For more than 6,000 years, Southwest Florida's rich estuaries have been fished for food. In this first of a three-part series, historians and long-time commercial fishermen tell the story of Southwest Florida's "fisherfolk," from the ancient Calusas, who left a legacy of shell mounds--and more--to the rise and fall of mullet fishing. From shirmp trawlers, to clam dredges, to stone crab trapping, "fisherfolk" represent one of the most colorful and vital aspects of regional history.