In carrying out the purposes of this chapter in furtherance of the provisions of Title 3, section 335(a)(5) of the Code, the Department of Planning and Natural Resources, through its Commissioner, shall be responsible for the active and vigorous promotion of the commercial fishing industry, in all of its aspects, in the United States Virgin Islands. As used in this chapter the word “Commissioner” shall mean the Commissioner of the Department of Planning and Natural Resources or his authorized designee, agent or employee.