In pursuance of Article III of said compact there shall be 2 members, hereinafter called commissioners of the Connecticut River Atlantic Salmon Commission, hereinafter called commission, from the state of New Hampshire. The first commissioner from the state of New Hampshire shall be the executive director of the fish and game department, and the term of such commissioner shall terminate at the time he ceases to hold said office of executive director, and his successor as commissioner shall be his successor as such executive director. The governor, with the advice and consent of the council, shall appoint a citizen as a second commissioner who shall have a knowledge of and interest in Atlantic salmon. The term of said commissioner shall be 3 years and he shall hold office until his successor shall be appointed and qualified. A vacancy occurring in the office of the second commissioner for any reason or cause shall be filled by appointment by the governor with the advice and consent of the council for the unexpired term. The executive director of fish and game may delegate, from time to time, to any assistant in his office the power to be present and participate, including voting, as his representative at any meeting of or hearing by or other proceeding of the commission. The terms of each of the initial 2 members shall begin at the date of the appointment of the appointive commissioner provided the said compact shall then have gone into effect in accordance with Article II of the compact; otherwise they shall begin upon the date upon which said compact shall become effective in accordance with said Article II. Any commissioner may be removed from office by the governor upon charges and after a hearing.