Dr. Jed Fuhrman

McCulloch-Crosby Chair of Marine Biology
P.I. Dimensions in Biodiversity Project
Co-P.I. - USC Microbial Observatory

AHF 211

Dornsife Faculty Profile
Google Scholar Publication List

Nathan Ahlgren

Postdoctoral researcher

AHF 230

Research Interests:
I am interested in characterizing interactions between marine bacteria and protists. My researches includes investigating how protist predation (grazing) alters community composition as well as looking for novel mutualistic interactions between bacteria and protists. I am using both whole community approaches enabled by 16S rRNA tag sequencing and single-cell approaches.

J. Cesar Ignacio Espinoza

Postdoctoral researcher

AHF 230

Research interests:
I am interested in understanding the dynamics of virus-host interactions in marine systems. My research questions include: How do diversity and community structure change during a phytoplankton and bacterial bloom? To what extent and by what mechanisms do viruses drive the structure of phytoplankton and bacterial communities? I use bioinformatic and molecular approaches while taking advantage of the highly contextualized SPOT long term study site.

David Needham

Postdoctoral researcher

AHF 230

Research interests:
I'm interested how viruses structure marine microbial communities. To this end, for my current research we have undertaken multiple, extended daily time-series at both the SPOT time-series location and near Catalina Island at various times of the year and contrasting environmental conditions. I tend to characterize the microbial communitis using DNA sequencing approaches using marker genes that are almost universal for most cellular life to more specific assays which target, for example the T4-like-myoviruses and the SAR11 group. This research allows us to understand how various groups of microbial communities might be influenced by the environmental conditions and other microbial interactions, including viruses, allowing us to consider bacteria-virus dynamics within the context of widely-discussed hypotheses such as the "Kill-the-Winner" hypothesis. 
I’m also interested in investigating virus community spatial biodiversity and temporal diversity using molecular markers and techniques such as TRFLP, qPCR, and DNA sequencing.

  • How do viruses shape or interact with the microbial community and, thus, influence ecosystem function?
  • Determine the extent to which the ‘viral-shunt’ may influence biogeochemical cycles in the marine environment.

Ella Sieradzki

Graduate Student, CV

AHF 230

Research Interests:
My focus is on human impacts on naturally occurring microbial communities in seawater. I use metagenomics, metatranscriptomics, stable isotope probing and community fingerprinting to pinpoint functional effects of inputs like heavy metals and hydrocarbons originating from urban and marine traffic pollution.

Yi-Chun "Liv" Yeh

Graduate student

AHF 230

Erin Biers Fichot

Lab Manager


AHF 230

Erin's Google Scholar Publication List

Past Members

Alma Parada, Ph.D. 2015

Lyria Berdjeb, Post-doc 2014-2015

Laura Gomez-Consarnau, Post-doc

Jacob Cram, Ph.D. 2014

Cathy Roney, Lab Manager 2012-2014

Cheryl Chow, Ph.D. 2012

Anand Patel, Ph.D. 2011

Joshua Steele, Ph.D. 2010

Rohan Sachdeva, Lab Manager 2007-2010

J Michael Beman, post-doc

Michael Schwalbach, Ph.D. 2006

John Griffith, Ph.D. 2006

Xiaolin Liang, M.S. 2005

Ian Hewson, Ph.D. 2005

Mark Brown, post-doc

Cleber Ouverney, Ph.D. 2000

Rachel Noble, Ph.D. 1998, post-doc

Stefanie Gehret M.S. 1998

Pierre Rossi, post-doc

Markus Karner, post-doc

Robin Wilcox, M.S. 1993

Lita Proctor, Ph.D. 1991

Kirk McCallum, post-doc

Yaeko Masuchi, post-doc

Curtis Suttle, post-doc

SangHoon Lee, M.S. 1986, Ph.D. 1990

James Mitchell, Ph.D. 1987

George McManus, Ph.D. 1986

John Hudak, M.S. 1985

Marianne Legier, M.S. 1985