1. Postdoctoral Associate, Institute of Marine Sciences, Univ. of North Carolina at Chapel Hill, 3431 Arendell St., Morehead City, NC 28557 (corresponding author). E-mail: jsfries@email.unc.edu
2. Assistant Professor, Dept. of Environmental Sciences & Engineering, Univ. of North Carolina at Chapel Hill, Rosenau Hall CB# 7431, Chapel Hill, NC 27599.
3. Assistant Professor, Institute of Marine Sciences, Univ. of North Carolina at Chapel Hill, 3431 Arendell St., Morehead City, NC 28557.