1. Department of Biological Sciences, Auburn University , Auburn, AL
2. Department of Biology, Johns Hopkins University , Baltimore, MD
3. W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health , Baltimore, MD
4. Center for Marine Science, University of North Carolina Wilmington , Wlimington, NC
5. Hopkins Marine Station, Stanford University , Pacific Grove, CA