1. Dauphin Island Sea Laboratory, 101 Bienville Boulevard, Dauphin Island, AL 36528, USA.
2. Department of Marine Sciences, University of North Carolina at Chapel Hill, CB #3300, 12-2 Venable Hall, Chapel Hill, NC 27599-3300, USA.
3. Ecological Sciences Program, PBS&J, 2001 NW 107th Avenue, Miami, FL 33172, USA.
4. Division of Marine Biology and Fisheries, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL 33149, USA.
5. Department of Ecology and Evolutionary Biology, Cornell University, E-321 Corson Hall, Ithaca, NY 14853, USA.
6. Department of Biology, Boston University, 5 Cummington Street, Boston, MA 02215, USA.
7. U.S. Geological Survey, Caribbean Field Station, St. John, USVI 00830.
8. U.S. Geological Survey Center for Coastal Geology, 600 4th Street South, St. Petersburg, FL 33701, USA.