. Brimleyana. Zoology; Ecology; Natural history. 112 William S. Birkhead and Charles R. Bennett inant vegetation in these areas. As ground elevation increases slightly in the upper reaches of the estuary, the regularly flooded marsh grades into irregularly flooded marsh dominated by Juncus roemerianus (Seneca etal. 1976). Carolina Power and Light Company began constructing a nuclear- fueled, steam electric generating plant just north of Southport approxi- mately two years before our study began. This facility was designed to employ a once-through cooling system. The discharge canal for the coo
. Brimleyana. Zoology; Ecology; Natural history. 112 William S. Birkhead and Charles R. Bennett inant vegetation in these areas. As ground elevation increases slightly in the upper reaches of the estuary, the regularly flooded marsh grades into irregularly flooded marsh dominated by Juncus roemerianus (Seneca etal. 1976). Carolina Power and Light Company began constructing a nuclear- fueled, steam electric generating plant just north of Southport approxi- mately two years before our study began. This facility was designed to employ a once-through cooling system. The discharge canal for the cooling system was constructed during the summer and fall of 1972, along the northwestern and western edge of the salt marsh bordering Dutchman Creek. This was between 9 and 16 months after our study began. Freshwater runoff from the upper reaches of the bisected tribu- taries and headwaters of Dutchman Creek was diverted into a drainage canal dredged adjacent to the discharge canal (Fig. 1). The drainage canal emptied into the Intracoastal Waterway approximately km west of the mouth of Dutchman Creek. Although the hydrographic regime of the lower reaches of the Dutchman Creek estuary was not appreciably affected by the diversion of the freshwater input, salinity increases of between 13 and 15 ppt were recorded in the upper reaches of the estuary below the canal right-of-way and at the mouths of the severed headwaters and tributaries above these canals (Birkhead et al. 1977). The primary purpose of this paper is to denote the distribution of alligators within the Dutchman Creek estuary before, during, and after its Fig. 1. Map of Dutchman Creek estuary with sampling Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original North Carolina State Museum of Natural History. [Raleigh, NC : North Ca
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