Brian Sidlauskas
Associate Professor and Curator of Fishes

Ichthyology, Systematics, Evolution, Biodiversity and Conservation of Fishes

OSU Campus
Fisheries and Wildlife
Nash Hall
Room 042 Oregon State University
Corvallis, OR 97331
United States
(541) 737-6789


Research in my lab seeks to understand the evolution, ecology and systematics of fishes on scales ranging from local to global. We use diverse morphological and molecular methods including phylogenetics, geometric morphometrics, microsatellite analysis and comparative anatomy.  Whether reconstructing evolutionary relationships, investigating cryptic species or testing patterns of trait evolution, our work helps reveal and protect the world’s tremendous biodiversity of fishes.


FW 315 Ichthyology
FW 316 Systematics of Fishes
FW 472/572 Advanced Ichthyology


Ph.D. 2006, Evolutionary Biology, University of Chicago, Chicago, Illinois
M.S. 2003, Evolutionary Biology, University of Chicago, Chicago, Illinois
A.B. 1998, Biological Sciences, Cornell University, Ithaca, New York

I accept graduate students for the Fisheries and Wildlife Department

Awards and Honors

  • Undergraduate Mentor of the Year.  2014.  Oregon State University.
  • Student Learning and Success Teamwork Award. 2013. Oregon State University
  • Vice Provost’s Award for Excellence in Outreach and Engagement: Online Teaching Innovation. 2012. Oregon State University.
  • Savery Outstanding Young Faculty Award. 2012. OSU College of Agricultural Sciences.  
  • Outstanding New Professor Award. 2012. OSU Agricultural Executive Council

Fun Fact

Enjoys playing early music on harp and historic woodwinds, living history, hiking, canoeing, French cooking, strategy boardgaming, scientific illustration and nature photography.