Marie DeLorenzo

NOAA/National Ocean Service, National Centers for Coastal Ocean Science

Address: Hollings Marine Laboratory, NOAA, 331 Fort Johnson Road, Charleston, SC 29412
Phone: 843-212-6643


Ph.D., 1997, Clemson University
M.S., 1994, Penn State University

Research Interests

  • Environmental toxicology, physiology, and microbiology

Current and planned research projects

  • Effects and mechanisms of PFAS toxicity on estuarine organisms
  • Toxicity effects of and development of antibiotic resistant bacteria resulting from pharmaceuticals and personal care products in the environment
  • Effects of climate variations on contaminant toxicity
  • Effects of oil and oil spill dispersants on estuarine organisms


  • DeLorenzo, M.E., Key, P.B., Chung, K.W., Aaby, K., Hausman, D., Jean, C., Pennington, P.L., Pisarski, E.C., Wirth, E.F. 2021. Multi-stressor effects of ultraviolet light, temperature, and salinity on Louisiana Sweet Crude oil toxicity in larval estuarine organisms. Archives of Environmental Contamination and Toxicology. DOI 10.1007/s00244-021-00809-3
  • Key, P.B., Chung, K.W., West, B., Pennington, P.L., DeLorenzo, M.E. 2020. Developmental and reproductive effects in grass shrimp (Palaemon pugio) following acute larval exposure to a thin oil sheen and ultraviolet light. Aquatic Toxicology
  • Aquilina-Beck, A.A., Reiner, J.L., Chung, K.W., DeLise, M.J., Key, P.B., DeLorenzo, M.E. 2020. Uptake and Biological Effects of Perfluorooctane Sulfonate Exposure in the Adult Eastern Oyster Crassostrea virginica. Archives of Environmental Contamination and Toxicology
  • van den Hurk, P., Edhlund, I., Davis, R., Hahn, J.J. McComb, M.J., Rogers, E.L., Pisarski, E., Chung, K., DeLorenzo, M. 2020. Lionfish (Pterois volitans) as biomonitoring species for oil pollution effects in coral reef ecosystems. Mar Environ Res
  • Gugliotti, E.F., DeLorenzo, M.E., Etnoyer, P.J. 2019. Depth-dependent temperature variability in the Southern California bight with implications for the cold-water gorgonian octocoral Adelogorgia phyllosclera. J. Exp. Mar. Biol. Ecol.514-515:118-126.
  • Baxter, S.E., DeLorenzo, M.E., Key, P.B., Chung, K.W., Beckingham, B., Fulton, M.H. 2018. Toxicity Comparison of the Shoreline Cleaners Accell Clean® and PES-51® in Two Life Stages of the Grass Shrimp, Palaemonetes pugio. Environ Sci Poll Res 25(11):10926-10936. DOI: 10.1007/s11356-018-1370-2
  • DeLorenzo, M.E., Evans, B., Chung, K.W., Key, P.B., Fulton, M.H. 2017. Effects of Salinity on Oil Dispersant Toxicity in the Mud Snail, Ilyannasa obsoleta. Environ Sci Poll Res 24(26):21476-21483. DOI 10.1007/s11356-017-9784-9
  • DeLorenzo, M.E., Key, P.B., Chung, K.W., Pisarski, E., Shaddrix, B., Moore, J.G., Wirth, E.F., Pennington, P.L., Wade, J., Franco, M., Fulton, M.H. 2017. Comparative Toxicity of Two Chemical Dispersants and Dispersed Oil in Estuarine Organisms. Arch Environ Contam Toxicol 74(3): 414-430. DOI 10.1007/s00244-017-0430-9
  • Frometa, J., DeLorenzo, M.E., Pisarski, E.C., Etnoyer, P.J. 2017. Toxicity of oil and dispersant on the deep water gorgonian octocoral Swiftia exserta, with implications for the effects of the Deepwater Horizon oil spill. Mar Poll Bull. 122:91-99.
  • DeLorenzo, M.E., Brooker, J., Chung, K.W., Kelly, M., Martinez, J., Moore, J.G., Thomas, M. 2016. Exposure of the grass shrimp, Palaemonetes pugio, to antimicrobial compounds affects associated Vibrio bacterial density and development of antibiotic resistance. Environ Toxicol. 31(4):469-77. doi:10.1002/tox.22060.