Leadership & Staff Colleen Durkin Scientist [javascript protected email address] My research focuses on the ecology of carbon export from the surface ocean into the deep sea. Our lab seeks to answer three big questions: 1) What controls the export of surface phytoplankton production? 2) How do deep ocean ecosystems transform sinking particles, either enhancing or attenuating carbon flux? 3) How can advanced instrumentation be used to make detailed biological observations of carbon export at regional and global scales? Production by phytoplankton in the surface ocean, and the eventual export of this carbon, is a key component of the global carbon cycle but is difficult to monitor, quantify, and predict. These difficulties stem, in part, from the complex ecological interactions involved in generating and transporting sinking carbon. My research seeks to resolve these microscopic (and often times beautiful) interactions and the organisms involved and integrated them into our quantitative understanding of the ocean’s carbon cycle. This research is by its very nature interdisciplinary, and we incorporate cell biology, molecular genetics, microscopy, automated image analysis, biogeochemistry, machine learning, and engineering to answer these questions. Professional Experience 2015-2021 Research Faculty, Moss Landing Marine Laboratories 2012-2015 Postdoctoral Scholar, Woods Hole Oceanographic Institution 2012 PhD, University of Washington, Oceanography 2008 M.S., University of Washington, Oceanography 2004 B.S., University of Washington, Biology and Oceanography
Stephens, B. M., C. A. Durkin, G. Sharpe, T. T. Nguyen, J. Albers, M. L. Estapa, D. K. Steinberg, N. M. Levine, S. M. Gifford, C. A. Carlson, P. W. Boyd, and A. E. Santoro. 2024. Direct observations of microbial community succession on sinking marine particles. The ISME Journal, 18(1). https://doi.org/10.1093/ismejo/wrad010
Estapa, M. L., C. A. Durkin, W. H. Slade, C. L. Huffard, S. P. O'Neill, and M. M. Omand. 2024. A new, global optical sediment trap calibration. Limnology and Oceanography: Methods, 22(2): 77–92. https://doi.org/10.1002/lom3.10592
Michaud, C.A., C.L. Huffard, K.L. Smith Jr, and C.A. Durkin. 2022. Changes in phytoplankton and biomineral content of particles during episodic fluxes to abyssal depth. Limnology and Oceanography Letters, 7: 342–353, https://doi.org/10.1002/lol2.10255
Durkin, C.A., I. Cetinic, M. Estapa, Z. Ljubesic, M. Mucko, A. Neeley, and M. Omand. 2022. Tracing the path of carbon export in the ocean through DNA sequencing of individual sinking particles. The ISME Journal, 16: 1896–1906. https://doi.org/10.1038/s41396-022-01239-2
Steinberg, D.K., K. Stamieszkin, A.E. Maas, C.A. Durkin, U. Passow, M.L. Estapa, M.M. Omand, A.M.P. McDonnell, L. Karp-Boss, M. Galbraith, and D.A. Siegel. 2022. The outsized role of salps in carbon export in the subarctic northeast Pacific Ocean. Global Biogeochemical Cycles, 37(1): 1–17. https://doi.org/10.1029/2022GB007523
Durkin, C.A., K.O. Buesseler, I. Cetinic, M. Estapa, R.P. Kelley, and M. Omand. 2021. A visual tour of carbon export by sinking particles. Global Biogeochemical Cycles, 35(10): 1–17. https://doi.org/10.1029/2021GB006985
Huffard, C.L., C.A. Durkin, S.E. Wilson, P.R. McGill, R. Henthorn, and K.L. Smith Jr. 2020. Temporally-resolved mechanisms of deep-ocean particle flux and impact on the seafloor carbon cycle in the northeast Pacific. Deep Sea Research Part II Topical Studies in Oceanography, 173: 1–17. https://doi.org/10.1016/j.dsr2.2020.104763
Omand, M., J. Sugar, K. Buesseler, C. Durkin, M. Estapa, I. Cetinic, E. D'Asaro, C. Lee, H.T. Rossby, A. Wang, A. Adams, K. Katija, and J.P. Barry. (2019). Upcoming EXPORTS technology: Trap cameras, Snocam, and Minions. NASA EXPORTS Science Meeting, Williamsburg, May 6–10, 2019. EXport Processes in the Ocean from Remote Sensing.
Preston, C.M., C.A. Durkin, and K.M. Yamahara. 2019. DNA metabarcoding reveals organisms contributing to particulate matter flux to abyssal depths in the North East Pacific ocean. Deep Sea Research Part II Topical Studies in Oceanography, 173: 1–17. https://doi.org/10.1016/j.dsr2.2019.104708