Research Scientist Emeritus
- Adjunct Professor, Department of Biology, University of Pennsylvania
- Affiliate Faculty, Delaware Environmental Institute, University of Delaware
970 Spencer Road, Avondale, PA 19311
Interests and Expertise
Dissolved organic matter biogeochemistry, aquatic microbial ecology, and nutrient cycling.
- Ph.D., Biology (Limnology), University of Pennsylvania, Philadelphia, Pennsylvania.
- M.S., Ecology, University of California, Davis, California.
- B.A., Environmental Sciences, Franklin and Marshall College, Lancaster, Pennsylvania.
- Research Scientist Emeritus, Stroud Water Research Center, 2018–present.
- Director, Ecosystem Science Cluster, Division of Environmental Science, National Science Foundation, 2015–2018.
- Senior Research Scientist, Stroud Water Research Center, 1999–2017.
- Curator, Division of Environmental Research, Stroud Water Research Center, Academy of Natural Sciences of Philadelphia, 1996–1999.
- Assistant Curator, Division of Environmental Research, Stroud Water Research Center, Academy of Natural Sciences of Philadelphia, 1988–1992.
- Research Associate, Division of Environmental Research, Stroud Water Research Center, Academy of Natural Sciences of Philadelphia, 1980–1988.
- Post Graduate Research Scientist III, University of California, Davis, California, 1974–1975.
Wiegner, T.N., L.A. Kaplan, S.E. Ziegler, R.H. Findlay. 2015. Aquatic Microbial Ecology 75:225–237.
Mosher, J.J., L.A. Kaplan, D.C. Podgorski, A.M. McKenna, and A.G. Marshall. 2015. Biogeochemistry 124(1–3):371–385.
Mosher, J.J., B. Bowman, E.L. Bernberg, O. Shevchenko, J. Kan, J. Korlach, and L.A. Kaplan. 2014. Journal of Microbiological Methods 104:59–60.
Sleighter, R.L., R.M. Cory, L.A. Kaplan, H.A.N. Abdulla, and P.G. Hatcher. 2014. Journal of Geophysical Research: Biogeochemistry 119(8):1520–1537.
Mei, Y., G.M. Hornberger, L.A. Kaplan, J.D. Newbold, and A.K. Aufdenkampe. 2014. Water Resources Research 50(7):5774–5796.
While an intern at the Stroud Center, Kristen Jellison, Ph.D., got her first taste of investigative scientific research, and she was immediately hooked.
Investigators explore how the quality of organic molecules changes with distance downstream and how those changes influence the composition of the communities of streambed microbes using that food resource. The
Stroud Center scientists have authored or co-authored more than two dozen scientific papers this year, exhibiting the range of our science from Yellowstone Lake to Costa Rica and from earthworm
Louis A. Kaplan, Ph.D., accepted a one-year appointment as a visiting scientist at the federal agency that funds innovative scientific research.
In May, Stroud Water Research Center scientists attended the weeklong annual meeting of the Society for Freshwater Science (SFS) in Milwaukee, Wisconsin.
This grant supports the acquisition of a high-sensitivity stable isotope ratio mass spectrometer (IRMS) at Stroud Water Research Center, which will provide enhanced capabilities and greater sensitivity analyses than currently