A Preliminary Assessment of the Occurrence of the Invasive Asian Green Mussel, Perna viridis, in South Carolina A Report to the South Carolina Sea Grant Consortium by David M. Knott, Elizabeth L. Wenner and Rachael A. King Marine Resources Research Institute Marine Resources Division South Carolina Department of Natural Resources October 31, 2008 Grant # R11C-R110 NOAA NA06OAR4170015