Darrell Jay Grimes, Ph.D.


Darrell Jay Grimes, Ph.D.

Cell: (228) 806-7700
jay.grimes@usm.edu




Marine Microbiology

My research is primarily focused on the Vibrios. 

The genus Vibrio now includes over 100 species and is considered by most marine microbiologists to comprise the dominant culturable bacteria in the ocean. Much of my research has focused on V. parahaemolyticus and V. vulnificus, although we have recently looked at the abundance and distribution of V. cholerae in the Northern Gulf of Mexico. We are especially interested in the ecology of these indigenous marine bacteria and the factors that allow them to survive in the environment, to cause disease in humans and other animals. Current research projects include: forecasting the abundance and distribution of V. parahaemolyticus and V. vulnificus in coastal waters by using satellite remote sensing; examining the abundance and distribution of virulent strains of V. parahaemolyticus in the Northern Gulf of Mexico; viable but nonculturable Vibrios; V. vulnificus and nerotizing fasciitis; naturally occurring Vibrios and other bacteria in elasmobranch fishes; examining the distribution and function of the enzyme urease in V. parahaemolyticus strains and understanding the role of Vibrios in biodegradation of wastes, including petroleum, in the ocean. Most recently, Grimes and Ph.D. student Shu "Eagle" Shu are looking at antibiotic resistance in marine bacteria and they are finding antibiotic resistant Vibrios.

Oceans and Human Health, offered fall semester at the USM Gulf Coast Research Laboratory