S.C. Code Ann. § 50-13-647

It is unlawful to take, harm, or kill robust redhorse (moxostoma robustum) from public waters. Any robust redhorse taken must be returned immediately to the water from which it was taken. A person who violates the provisions of this section is guilty of a misdemeanor and, upon conviction, must be fined not more than five hundred dollars for a first offense and not more than one thousand dollars for each subsequent offense.