Specialization

• Marine Ecology and Evolution
  
• Oceanography

Research

I study phytoplankton...the microscopic algae that give the ocean its greenish color and that photosynthesize, removing CO2 from the atmosphere. Specifically I'm interested in how light, nutrients, and temperature influence phytoplankton growth and taxonomic composition, including the development of "red tides" (harmful algal blooms).

Publications

Richardson, T.L. 2018. Mechanisms, pathways, and the role of small phytoplankton in carbon export from the surface ocean. Invited review for the Annual Reviews of Marine Science: https://doi.org/10.1146/annurev-marine-121916-063627.

Cunningham, B.R., M.J. Greenwold, E.M. Lachenmyer, K.M. Heidenreich, A.C. Davis, J.L. Dudycha and T.L. Richardson. 2018. Light capture and pigment diversity in marine and freshwater cryptophytes. Journal of Phycology: https://onlinelibrary.wiley.com/doi/epdf/10.1111/jpy.12816.

Faulkner, S.T., C.M. Rekully, E.M. Lachenmyer, E. Kara, T.L. Richardson, T.J. Shaw, and M.L. Myrick. 2018. Single-cell and bulk fluorescence excitation signatures of seven phytoplankton species during nitrogen depletion and resupply. Applied Spectroscopy: https://journals.sagepub.com/doi/full/10.1177/000370281881209047.

Rekully, C.M., S.T. Faulkner, E. Kara, T.L. Richardson, T.J. Shaw, and M.L. Myrick. 2018. Asymmetric vs. symmetric filter wheels and associated processing algorithms: Results from asynchronous fluorescence imaging photometer measurements of phytoplankton. Applied Spectroscopy: https://doi.org/10.1177/0003702818792285.

MacIntyre, H.L., J.J. Cullen, S. Rastin, M. Waclawik, K.J. Franklin, N. Poulton, L. Lubelczyk, K. McPhee, T.L. Richardson, E. Van Meerssche, and B. Petri. 2018. Inter-laboratory validation of the Serial Dilution Culture – Most Probable Number method for enumerating viable phytoplankton. Journal of Applied Phycology: https://doi.org/10.1007/s10811-018-1541-z.

Rekully, C.M., S.T. Faulkner, E.M. Lachenmyer, B.R. Cunningham, T.J. Shaw, T.L. Richardson and M.L. Myrick. 2017. Fluorescence excitation spectroscopy for phytoplankton species classification using an all-pairs method: Characterization of a system with unexpectedly low rank. Applied Spectroscopy, DOI: 10.1177/0003702817741278.

Lawrenz, E. and T.L. Richardson. 2017. Differential effects of changes in spectral irradiance on photoacclimation, primary productivity and growth in Rhodomonas salina (Cryptophyceae) and Skeletonema costatum (Bacillariophyceae) in simulated blackwater environments. Journal of Phycology 53: 1241-1254. DOI: 10.1111/jpy.12578.

Vernet, M., T.L. Richardson, K. Metfies, E-M. Nöthig, and I. Peeken. 2017. Models of plankton community changes during a warm anomaly in Arctic waters show altered trophic pathways with minimal changes in carbon export. Frontiers in Marine Science 31 May 2017: https://doi.org/10.3389/fmars.2017.00160.