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Peggy Lehman

Peggy Lehman
Former Staff Environmental Scientist
(209) 234-3496

B. S., M.S. and Ph.D., U. C. Davis, Ca.

Brief Resume

Research Interests:

  • Phytoplankton ecology, harmful algal blooms (HAB), phytoplankton distributions, wetland ecology

Presentations and Poster Papers:


Journal papers:

  • P. W. Lehman, S. Mayr, L. Leiji and A. Tang. 2015. Tidal day organic and inorganic material flux of ponds in the Liberty Island freshwater tidal wetland. SpringerPlus 4:273.

  • P. W. Lehman, C. Kendall, M. A. Guerin, M. B. Young, S. R. Silva, G. L. Boyer and S. J. Teh. 2015. Characterization of the Microcystis bloom and its nitrogen supply in San Francisco Estuary using stable isotopes. Estuaries and Coasts. Estuaries and Coasts (2015) 38:165-178
  • B. Herbold, D. M. Baltz, L. Brown, R. Grossinger, W. Kimmerer, P. Lehman, P. B. Moyle, M. Nobriga and C. A. Simenstad. 2014. The Role of Tidal Marsh Restoration in Fish Management in the San Francisco Estuary. San Francisco Estuary and Watershed Science 12 (1).
  • Lehman, P. W., K. Marr, G. L. Boyer, S. Acuna and S. J. Teh. 2013. Long-term trends and causal factors associated with Microcystis abundance and toxicity in San Francisco Estuary and implications for climate change impacts. Hydrobiologia 718:141-158.
  • Acuna, S., D.F. Deng, P. Lehman, and S. Teh. 2012. Sublethal dietary effects of Microcystis on Sacramento splittail, Pogonichthys macrolepidotus (PDF, 712 KB). Aquatic Toxicology 110-111 (2012) 1-8.
  • Baxa, D. V., T. Kurobe, K. Ger, P. W. Lehman, and S. J. Teh. 2010. Estimating the abundance of toxic Microcystis spp. in the San Francisco Estuary using quantitative real-time PCR (PDF, 285 KB). Harmful Algae 9:342-349.
  • Deng, D-F., K. Zheng, F-C. Teh, P. W. Lehman and S. J. Teh. 2010. Toxic Threshold of Dietary Microcystin (-LR) for Quart Medaka (PDF, 250 KB). Toxicon 55:787-794.
  • Lehman, P. W., S. Mayr, L. Mecum and C. Enright. 2010. The freshwater tidal wetland Liberty Island, CA was both a source and sink of inorganic and organic material to the San Francisco Estuary (PDF, 602 KB). Aquatic Ecology 44:359-372.
  • Lehman, P. W., S. J. Teh, G. L. Boyer, M. Nobriga, E. Bass and C. Hogle. 2010. Initial impacts of Microcystis on the aquatic food web in the San Francisco Estuary. Hydrobiologia 637:229-248
  • Moisander, P. H., P. W. Lehman, M. Ochiai and S. Corum. 2009. Diversity of the toxic cyanobacterium Microcystis aeruginosa in the Klamath River and San Francisco Bay delta, California. Aquatic Microbial Ecology 57:19-31.
  • Lehman, P. W., G. Boyer, M. Satchwell and S. Waller. 2008. The influence of environmental conditions on the seasonal variation of Microcystis cell density and microcystins concentration in San Francisco Estuary. Hydrobiologia 600:187-204.
  • Lehman, P. W., T. Sommer and L. Rivard. 2008. Phytoplankton primary productivity, respiration, chlorophyll a and species composition in the Yolo Bypass floodplain, California. Aquatic Ecology 42:363-378.
  • Lehman, P. W. 2007. The influence of phytoplankton community composition on primary productivity along the riverine to freshwater tidal continuum in the San Joaquin River, California. Estuaries and Coasts 30: 82-93.
  • Lehman, P. W., G. Boyer, C. Hall, S. Waller and K. Gehrts. 2005. Distribution and toxicity of a new colonial Microcystis aeruginosa bloom in the San Francisco Bay Estuary, California. Hydrobiologia 541:87-99.
  • Lehman, P. W., J. Sevier, J. Giuliannotti and M. Johnson. 2004. Sources of oxygen demand in the lower San Joaquin River, California. Estuaries 27:405-418.
  • Lehman, P. W. 2004. The influence of climate on mechanisms that affect lower food web production in estuaries. Estuaries 27:312-325.
  • Lehman, P. W. 2000. The influence of climate on phytoplankton community carbon in San Francisco Bay Estuary. Limnology and Oceanography 45:580-590.
  • Lehman, P. W. 2000. Phytoplankton, carbon, cell diameter and species composition in the low salinity zone of northern San Francisco Bay Estuary. Estuaries 23:216-230.
  • Lehman, P. W. 1996. Changes in chlorophyll a concentration and phytoplankton community composition with water year type in the upper San Francisco Bay estuary. In J. T. Hollibaugh (ed.), San Francisco Bay: The Ecosystem. Pac. Div., Amer. Assoc. Adv. Sci.
  • Lehman, P. W. 1992. Environmental factors associated with long-term changes in chlorophyll a concentrations in the Sacramento-San Joaquin Delta and Suisun Bay, California. Estuaries 15:335-348.
  • Lehman, P. W. and R. W. Smith. 1991. Environmental factors associated with phytoplankton succession for the Sacramento-San Joaquin Delta and Suisun Bay estuary. Estuarine, Coastal and Shelf Science. 32(2):105-128.
  • Lehman, P. W. 1981. Comparison of chlorophyll a and carotenoid pigments as predictors of phytoplankton biomass. Marine Biology 65:237-244.
  • Lehman, P. W., W. Kuhn Silk and A. W. Knight. 1981. Protein and nitrate content of Lemna sp. as a function of developmental stage and incubation temperature. Plant Physiology 68:127-132.

Government reports: