Michael Josselyn, PhD, PWS

Senior Wetland Consultant


Mike Josselyn, Founder and past Chief Executive Officer of WRA, Inc. is a Senior Wetland Consultant to the firm and advises clients on wetland delineation, project permitting, and habitat restoration.

Mike has consulted internationally on wetland ecology and restoration.  He has authored or edited several books and more than 50 articles on wetland ecology and mitigation published in national and international scientific journals.  He was a Professor of Biology at San Francisco State University for 22 years and was the Director of the University’s Romberg Tiburon Center for Environmental Studies. He was trained as a US aquanaut in the NOAA “Man-in-the Sea” program and participated in five underwater missions.

He has successfully completed major wetland mitigation and restoration projects for transportation agencies, port authorities, utilities, private developers, and non-profit organizations.  He has been the lead biologist for major conservation plans at Tejon Ranch in Kern County, for the Sunrise Powerlink in San Diego, and for several large scale wetland restoration projects throughout the nation. He has received awards for his work at the 1000-acre Bolsa Chica tidal restoration project, the Gateway Center tidal wetland on San Francisco Bay, and for the design of freshwater wetlands at the Santa Lucia Preserve in Monterey.

As a recognized expert in his field, he has served on national advisory committees to the U.S. Army Corps of Engineers, U.S. Environmental Protection Agency, U.S. Fish and Wildlife Service, National Oceanic and Atmospheric Administration, and the National Wetlands Technical Council in the development of federal wetland policy and research.  He has served as a peer reviewer for State TMDL programs, served on the Wetland Recovery Program’s Science Advisory Panel, and is an expert on the Santa Susanna Field Laboratory Surface Water Panel.  He has participated in scientific advisory missions to the Philippines, Japan, and China. Mike has also provided expert witness services to the Department of Justice, the State of California, and many private parties.

Mike is a Professor Emeritus at San Francisco State University.  Mike has taught courses in wetland restoration and mitigation for the U.S. Army Corps of Engineers, the Wetland Training Institute, and CLE International.  He also teaches the 40-hour Wetland Delineator Certification course.

He was elected in 1984 as a Fellow of the California Academy.


Josselyn, M.N. (ed) 1982. Wetland restoration and enhancement in California. California Sea Grant College Program. Report #T-CSGCP-007. 116pp.

Josselyn, M.N.; Calliet, G.M.; Niesen, T.M.; Cowen, R.; Hurley, A.; Connor, J.; and Hawes, S. l983. Composition, export, and faunal utilization of drift vegetation in Salt River submarine canyon. Estuarine, Coastal and Shelf Science 17:447-465.

Josselyn, M.N. 1983. Estuarine tidal marshes of San Francisco Bay: a community profile. US Fish and Wildlife Service, Division of Biological Services, Washington, DC FWS/OBS-83/23. l02pp.

Josselyn, M.N. and West, J. 1985. Distribution and seasonal abundance of marine algae in San Francisco Bay. Hydrobiologia 129:139-152.

Spicher, D. and M.N. Josselyn. 1985. Spartina (Graminae) in northern California: distribution and taxonomic notes. Madrono 32:158-167.

Josselyn, M.N., M. Fonseca, T. Niesen, and R. Larson. 1986. The ecology of Halophila decipiens: Distribution and production. Aquatic Bot. 25:47-61.

Dornhelm, R. and M. Josselyn. 1987. Sea level rise: predictions and implications for San Francisco Bay. Prepared for: San Francisco Bay Conservation and Development Commission. San Francisco, CA 98pp.

Josselyn, M.N., J. Duffield, and M. Martindale. 1989. Impact of public access on wetlands. Technical Report #9. Romberg Tiburon Centers, Tiburon, CA 94920, 50pp.

Josselyn, M., S. P. Faulkner, and W.H. Patrick, Jr. 1990. Relationships between seasonally wet soils and the occurrence of wetland plants in California. Wetlands 10:7-26.

Callaway, J. and M. Josselyn. 1992. The biology of smooth cordgrass, Spartina alterniflora in San Francisco Bay. Estuaries 15(2):218-26.

Boesch, D.F., M.N. Josselyn, A.J. Mehta, J.T. Morris, W.K. Nuttle, C.A. Simenstad, D.J.P. Swift. 1994. Scientific assessment of coastal wetland loss, restoration, and management in Louisiana. Journal of Coastal Research. 20:1-103.

Acker, C.M., M.N. Josselyn, and D. Pearson. 2004. Soil conditions and potential soil amendments for use in high intertidal areas in southern California tidal marshes. Shore and Beach Vol 72: 10-14.


PhD, Marine Botany, University of New Hampshire

MS, Marine Science, University of Miami

BS, Biology, Cornell University


Certified Professional Wetland Scientist