Patricia "Trish" Holden

Bren School

Office Location

Bren Hall 3508


Soil Microbiology, Civil and Environmental Engineering, and Microbiological Coastal Water Quality


  • Ph.D., Soil Microbiology, UC Berkeley
  • M.E., Civil & Environmental Engineering, UC Berkeley
  • M.S., Civil Engineering, Purdue University
  • B.S., Civil Engineering, University of Tennessee


Dr. Patricia A. Holden is a professor of environmental microbiology in the Bren School of Environmental Science & Management, and also director of the UCSB Natural Reserve System. She has a background in civil/environmental engineering, and is a researcher with the UC Center for Environmental Implications of Nanotechnology, where her group studies bacteria as agents of environmental restoration and degradation.