Dr. Susanna Theroux

Susanna Theroux is an ecologist specializing in microbiology and biogeochemistry. She received her B.A. in biology and geology from Williams College in 2005, and M.S. and Ph.D. in geological sciences from Brown University in 2009 and 2012, respectively. Dr. Theroux joined SCCWRP in 2016. Her present research focuses on the development of molecular methods (next-generation DNA and RNA sequencing) for bio-assessment, with a special focus on microbial community response to anthropogenic disturbance and the use of algal assemblages as indicators of environmental degradation.

Education

Ph.D., Geological Sciences, Brown University, 2012

M.S., Geological Sciences, Brown University, 2009 B.A., Biology and Geology, Williams College, 2005

Areas of Expertise

Dr. Theroux is a stream ecologist studying the interactions between microbial communities and nutrient stressors. She specializes in the use of high-throughput DNA sequencing to untangle microbial interactions, from nutrient food webs and carbon cycling to novel species characterization. She has worked in a range of aquatic systems with a special focus on photosynthetic microalgae as sentinels of anthropogenic disturbance and climate change.

Professional Experience

Scientist, Southern California Coastal Water Research Project Authority. Costa Mesa, CA. 2016-present.

Computational biology postdoctoral fellow, DOE Joint Genome Institute. Walnut Creek, CA. 2012-2015.

Graduate research assistant, Brown University Department of Geological Sciences. Providence, RI. 2007-2012.

Research technician, Woods Hole Marine Biological Laboratory. Woods Hole, MA. 2005-2007.

Honors and Awards

DOE Joint Genome Institute Director’s Discretion Proposal, 2014.

American Association of University Women (AAUW) Dissertation Fellowship, 2011.

Geological Society of America (GSA) Student Research Grant, 2010.

Brown-MBL Graduate Fellowship, Brown University, 2007-2009.

Professor Jack L. Strominger Graduate Fellowship, Brown University, 2008.

Freeman Foot Award (for thesis presentation), Williams College, 2005.

1960s Scholar in Geosciences, Williams College, 2005.

Student Scholar Athlete, Williams College, 2005.

Dean’s List, Williams College, 2001-2005.

Professional Societies and Certifications

American Association of University Women (AAUW).

Earth Science Women’s Network (ESWN) .

Sigma XI Scientific Research Society .

International Society for Microbial Ecology (ISME).

Phycological Society of America (PSA) .

Selected Presentations And Conference Proceedings

Theroux, S., Mazor, R., Stein, E., Sutula, M. 2017. A DNA-based approach for stream algal bioassessment: a case study in Southern California. Phycological Society of America Annual Meeting. Monterey Bay, CA.

Theroux, S. 2017. A High-Throughput DNA Sequencing Approach to Algae Monitoring Allows for Enhanced Bioassessment. Southern California SETAC Annual Conference. Dana Point, CA.

Theroux, S. 2016. California Statewide Algae Plan: Past, Present, and Future. California Aquatic Bioassessment Workgroup. Davis, CA.

Theroux, S., Hartman, W., Tringe, S. 2016. To Salinity and Beyond: Wetland Microbial Community Response to Restoration. California Estuarine Research Society Meeting. Long Beach, CA.

Theroux, S. 2016. California Statewide Algae Plan: Past, Present, and Future. California Aquatic Bioassessment Workgroup. Davis, CA. Theroux, S., Hartman, W., Tringe, S. 2015. Wetland Microbial Community Response to Restoration. Paper presented at the American Geophysical Union Fall Meeting. San Francisco, CA.

Theroux, S. Hartman, W., Tringe, S. 2015. Marsh Madness: Microbial Communities Driving Greenhouse Gas Cycling in Coastal Wetlands. Paper presented at the Genomics of Energy & Environment. Walnut Creek, CA.

Theroux, S. Hartman, W., He, S., Windham-Myers, L., Tringe, S. 2014. Microbial Diversity and Carbon Cycling in San Francisco Bay Wetlands. Paper presented at the Joint Aquatic Sciences Meeting. Portland, OR.

Theroux, S. 2014. Metagenomics and Metatranscriptomics: a Case Study from San Francisco Bay Wetlands. Paper presented at the Genomics of Energy & Environment. Walnut Creek, CA.

Theroux, S. Huang, Y., Amaral-Zettler, L. 2012. Haptophyte DNA and Alkenone Signatures During a Spring Algal Bloom Event in Lake George, ND, USA. Paper presented at the American Geophysical Union Fall Meeting. San Francisco, CA.

Theroux, S., Burke, A., Stoll, H., Shimuzu, N., Ziveri, P. 2005. Constraining Nutrient Effects in Monsoon-Driven Productivity Shifts During the Mediterranean Sapropel Events. Paper presented at the Geological Society of America Northeastern Section Annual Meeting. Saratoga Springs, NY.

Journal Articles

Longo, W., Theroux, S., Giblin, A.E., Zheng, Y., Dillon, J.T., Huang, Y. 2016. Temperature calibration and phylogenetically distinct distributions for freshwater alkenones: Evidence from northern Alaskan lakes. Geochimica et Cosmochimica Acta 180: 177-196.

D’Andrea, W., Theroux, S., Bradley, R., Huang, X. 2016. Does phylogeny control Uk37-temperature sensitivity? Implications for lacustrine alkenone paleothermometry. Geochimica et Cosmochimica Acta 175:168-180.

Theroux, S., Toney, J.L., Amaral-Zettler, L., Huang, Y. 2013. Production and temperature sensitivity of long chain alkenones cultured haptophyte Pseudoisochrysis paradoxa. Organic Geochemistry. http://dx.doi.org/10.1016/j.orggeochem.2013.07.006.

Theroux, S. 2012. Diversity and ecology of lacustrine haptophyte algae: implications for paleothermometry. Ph.D. dissertations, Brown University. Providence, RI.

Theroux, S., Huang, Y., Amaral-Zettler. 2012. Comparative molecular microbial ecology of spring haptophyte blooms in an arctic oligosaline lake in Greenland. Frontiers in Microbiology. doi: 10.3389/fmicb.2012.00415.

Toney, J., Theroux, S., Andersen, R., Coleman, A., Amaral-Zettler, L., Huang, Y. 2012. Culturing of the first 37:4 predominant lacustrine haptophyte: Geochemical, biochemical, and genetic implications. Geochimica et Cosmochimica Acta 78:51-64.