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Department of Biological Sciences

General Directory

Isaac Hagenbuch

Title: Instructional Faculty
Lab Coordinator
Department: Biological Sciences
College of Arts and Sciences
Phone: 803-777-2062
Office: Sumwalt, Room 234
Isaac Hagenbuch


  • BIOL 550  (Bacteriology Laboratory)
  • BIOL 250L (Microbiology Laboratory)


For as long as I can remember, I've been interested in living things and ecosystems. Growing up on the south shore of the Great Lakes, my formative experiences were in freshwater systems but my heart was always inclined toward the sea. Coming to USC allowed me to get into coastal marine systems were I got interested in microbial primary producers. While investigating eukaryotic algal ecology, I found that some prokaryote-targeting antibiotics had negatives on the algae themselves and those are some of the questions that I am interested in today. While it seems far away from marine algae, my main pursuit these days is the instruction of hopeful future medical professionals in microbiology. We desperately need good nurses, pharmacists, physician's assistants, and doctors and I am focused on ensuring that our next crop is the best available.


Hagenbuch, I. M. (2013). Quantifying the Effects of Antibiotics Upon Benthic Diatoms and Marine Benthic Algal Communities. (Doctoral dissertation)

Pinckney, J. L., Hagenbuch, I. M., Long, Richard, A., Lovell, C. R. (2013) Sublethal effects of the antibiotic tylosin on estuarine benthic microalgal communities. Marine Pollution Bulletin 68(1-2): 8-12.

Hagenbuch, I. M., Pinckney, James L. (2012). Toxic effect of the combined antibiotics ciprofloxacin, lincomycin, and tylosin on two species of marine diatoms. Water Research 46(16): 5028-5036. 

Swenson, G., Hagenbuch, I. M., Pinckney, J. L, Long, R. A (2012). Fluorometric estimation of surface-associated microbial abundance. Journal of Microbiological Methods 88(2), 297-303. doi: 10.1016/j.mimet.2011.12.015


Challenge the conventional. Create the exceptional. No Limits.