Upon the request of the boards of supervisors of the respective coastal counties, the commission may adopt ordinances prohibiting the taking and catching of menhaden within certain limits of the coast line of the county so requesting, but the commission shall not fix such limits except upon request of the board of supervisors, and such limit shall not exceed two (2) miles from the shore line, or two (2) miles from the corporate limit boundaries of any municipality bordering on the Mississippi Sound.