Microbiology Group

355 279 Stroud Water Research Center

Microbial life such as bacteria, fungi, and algae are integral to a naturally functioning aquatic ecosystem. By applying comprehensive molecular approaches, this laboratory is focused on characterizing the composition and distribution of microbial communities, and determining the functional roles as well as their interactions with environments.


Raven Bier, Ph.D.

Raven Bier, Ph.D.

Research Associate
Jinjun Kan, Ph.D.

Jinjun Kan, Ph.D.

Associate Research Scientist
Laura Zgleszewski

Laura Zgleszewski

Research Technician


Video still from Episode 6 of the WHYY "Stories From the Streams" video series
Stories From the Streams: Straight From the Source
Learn how scientists are using advanced tools to track down the source of potentially harmful contaminants. Episode 6 in the ... Read More
Photo of Marc Peipoch and Jinjun Kan
Getting Slimed: Scientists Investigate Biofilms in Streams Amidst Climate Change
Slippery, shiny, and available in varying shades of green, slime is the latest research interest of two Stroud Water Research ... Read More
Cows fenced out of a stream
Good Fences Make Good Water
Cows wading in a stream might make a pretty picture but the reality is a lot less pleasant. Find out ... Read More
Photo of Raven Bier working in the microbiology lab
Meet Raven Bier: New Postdoctoral Associate
Through her work at the Stroud Center, Bier hopes to better understand how changes in farming practices on land affect ... Read More
Photo of the Stroud Center's 2018 summer interns
Meet Our 2018 Summer Interns!
The internship experience allows undergraduates to see if they have the passion and fortitude necessary to meet the challenges of ... Read More
"We've All Got to Be Good Neighbors"
“We’ve All Got to Be Good Neighbors”
Barclay Hoopes’ family has been farming in Landenberg, Pennsylvania, since 1854. He knows how he treats his land affects thousands ... Read More


Impacts of conventional and organic management practices on soil health and water quality

Mukherjee, A., R. Bier, E. Omondi, J. Kan, and M. Daniels. 2020. Rodale Institute website.

Widespread cryptic viral infections in lotic biofilms

Payne, A.T., A.J. Davidson, J. Kan, M. Peipoch, R. Bier, and K. Williamson. 2019. Biofilm 2, 100016.

Diversity and spatial distribution of chromophytic phytoplankton in the Bay of Bengal revealed by RuBisCO genes (rbcL)

Pujari, L., C. Wu, J. Kan, N. Li, X. Wang, X. Shang, M. Wang, C. Zhou, and J. Sun. 2019. Frontiers in Microbiology 10:Article 1501.

Denitrification and anammox: understanding nitrogen loss from Yangtze Estuary to the East China Sea

Wang, J.,  J. Kan, G. Qian, J. Chen, Z. Xia, X. Zhang, H. Liu, and J. Sun. 2019. Environmental Pollution 252(B):1659-1670.

Heterotrophic bacteria dominate the diazotrophic community in the Eastern Indian Ocean (EIO) during pre-southwest monsoon

Wu, C., J. Kan, H. Liu, L. Pujari, C. Guo, X. Wang, and J. Sun. 2019. Microbial Ecology 78(4): 804–819.