Annette Hynes


Research Scientist

ahynes at

I investigate picophytoplankton distribution and diversity across physical gradients using the SeaFlow underway flow cytometer.


  • 2009 Ph.D in Biological Oceanography – Massachusetts Institute of Technology-Woods Hole Oceanographic Institution Joint Program in Oceanography, Cambridge, MA. Thesis title: Diversity of the Marine Cyanobacterium Trichodesmium: Characterization of the Woods Hole Culture Collection and Quantification of Field Populations, 162 pp. DSpace@MIT.
  • 1998 B.Sc in Biological Sciences and Mathematics – University of Nebraska-Lincoln, Lincoln, NE

Positions Held

  • Research Scientist, School of Oceanography, University of Washington, USA, 2018-present
  • Research Professional, Department of Marine Sciences, University of Georgia, USA, 2016-2018
  • Biology Education Specialist, Peace Corps Response, KwaZulu-Natal, South Africa, 2015
  • Postdoctoral Research Associate, Department of Marine Sciences, University of Georgia, USA, 2010-2015

Journal Publications

  • Gradoville, M. R., M. Dugenne, A. M. Hynes, J. P. Zehr, A. E. White. 2022. Empirical relationship between nifH gene abundance and diazotroph cell concentration in the North Pacific Subtropical Gyre. Journal of Phycology, 58:829–833, DOI: 10.1111/jpy.13289.

  • Henderikx-Freitas, F., M. Dugenne, F. Ribalet, A. Hynes, B. Barone, D. M. Karl, A. E. White. 2020. Diel variability of bulk optical properties associated with the growth and division of small phytoplankton in the North Pacific Subtropical Gyre. Applied Optics, 59:6702–6716, DOI: 10.1364/AO.394123.

  • Ribalet, F., C. Berthiaume, A. Hynes, J. Swalwell, M. Carlson, S. Clayton, G. Hennon, C. Poirier, E. Shimabukuro, A. White, E. V. Armbrust. 2019. SeaFlow data v1, high-resolution abundance, size and biomass of small phytoplankton in the North Pacific. Scientific Data, 6:277, DOI: 10.1038/s41597-019-0292-2.

  • Wilson, S. T., N. J. Hawco, E. V. Armbrust, B. Barone, K. M. Björkman, A. K. Boysen, M. Burgos, T. J. Burrell, J. R. Casey, E. F. DeLong, M. Dugenne, S. Dutkiewicz, S. T. Dyhrman, S. Ferrón, M. J. Follows, R. K. Foreman, C. P. Funkey, M. J. Harke, B. A. Henke, C. N. Hill, A. M. Hynes, A. E. Ingalls, O. Jahn, R. L. Kelly, A. N. Knapp, R. M. Letelier, F. Ribalet, E. M. Shimabukuro, R. K. S. Tabata, K. A. Turk-Kubo, A. E. White, J. P. Zehr, S. John, D. M. Karl. 2019. Kīlauea lava fuels phytoplankton bloom in the North Pacific Ocean. Science, 365:1040–1044, DOI: 10.1126/science.aax4767.

  • Hynes, A. M., K. L. Rhodes, and B. J. Binder. 2015. Assessing cell cycle-based methods of measuring Prochlorococcus division rates using an individual-based model. Limnology and Oceanography Methods, 13:640–650, DOI: 10.1002/lom3.10054.

  • Hynes, A. M., B. J. Blythe, and B. J. Binder. 2015. An individual-based model for the analysis of Prochlorococcus diel cycle behavior. Ecological Modelling, 301:1–15, DOI: 10.1016/j.ecolmodel.2015.01.011.

  • Hynes, A. M., E. A. Webb, S. C. Doney, and J. B. Waterbury. 2012. Comparison of cultured Trichodesmium (Cyanophyceae) with species characterized from the field. Journal of Phycology, 47:196–210, DOI: 10.1111/j.1529-8817.2011.01096.x.

  • Chappell, P. D., J. W. Moffett, A. M. Hynes, and E. A. Webb. 2012. Molecular evidence of iron limitation and availability in the global diazotroph Trichodesmium. ISME Journal, 6:1728–1739, DOI: 10.1038/ismej.2012.13.

  • Luo, Y.-W., S. C. Doney, L. A. Anderson, M. Benavides, I. Berman-Frank, A. Bode, S. Bonnet, K. H. Boström, D. Böttjer, D. G. Capone, E. J. Carpenter, Y. L. Chen, M. J. Church, J. E. Dore, L. I. Falcón, A. Fernández, R. A. Foster, K. Furuya, F. Gómez, K. Gundersen, A. M. Hynes, D. M. Karl, S. Kitajima, R. J. Langlois, J. LaRoche, R. M. Letelier, E. Marañón, D. J. McGillicuddy Jr., P. H. Moisander, C. M. Moore, B. Mouriño-Carballido, M. R. Mulholland, J. A. Needoba, K. M. Orcutt, A. J. Poulton, E. Rahav, P. Raimbault, A. P. Rees, L. Riemann, T. Shiozaki, A. Subramaniam, T. Tyrrell, K. A. Turk-Kubo, M. Varela, T. A. Villareal, E. A. Webb, A. E. White, J. Wu, J. P. Zehr. 2012. Database of diazotrophs in global ocean: abundance, biomass and nitrogen fixation rates. Earth System Science Data, 4:47–73, DOI: 10.5194/essd-4-47-2012.

  • Hynes, A. M., P. D. Chappell, S. T. Dyhrman, S. C. Doney and E. A. Webb. 2009. Cross-basin comparison of phosphorus stress and nitrogen fixation in Trichodesmium. Limnology and Oceanography, 54:1438–1448, DOI: 10.4319/lo.2009.54.5.1438.