Contact & CV

Adjunct Research Professor                                                           Chief Scientific Officer
California State University Monterey Bay                                         Pelagic Data Systems, Inc.
Division of Science and Environmental Policy                                  58 Sala Terrace
100 Campus Center                                                                       San Francisco, CA 94112
Seaside, CA 93955                                                              
Email:                                                           Email:


Ph.D.  Marine Biology, Scripps Institution of Oceanography, UCSD (2011; advised by Prof. Farooq Azam)

M.S.    Marine Biology, Scripps Institution of Oceanography, UCSD (2008)

B.S.     Molecular Biology, Yale University (2003)


Garren, K. Son, R. Stocker. Temperature-induced behavioral switches in a bacterial marine pathogen. (in review)

M. Groner, R. Breyta, A. Dobson, C. S. Friedman, M. Garren, F. Gulland, J. Maynard, E. Weil, S. Wyllie-Echeverria, C.D. Harvell (2015) Emergency Response for Marine Diseases. Science 347:1210 J.

Maynard, R. van Hooidonk, C. M. Eakin, M. Puotinen, S. F. Heron, M. Garren, J. Lamb, G. Williams, E. Weil, B. Willis, C.D. Harvell (2015) Climate projections of conditions that increase coral disease susceptibility and pathogen virulence. Nature Climate Change DOI: 10.1038/nclimate2625

F.J. Pollock, M. Garren, C.J. Krediet, R. Stocker, K. Winn, C. Huete-Stauffer, B.L. Willis, D.G. Bourne. (2015) Development of a stable GFP-labeled Vibrio coralliilyticus strain for in situ visualization of coral host-pathogen interactions. Coral Reefs DOI 10.1007/s00338-015-1273-3 J.

Tout, N. Siboni, L. F. Messer, M. Garren, R. Stocker, N.S. Webster, P.J. Ralph, J.R. Seymour (2015) Increased seawater temperature increases the abundance and alters the structure of natural Vibrio populations associated with the coral Pocillopora damicornis. Frontiers in Microbiology DOI 10.3389/fmicb.2015.00432

J. Tout, T.C. Jeffries, K. Petrou, G.W. Tyson, N.S. Webster, M. Garren, R. Stocker, P.J. Ralph, J.R. Seymour (2015) Chemotaxis by natural populations of coral reef bacteria International Society for Microbial Ecology Journal DOI 10.1038/ismej.2014.261

Shapiro, V. Fernandez, M. Garren, J. Guasto, F. Debaillon-Vesque, E. Kramarski-Winter, A. Vardi, R. Stocker.(2014) Ciliary currents enhance mass transport in reef-building corals. Proceedings of the National Academy of Sciences DOI 10.1073/pnas.1323094111

Fernandez, O.H. Shapiro, M. Garren, A. Vardi, R. Stocker (2014) “Invisible coral flows” (winner of 2013 Visualization Challenge), Cover of Science 343: 600-610

Garren, K. Son, J.B. Raina, R. Rusconi, O. Shapiro, D. Bourne, J. Seymour, R. Stocker. (2014) Pathogen uses dimethylsulfoniopropionate as a cue to target heat-stressed corals. International Society for Microbial Ecology Journal 8:999–1007

Rusconi, M. Garren, R. Stocker. (2014) Microfluidics expanding the frontiers of microbial ecology. Annual Review of Biophysics 43: 2.1-2.27

J.E. Carilli, C.D. Charles, M. Garren, M. McField, R.D. Norris (2013) Baseline shifts in coral skeletal oxygen isotopic composition: a signature of symbiont shuffling? Coral Reefs 10.1007/s00338-012-1004-y

M. Garren and F. Azam (2012) Corals Shed Bacteria as a Potential Mechanism of Resilience to Organic Matter Enrichment. ISME J. doi:10.1038/ismej.2011.180

M. Garren and F. Azam (2012) New Directions in Coral Reef Microbial Ecology. Environmental Microbiology doi: 10.1111/j.1462-2920.2011.02597.x

M. Garren and F. Azam (2010) A New Method for Counting Bacteria Associated with Coral Mucus. Applied and Environmental Microbiology 76: 6128-6133

D.G. Bourne, M. Garren, T.M. Work, E. Rosenberg, G.W. Smith, C.D. Harvell (2009) Microbial Disease and the Coral Holobiont. Trends in Microbiology 17: 554-562

M. Garren, L. Raymundo, J. Guest, C.D. Harvell and F. Azam (2009) Resilience of coral-associated bacterial communities exposed to fish farm effluent.  PLoS One. doi:10.1371/journal.pone.0007319

M. Garren, J. Myers, C. Arney (2009) Rebalancing Human-Influenced Ecosystems.  The Journal of Undergraduate Mathematics and Its Applications 30: 100-107

M. Garren, S. Smriga and F. Azam (2008) Gradients of coastal fish farm effluents and their effect on coral reef microbes. Environmental Microbiology 10: 2299-2312.

M. Garren, S. Walsh, A. Caccone, N. Knowlton (2006) Patterns of association between Symbiodinium and members of the Montastraea annularis species complex on spatial scales ranging from within colonies to between geographic regions. Coral Reefs 25: 503-512

Selected Presentations

M. Garren, K. Son, J.B. Raina, D. Bourne, J. Seymour, R. Stocker (2014) Kicking into High Gear: Temperature Induced Behavioral Switches in a Bacterial Coral Pathogen. 15th International Symposium on Microbial Ecology, Seoul, Korea. Oral presentation

M. Garren (2013) Do Coral Symbionts Leave a Chemical Trail for Pathogens to Follow? 13th Symposium on Aquatic Microbial Ecology, Stresa, Italy. Oral presentation

M. Garren, K. Son, J.B. Raina, D. Bourne, J. Seymour, R. Stocker (2013) A Bacterial Pathogen Targets the DMSP-rich Mucus of its Coral Host. 2nd Microscale Interactions in Aquatic Environments, Les Houches, France. Oral presentation.

M. Garren (2012) The Sea We’ve Hardly Seen. TEDx Monterey Event. Invited oral presentation. (

M. Garren, L. Raymundo, J. Guest, C.D. Harvell and F. Azam (2010) Dynamic Interactions among Coral-Associated Bacteria in Response to Fish Farm Effluent Exposure over Short Time Scales. American Society of Limnology and Oceanography Ocean Science Meeting, Portland, OR. Oral presentation.

M.Garren (2010) The Fight Against Pollution on Coral Reefs: Getting to Know the Tiny Warriors.  American Association for the Advancement of Science Family Days Event, San Diego, CA. Invited public lecture.

M. Garren (2009) Marine Microbes and Coral Reef Health. Hawaiian Islands Humpback Whale National Marine Sanctuary, Maui, HI. Invited public lecture.

M. Garren (2009) Mariculture in a Changing Environment. Scripps Environmental Advocates, La Jolla, CA. Invited oral presentation.

M. Garren, S. Smriga, F. Azam (2008) Potential for transport of bacteria between fish farms and coral reefs. 11th International Coral Reef Symposium, Fort Lauderdale, FL. Oral presentation

M. Garren (2006) Una perspectiva sobre el manejo integrado de una area protegida marino-costero. University of Costa Rica, San Jose, Costa Rica. Invited departmental seminar.

M. Garren, A. Caccone, N. Knowlton (2004) Patterns of association between Symbiodinium and members of the Montastraea annularis species complex in the Bocas del Toro Archipelago, Panama. 10th International Coral Reef Symposium, Okinawa, Japan. Poster presentation.

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