A person taking shad, herring, or eels for commercial purposes: (1) in the salt waters of this State, must obtain a commercial saltwater fishing license and a commercial saltwater equipment license and related permits; (2) in the freshwaters of this State, must obtain a commercial freshwater license and a commercial saltwater equipment license and related permits. Section 50-9-430. The cost for a scientific collection permit is ten dollars.
Requirements for taking shad, herring, or eels for commercial purposes
S.C. Code Ann. § 50-9-420, under Title 50, Chapter 9.
S.C. Code Ann. § 50-9-420