1. Institute of Marine Sciences University of North Carolina at Chapel Hill Morehead City North Carolina 28557 USA
2. Department of Environmental Engineering and Earth Sciences Clemson University Anderson South Carolina 29625 USA
3. Department of Biology East Carolina University Greenville North Carolina 27858 USA
4. Duke University Marine Laboratory Beaufort North Carolina 28516 USA
5. Coastal Studies Institute East Carolina University Wanchese North Carolina 27891 USA