurement of the effect of humic substances in iron speciation. Application to Surface Arctic waters. [Oral Presentation] In: 6º Encuentro Brasileño sobre Especiación Química (EspeQBrasil 2019), 2019, Bahia, Brazil.
4.  Sukekava, C., Koch, F., Pausch, F., Pagnone, A., Wilhelms-Dick, D., Laglera, L.M., Meyer, B., Trimborn, S. (2019) From the origin of feces - The impact of krill and salp fecal pellets on iron chemistry and iron bioavailability to Southern Ocean phytoplankton. [Oral Presentation] In: The Future Oceans 2. IMBeR Open Science Conference, 2019, Brest, France.
5. Slagter, H.A., Laglera, L.M., Gerringa, L.J.A., Sukekava, C., Downes, J. (2020) The Organic Ties of Iron - Organic Iron speciation related to humic substances and microbial interactions. [Oral Presentation] In: Ocean Sciences Meeting, 2020, San Diego, United States.
6. Sukekava, C., Laglera, L.M., Meyer, B., Trimborn, S., Koch, F., Pausch, F., Pagnone, A., Wilhelms-Dick, D. (2020) From the origin of Feces - The impact of krill and salp fecal pellets on iron chemistry and iron bioavailability to Southern Ocean phytoplankton. [Poster] In: Ocean Sciences Meeting, 2020, San Diego, United States.
7. Laglera, L.M., Sukekava, C., Gerringa, L.J.A. (2022) Recent developments by voltammetry in the quantification of the role of humic substances in the solubility of iron in the ocean. [Oral Presentation] In: XVII Seminario Ibérico de Química Marina, 2022, Las Palmas, Spain.
8.  Sukekava, C., Downes, J., Vilanova, B., Filella, M., Laglera, L.M. (2023) An insight into the real complexity of the sequestration of terrigenous iron by biological ligands. [Oral Presentation] In: ASLO Aquatic Sciences Meeting 2023, 2023, Palma de Mallorca, Spain.
9.  Sukekava, C., Laglera, L.M., Filella, M., Vilanova, B. (2023) Redefining the role of humic substances in oceanic iron biogeochemistry using competitive ligand exchange. [Poster] In: 21st Swiss Geoscience Meeting 2023, 2023, Mendrisio, Switzerland.
10. Sukekava, C., Laglera, L.M., Downes, J., Naik, H., Naqvi, S.W.A., Wolf-Gladrow, D.A. (2020) Organic iron-binding ligands in Brazilian Southern Shelf. [Oral Presentation] In: TRIATLAS 1st Annual Meeting, 2020, Cape Verde.