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


Ducklow, HW, Stukel, MR, Eveleth, R, Doney, SC, Jickells, T, Schofield, O, Baker, AR, Brindle, J, Chance, R, and Cassar, N. "Spring-summer net community production, new production, particle export and related water column biogeochemical processes in the marginal sea ice zone of the Western Antarctic Peninsula 2012-2014." Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences 376, no. 2122 (June 2018).
Wang, S, Lin, Y, Gifford, S, Eveleth, R, and Cassar, N. "Linking patterns of net community production and marine microbial community structure in the western North Atlantic." The Isme Journal (May 2018).
Moreno, CM, Lin, Y, Davies, S, Monbureau, E, Cassar, N, and Marchetti, A. "Examination of gene repertoires and physiological responses to iron and light limitation in Southern Ocean diatoms." Polar Biology 41, no. 4 (April 2018): 679-696.
Simonin, M, Colman, BP, Tang, W, Judy, JD, Anderson, SM, Bergemann, CM, Rocca, JD, Unrine, JM, Cassar, N, and Bernhardt, ES. "Plant and Microbial Responses to Repeated Cu(OH)2 Nanopesticide Exposures Under Different Fertilization Levels in an Agro-Ecosystem." Frontiers in Microbiology 9 (January 2018): 1769-null.

Recent Grants


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


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