Any person, firm, or corporation, violating this chapter, is guilty of a misdemeanor, and upon conviction, shall be fined twice the fee for the required license, or be imprisoned not more than three (3) months, or both, and shall forfeit any license issued by the department for a period of not less than twelve (12) consecutive months from the date of conviction. Any violator whose license has been revoked and who is apprehended for taking mussels during the twelve-month period of revocation shall be imprisoned not less than thirty (30) days nor more than six (6) months.