Dr. Prosper Kojo Zigah

Department of Chemistry, Biochemistry and Physics,

Email: [email protected]

Qualifications

2012 Ph.D., University of Minnesota, USA

2006 M.Sc., University of Nottingham, UK

2005 M.Sc., Wageningen University, the Netherlands

2002 B.Sc., University of Cape Coast, Ghana

Publications (Selected)

1. Zigah, Prosper. (2024). Biogeochemical Transformation in Lake Superior: A Radiocarbon and Stable Isotope Study. 
2. Zigah, Prosper & Minor, Elizabeth & Werne, Josef & McCallister, Shannon. (2024). Assessing the Composition of Particulate Organic Matter and Zooplankton Food Sources in Lake Superior and Size gradient of Aquatic Systems.. 10.9734/bpi/crpbs/v5. 
3. Minor, E.C., A. McNichol, P.K. Zigah and J. P. Werne. (2020) Corrigendum to “An Investigation of size-fractionated organic matter from Lake Superior and a tributary stream using radiocarbon, stable isotopes, and NMR” by Zigah, P.K., Minor, E.C., Abdullah, H.A.N., Werne, J.P. and Hatcher, P.G.: A reanalysis using recent radiocarbon blank information [Geochim. Cosmochim. Acta 127 (2014) 264–284], Geochim. Cosmochim. Acta, https://doi.org/10.1016/j.gca.2019.11.006.
4. Zigah, Prosper & Aluwihare, Lihini. (2018). Constraining radiocarbon distribution within major components of marine DOC. 
5. Zigah, Prosper & Werne, Josef. (2018). Heterogeneous Sources within Lake Superior Suspended Particulate Organic Matter revealed by Serial Thermal Oxidation Radiocarbon Analysis. 
6. Zigah, Prosper & Aluwihare, Lihini. (2018). Serial Thermal Oxidation Radiocarbon Analyses of Marine Dissolved Organic Carbon (DOC): Insights into the Cycling of major DOC fractions. 
7. Zigah, Prosper & Werne, Josef. (2017). Seasonal dynamics in the fluxes and isotopic composition of settling particulate organic matter in Lake Superior: Implications for the interpretation of sedimentary records.. 
8. Zigah, P.K., E.C. Minor, A. McNichol, L. Xu, and J. Werne. (2017) Constraining the sources and cycling of dissolved organic carbon in an oligotrophic lake using radiocarbon analyses. Geochim. Cosmochim. Acta, 208: 102-118, doi: 10.1016/j.gca.2017.03.021.
9. Zigah, P.K., A. McNichol, L. Xu, C. Johnson, Chiara Santinelli, David Karl and Daniel Repeta. (2017) Allochthonous sources and dynamic cycling of ocean dissolved organic carbon cycle revealed by carbon isotopes. Geophysical Research Letters. 44, 2407-2415,doi:10.1002/2016GL071348.
10. Hemingway, J.D. V. V. Galy, A.R. Gagnon, K. Grant, S. Z. Rosengard, G. Soulet, P.K. Zigah, A.P. McNichol. (2017) Assessing the blank carbon contribution, isotope mass balance, and kinetic isotope fractionation of the ramped pyrolysis/oxidation instrument at NOSAMS. Radiocarbon 59 (1): 179-193.
11. Zigah, P.K., K. Oswald, A. Brand, C. Dinkel, B. Werhli, and C. Schubert. (2015) Methane oxidation pathways and associated methanotrophic communities in the water column of a tropical lake. Limnology and Oceanography 60 (2): 553-572.
12. Zigah, P.K., E.C. Minor, H. Abdulla, J. Werne, and P. Hatcher. (2014) An investigation of size fractionated organic matter from Lake Superior and a tributary stream using radiocarbon, stable isotopes, and NMR. Geochim. Cosmochim. Acta 127: 264-284.
13. Naeher, S., F. Peterse, R. H. Smittenberg, H. Niemann, P.K. Zigah, and C.J. Schubert. (2014) Sources of glycerol dialkyl glycerol tetraethers (GDGTs) in catchment soils, water column and sediments of Lake Rotsee (Switzerland) – Implications for the application of GDGT-based proxies for lakes. Organic Geochemistry 66: 164-173.
14. Naeher, S., R. H. Niemann, F. Peterse, H. Smittenberg, P.K. Zigah, and C.J. Schubert. (2014) Tracing the methane cycle with lipid biomarkers in Lake Rotsee (Switzerland). Organic Geochemistry 66: 174-181.
15. Zigah, Prosper. (2014). Methane oxidation in tropical Lake Kivu and sub-alpine Lake Zug: Insights from molecular and isotopic compositions. 
16. Hongyu, L., E.C. Minor, P.K. Zigah. (2013) Diagenetic changes in Lake Superior sediments as seen from FTIR and 2D correlation spectroscopy. Organic Geochemistry 58: 125-136.
17. Zigah, P.K., E.C. Minor, J.P. Werne, and S.L. McCallister. (2012) An isotopic (Δ14C, δ13C, and δ15N) investigation of the composition of particulate organic matter and zooplankton food sources in Lake Superior and across a size-gradient of aquatic systems. Biogeosciences 9: 3663-3678.
18. Zigah, P.K., E.C. Minor, and J.P. (2012) Werne. Radiocarbon and stable-isotope geochemistry of organic and inorganic carbon in Lake Superior. Global Biogeochemical Cycles 26, GB1023, doi:10.1029/2011GB004132.
19. Zigah, P.K., E.C. Minor, J.P. Werne, and S.L. McCallister. (2011) Radiocarbon and stable carbon isotopic insights into provenance and cycling of carbon in Lake Superior. Limnology and Oceanography 56(3): 867-886.
20. Minor, Elizabeth & Zigah, Prosper & Mccallister, S.. (2009). Insights into the Lake Superior Carbon Cycle from Preliminary Radiocarbon Analyses of Water Column Carbon Pools. 

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