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Coastal Watershed Institute
Florida Gulf Coast University
10501 FGCU Blvd S.
Fort Myers, FL 33965-6565

Phone: 239-590-7526

Mike Parsons


Loren Coen

Graduate Faculty Member, FGCU
Phone: (239) 470-2236
Office: Off Campus



B.A.     1976    Department of Biology, City University of New York.

M.S.    1979    Department of Biological Sciences, Florida State University

Ph.D.   1987    Department of Zoology, University of Maryland, College Park,




Loren Coen holds a Faculty Appointment in FGCU’s Marine and Ecological Sciences Department and is a member of the Coastal Watershed Institute.  He also is a research faculty member at FAU/HBOI and at the College of Charleston.  Over the past 30 years he has worked extensively with invertebrates (especially decapod crustaceans and bivalve molluscs) and aquatic plants (seagrasses, mangroves, saltmarshes and macroalgae).  His research has been extensive in the Gulf of Mexico as well as in the southeastern U.S.  It has taken him to Central and South America, including Brazil, Belize, Mexico, Honduras and the U.S. Virgin Islands.  Work on non-native oysters has included China and elsewhere.  Previously he worked at the Dauphin Island Sea Lab (DISL) and University of South Alabama where he worked with bivalves, sublethal predation, seagrasses along the northeastern Gulf of Mexico.  He has guided students in graduate programs at the University of South Alabama, the College of Charleston, FAU and the University of South Carolina.  Dr. Coen has served on numerous graduate committees, as both major professor and graduate committee member and has taught graduate and undergraduate courses in marine ecology, marine biology, non-native species, marine botany and biological oceanography.  Prior to arriving back in Florida in 2007, he was a Senior Marine Scientist, managing the Shellfish Research Section in SCDNR’s Marine Resources Research Institute in Charleston, SC, located at Ft. Johnson’s Marine Science Center (NOAA, NIST, MUSC, DNR, College of Charleston) housing over 300 scientists and support staff.  More recently his research has included work on the: (1) ecology and restoration of intertidal and subtidal oyster reef habitats and their ecological value as estuarine habitats; (2) interactions between oyster reefs and fringing salt marshes and ecosystem services; (3) the effects of bivalve mariculture on tidal creek benthic communities; (4) biology of non-native species (crabs, oysters); (5) remote sensing and related mapping of intertidal habitats; and (6) disease dynamics of shellfish populations.  In SC Coen developed and led a state-wide Community-Based oyster restoration program called ‘SCORE’ (SC Community-Based Oyster Restoration and Enhancement Program) which won several national awards including a Coastal America Partnership Award, the Theodore M. Sperry Award from the Society for Ecological Restoration (SER) and a NOAA Restoration Center Excellence in Restoration award.  He organized two Benthic Ecology Meetings, has served on the Program Committee for nearly all of the biennial International Shellfish Restoration Conferences (ICSR held in Charleston, SC), and served on the Executive Board of the National Shellfisheries Association.  Of late he has been working with The Nature Conservancy and NOAA (among others) on a U.S. and worldwide marine initiative entitled 'Shellfish@Risk', their ecosystem services and a monitoring document that synthesizes the goals, metrics and success criteria for oyster reef restoration.  He also manages the Oyster Restoration Workgroup effort (see



Coen, L.D., D.M. Knott, E.L. Wenner, N.H. Hadley, A.H. Ringwood, 1999a.  Intertidal Oyster Reef Studies in South Carolina: Design, Sampling and Experimental Focus for Evaluating Habitat Value and Function.  Pages 131-156, In: M.W. Luckenbach, R. Mann, J.A. Wesson (eds.), Oyster Reef Habitat Restoration: A Synopsis and Synthesis of Approaches.  Virginia Institute of Marine Science Press, Gloucester Point, VA.

Coen, L.D., M.W. Luckenbach, and D.L. Breitburg, 1999b. The role of oyster reefs an essential fish habitat: a review of current knowledge and some new perspectives.  Pages 438-454, in L. R. Benaka, Editor.  Fish habitat: essential fish habitat and rehabilitation.  American Fisheries Society, Symposium 22, Bethesda, Maryland.

Burrows, F., J.M. Harding, R. Mann, R. Dame and L. Coen, 2005.  Chapter 4, Restoration monitoring of oyster reefs, pages 4.2-4.73.  In: G.W., Thayer, T.A. McTigue, R.J. Salz, D.H. Merkey, F.M. Burrows, and P.F. Gayaldo, (Eds.), Science-Based Restoration Monitoring of Coastal Habitats, Volume Two: Tools for Monitoring Coastal Habitats. NOAA Coastal Ocean Program Decision Analysis Series No. 23. NOAA National Centers for Coastal Ocean Science, Silver Spring, M.D.

Coen, L.D., R.D. Brumbaugh, D. Bushek, R. Grizzle, M.W. Luckenbach, M.H. Posey, S.P. Powers, and G. Tolley, 2007.  AS WE SEE IT.  A broader view of ecosystem services related to oyster restoration.  Mar Ecol. Prog. Ser. 341:303–307.

Grizzle, R.E., J.K. Greene, and L.D. Coen, 2008.  Seston removal by natural and constructed intertidal eastern oyster (Crassostrea virginica) reefs: a comparison with previous laboratory studies, and the value of in situ methods.  Estuaries and Coasts 31:1208-1220.

Beck, M.W., R.D. Brumbaugh, L. Airoldi, A. Carranza, L.D. Coen, C. Crawford, O. Defeo, G.J. Edgar, B. Hancock., M.C. Kay, H.S. Lenihan, M.W. Luckenbach, C.L. Toropova, G. Zhang, and X. Guo, 2011.  Oyster reefs at risk and recommendations for conservation, restoration and management.  BioScience 61:107–116.

Coen, L.D., B.R Dumbauld, and M.L. Judge, 2011.  Expanding shellfish aquaculture: a review of the ecological services provided by and impacts of native and cultured bivalves in shellfish-dominated ecosystems. Ch. 9, 239-295, in: Shellfish aquaculture and the environment, S.E. Shumway, Ed., Wiley-Blackwell.

Ermgassen, P.S.E. zu, M.D. Spalding, P. Banks, B. Blake, L.D. Coen, B. Dumbauld, S. Geiger, J.H. Grabowski, R. Grizzle, M. Luckenbach, K. McGraw, B. Rodney, J. Ruesink, S. Powers, and R. Brumbaugh, 2012. Historical ecology with real numbers: Past and present extent and biomass of an imperilled estuarine ecosystem. Proc. Royal Acad. Lond., B. 279 (1742):3393-3400.

Grizzle, R.E., and L.D. Coen, 2013.  Slow-down and reach out (and we’ll be there): a response to “shellfish as living infrastructure” by Kate Orff.  Ecological Restoration 31:325-329.

Baggett, L.P., S.P. Powers, R. Brumbaugh, L.D. Coen, B. DeAngelis, J. Green, B. Hancock, and S. Morlock, 2013.  A handbook for monitoring guidelines and criteria for judging the performance of oyster restoration projects.  TNC Report, Arlington, VA, 96pp.

Coen, L.D. and R. Grizzle, 2014.  Bivalve Species: Oysters, Clams and Related Ecology, Mapping and Related Restoration.  In:M. Kennish, Ed., Encyclopedia of Estuaries, Springer.

Coen, L.D., 2014. Biorock™, electricity, and other restoration approaches.  A review of: Innovative Methods of Marine Ecosystem Restoration, Edited by Thomas Goreau and Robert Trench. Ecology 95(3):790-791.

Garcia, R.N., K.W. Chung, P.B. Key, L. Burnett, L.D. Coen, and M.E. DeLorenzo, 2014.  Toxicity of mosquito control insecticides in larval and juvenile Eastern oysters and hard clams, and interactive effects of hypoxia and elevated CO2.  Archives of Environmental Contamination and Toxicology 66:450–462.