Ocean Ecogeochemistry

Dr. Kelton McMahon

I grew up in coastal Connecticut and have been trying to figure out “how the ocean works” for as long as I can remember. My parents instilled in me a deep sense of stewardship for the ocean and a tremendous appreciation for the power of science. That union drives my passion for ocean research and conservation, both professionally and personally.

My research is broadly characterized as ecogeochemistry – the application of isotope and trace element geochemistry to fundamental questions in ecology. More specifically, my research develops a mechanistic understanding of how consumer-resource relationships build the food web architecture that supports ecosystem function and resilience. I am particularly interested in how natural and anthropogenic disturbances can alter food web architecture, both from a bottom up and top down perspective. My research is centered on the development and application of compound-specific stable isotope analysis (CSIA) to understand resource utilization, trophic dynamics, and biogeochemical cycling. My approach draws upon expertise in ecology, oceanography, biochemistry, and geochemistry. By quantifying the influence of food web architecture on marine ecosystem function, I hope to provide scientific support address current and emerging ocean challenges related to human-environment interactions.

When I’m not ensconced in research, education, and outreach, chances are I’m rock climbing, playing with my adorable pups, or helping GSO beat WHOI in the annual Niskin Cup hockey game.

Education:

Ph.D. Biological Oceanography, MIT-WHOI Joint Program in Oceanography, Woods Hole, MA, 2011

B.Sc. Biology (Honors), Bates College, Lewiston, ME, 2005