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Profile Page

Susanne Menden-Deuer
Assoc. Professor of Oceanography
230 Coastal Institute
401 874-6608
Degree Program: PhD

Educational Background

Diplom Biologie
University of Washington
University of Washington
University of Bonn, Germany

Areas of Specialization


Plankton behavior and ecology • Predation • Harmful & toxic algae • Organism movement and dispersal


Biological Oceanography Lecture & Lab • Data Analysis & Communication


Science Mentor: Metcalf Institute, GEMS-NET Poster Judge at scientific conferences: ASLO, ERF, NEAS Science Judge at National Ocean Science Bowl since 2000 Board Member, Association for the Sciences of Limnology and Oceanography National Harmful Algal Bloom Committee Editorial Boards: Journal of Plankton Research, Continental Shelf Research


Caitlyn Lawrence
Henry Wladkowski
Elizabeth Harvey
Hyewon Kim
Françoise Morison
Sam DeCuollo
Mary Kane
Michael Fong
Jason Graff
Rudi Schuech
Michael Orchard
Shu Chen
2009 - 2011
2009 - 2012
2008 - 2012
2010 - 2012
2011 -
2012 -
2012 -
2013 -
2010 - 2011
2011 - 2012
2012 - 2013


selected - see gso.uri.edu/smdlab for most recent

* student co-authors

*Kim H & S Menden-Deuer. 2013. Reliability of rapid, semi-automated assessment of plankton abundance, biomass, and growth rate estimates: Coulter Counter versus light microscope measurements. Limnology & Oceanography Methods 11: 382-393

*Harvey, EL, Jeong HJ & S. Menden-Deuer. 2013. Avoidance and attraction: Chemical cues influence predator-prey interactions of planktonic protists. Limnology & Oceanography. 58:1176-1184

*Kim H, A Spivak & S Menden-Deuer. 2013. Lowered pH alters the swimming behaviors of the raphidophyte Heterosigma akashiwo: implications for bloom formation in an acidified ocean. Harmful Algae 26:1-11

Menden-Deuer S. 2012. Structure-dependent phytoplankton photosynthesis and production: implications for the formation, maintenance and decline of plankton patches. Marine Ecology Progress Series. 468: 15–30

*Harvey, EL & S. Menden-Deuer. 2012. Predator-induced fleeing behaviors in phytoplankton: a new mechanism for harmful algal bloom formation? PLoS ONE 7(9): e46438.doi:10.1371/journal.pone.0046438

*Lawrence, CM & S. Menden-Deuer. 2012. Drivers of protistan grazing pressure: seasonal signals of plankton community composition and environmental conditions. Marine Ecology Progress Series. 459: 39–52,

*Harvey, EL & S. Menden-Deuer. 2011. Avoidance, movement, and mortality: the role of predator-prey interactions in harmful algal bloom dynamics. Limnology and Oceanography 56:371-378

Menden-Deuer S & Fredrickson KA. 2010. Structure-dependent, protistan grazing and its implication for the formation, maintenance and decline of plankton patches. Marine Ecology Progress Series 420: 57-71

Menden-Deuer S. 2010. High-correlation of individual motility enhances population dispersal rates in a heterotrophic protist. PLoS - Computational Biology 6(10): e1000943 doi: 10.1371

Menden-Deuer S & D Grünbaum. 2006. Individual foraging behaviors and population distributions of planktonic predators aggregating to phytoplankton layers. Limnology & Oceanography 51:109-116

Menden-Deuer S & EJ Lessard. 2000. Carbon to volume relationships for dinoflagellates, diatoms, and other protist plankton. Limnology & Oceanography 45: 569-579



Menden‐Deuer S. 2013. Plankton on the move: linking microscopic cell-cell interactions with plankton population dynamics. University of Toronto Mississauga, Canada (invited)

Menden‐Deuer S., Harvey* EL, & Schuech*, R. 2013. Plankton on the move: linking microscopic cell-cell interactions with plankton population dynamics. International Congress of Protistology XIV, Vancouver, Canada

*Hickcox R, EL Harvey & S. Menden-Deuer. 2013. Environmental conditions affecting the halo-tolerance of Heterosigma akashiwo. Aquatic Sciences Meeting, New Orleans

Menden-Deuer S. 2012. Predator prey interactions in the plankton. Danish Technical University, Copenhagen, Denmark

Menden‐Deuer S, *Harvey EL, *Schuech R & JR *Graff. 2012. Organismal movement behaviors, cell-cell interactions and the functioning of marine microbial food webs. ASLO Aquatic Sciences Mtg., Lake Biwa, Shiga, Japan

Menden‐Deuer S., C *Lawrence, & K *Riisgaard. 2012. Heterotrophic protist grazing rate and temperature response during an arctic phytoplankton spring bloom. ASLO Ocean Sciences Mtg., Salt Lake City, UT

Harvey*, E. L. and S. Menden‐Deuer. 2012. Predator‐prey interactions and salinity tolerance can
impact harmful algal bloom formation in Heterosigma akashiwo. ASLO Ocean Sciences Mtg., Salt Lake City, UT

Sutherland, K., Dabiri, J., Costello, J., Colin, S. and S. Menden‐Deuer. 2012. Fluid interactions during predation by the invasive ctenophore, Mnemiopsis leidyi. ASLO Ocean Sciences Mtg., Salt Lake City, UT

Menden-Deuer S. 2011. Predator prey interactions in the plankton. Horn Point Marine Lab, University of Maryland (invited).

Kim*, H and S. Menden-Deuer. 2011. Feasibility of Rapid, Automated Assessment of Phytoplankton Abundance, Biomass, and Growth Rate: Coulter Counter vs. Light Microscope. 6th USA HAB Meeting, Austin, TX

Harvey*, E.L. and S. Menden-Deuer. 2011. Bloom formation in Heterosigma akashiwo – role of predation and physiology. 6th USA HAB Meeting, Austin, TX

Menden-Deuer S, C Roman & C Tennant* 2011. Development and deployment of a shallow water Lagrangian float  to quantify plankton dynamics in-situ. Ocean Carbon & Biogeochemistry. Woods Hole Oceanographic Institution, MA

Menden-Deuer S & Harvey* EL. 2011. Individual actions and global ramifications: why species and scales matter in plankton dynamics. Smayda Festschrift, Graduate School of Oceanography, RI

Menden-Deuer S & W *Day. 2011. Linking predator detection radii with patch exploitation in the coastal ocean. 5th International Zooplankton Production Symposium. Pucón, Chile

Muhlbach* E, W Day*, S Menden-Deuer. 2011. Dinoflagellate prey selectivity: Oxyrrhis marina behavioral mechanisms allow for preferentially feeding of prey species. Northeast Undergraduate Research and Development Symposium, UNE Biddeford, ME

please see website - url link above for most recent or complete


Member for
6 years 14 weeks