It shall be unlawful, at any time, to sell, offer for sale, barter, traffic in or purchase any game fish so classified under the provisions of Section 50-1-30, except as to fresh-water trout as provided in Sections 50-13-1680 and 50-13-1740, regardless of where caught. Any person violating this section is guilty of a misdemeanor and, upon conviction, shall for the first offense be fined not less than one hundred dollars nor more than three hundred dollars. For the second offense within five years of the date of conviction for the first offense, he shall be fined not less than two hundred dollars nor more than five hundred dollars and be imprisoned for thirty days. For a third offense within five years of the date of conviction for the first offense, he shall be fined not less than five hundred dollars nor more than one thousand dollars and be imprisoned for not more than thirty days. Fourth and subsequent offenses within five years of the date of conviction for the first offense shall be punished as provided for a third offense.