Dr. Sotka Studies Invasive Seaweeds

Dr. Erik Sotka at the College of Charleston’s Grice Marine Laboratory is documenting how two invasive seaweeds appear to be negatively impacting our economy and health of our ecosystem. Over the last decade, Gracilaria vermiculophylla has become extremely common along the mudflats in several South Carolina estuaries, including Charleston Harbor, St. Helena Sound and Port Royal Sound. A second species, Polysiphonia breviarticulata, undergoes a ‘boom-and-bust’ cycle that is poorly understood. Its blooms occur largely outside of the estuaries within a few miles of the shoreline. The Sun News, the Island Packetand the Post and Courier have published articles addressing the impact of these algal species on coastal South Carolina.

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