Whenever open seasons for hunting, fishing or trapping have been curtailed by a proclamation of the Governor pursuant to section 9-1101 of this chapter closing forests and woodlands, or open lands or waters to the public, or suspending an open season for taking fish or wildlife, because of danger of fire, the department, at the expiration of the effective period of the proclamation, shall have power, within the limits of counties affected by the proclamation, to extend by regulation any open season, for a period not to exceed the effective period of the proclamation.