(a) As used in this Code section, the term "Atlantic billfish" means Atlantic blue marlin and Atlantic white marlin harvested from all waters of the Atlantic Ocean, including without limitation the Gulf of Mexico and the Caribbean Sea, and Atlantic sailfish harvested from the waters of the North and South Atlantic Oceans, including without limitation the Gulf of Mexico and the Caribbean Sea, west of 30 degrees west longitude.

(b) It is unlawful for a person to have in his or her possession any Atlantic billfish or to take from the waters of the state any Atlantic billfish except for the catch and release of such fish into the waters from which they were taken.