Nicolas Cassar

Nicolas Cassar

Associate Professor of Biogeochemistry

Primary Appointment

Earth & Ocean Sciences Division

Nicolas Cassar's research focuses on environmental biogeochemistry and physiology, with the objective of constraining the mechanisms governing carbon cycling and climate. Current research interests include ocean carbon cycles and productivity; carbon acquisition mechanisms in marine phytoplankton and implications for climate change and paleo-CO2 reconstruction; and global carbon cycle and ocean-atmosphere fluxes. His scientific approach is interdisciplinary, integrating field observations, laboratory experiments, modeling and theory.

In The News

SELECTED PUBLICATIONS

Lin, Y, Gifford, S, Ducklow, H, Schofield, O, and Cassar, N. "Towards Quantitative Microbiome Community Profiling Using Internal Standards." Applied and Environmental Microbiology 85, no. 5 (March 2019).
Berthelot, H, Duhamel, S, L'Helguen, S, Maguer, J-F, Wang, S, Cetinić, I, and Cassar, N. "NanoSIMS single cell analyses reveal the contrasting nitrogen sources for small phytoplankton." The Isme Journal 13, no. 3 (March 2019): 651-662.
Tang, W, Wang, S, Fonseca-Batista, D, Dehairs, F, Gifford, S, Gonzalez, AG, Gallinari, M, Planquette, H, Sarthou, G, and Cassar, N. "Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production." Nature Communications 10, no. 1 (February 19, 2019): 831-null.
Li, Z, and Cassar, N. "Theoretical Considerations on Factors Confounding the Interpretation of the Oceanic Carbon Export Ratio." Global Biogeochemical Cycles 32, no. 11 (November 2018): 1644-1658.
Nevison, C, Munro, D, Lovenduski, N, Cassar, N, Keeling, R, Krummel, P, and Tjiputra, J. "Net Community Production in the Southern Ocean: Insights From Comparing Atmospheric Potential Oxygen to Satellite Ocean Color Algorithms and Ocean Models." Geophysical Research Letters 45, no. 19 (October 16, 2018): 10-559.

Recent Grants

Courses

EOS 364S: Changing Oceans (EOS 364S: Changing Oceans)
EOS 394: Research Independent Study (EOS 394: Research Independent Study)
EOS 791: Independent Study (EOS 791: Independent Study)
EOS 525: Fundamentals of Water Biogeochemistry and Pollution (EOS 525: Fundamentals of Water Biogeochemistry and Pollution)
EOS 393: Research Independent Study (EOS 393: Research Independent Study)

Video: Wang recalls NASA research cruise

 

Contact Information

Box 90227
Durham, NC 27708
Grainger Hall, 9 Circuit Drive (Eh5118), Nicholas School Of The Environment
Durham, NC 27708

Education

Ph.D., University of Hawaii at Manoa (2003)
B.S., McGill University (Canada) (1997)