She moved to the University of Rhode Island in 2008, and was promoted to professor in 2017.
[1] In 2022, the Association for the Sciences of Limnology and Oceanography announced Menden-Deuer as president-elect for the society.
Her early work presented carbon-to-volume relationships for small marine organisms,[3] a paper with Evelyn Lessard that was recognized in 2016 as one of the most highly cited papers in the journal Limnology and Oceanography.
[4] Subsequent work looked at foraging behavior by plankton organisms,[5][6] and expanding methods used to quantify grazing activity in marine systems.
[7][8] Menden-Deuer and her student Elizabeth Harvey, determined that the phytoplankton Heterosigma akashiwo moves away from predators,[9] a behavior not previously observed in phytoplankton.