The commissioner may, after public notice and hearing, determine the location of a line across any stream flowing into Long Island Sound, Fishers Island Sound or Little Narragansett Bay, or any tributary thereof, above which line such water shall be known as “inland water” and below which line such water shall be known as the “marine district”. Such notice shall be published at least twice in a newspaper having a circulation in the county within which any such stream enters either of said sounds or said bay.