. The ecological impact of beach nourishment with dredged materials on the intertidal zone at Bogue Banks, North Carolina. Beach erosion; Dredging; Ecology. 200 352 k FORT MACON EMERALD ISLE NOURISHMENT "J 100. MONTH Figure 26. Seasonal variations in H, canadensis densities from the nourishment beach at Fort Macon, June 1977 to August 1978, and the comparison beach at Emerald Isle, September 1977 to August 1978. The actual period of nourishment is represented by a slashed line below the X-axis. were recruited from the calmer inlet waters or sound beaches. Dexter (1967, 1969) indicated tha
. The ecological impact of beach nourishment with dredged materials on the intertidal zone at Bogue Banks, North Carolina. Beach erosion; Dredging; Ecology. 200 352 k FORT MACON EMERALD ISLE NOURISHMENT "J 100. MONTH Figure 26. Seasonal variations in H, canadensis densities from the nourishment beach at Fort Macon, June 1977 to August 1978, and the comparison beach at Emerald Isle, September 1977 to August 1978. The actual period of nourishment is represented by a slashed line below the X-axis. were recruited from the calmer inlet waters or sound beaches. Dexter (1967, 1969) indicated that H. canadensis were very abundant on the protected Radio Island beach inside the inlet. This could explain the disparate densities between the study beach and the comparison beach before nourishment. This amphipod remained absent from any nourished part of the beach once nourishment began. It first reappeared on the nourished beach at a point very near the inlet. No other E. canadensis had been found at any other location by the end of this study. The life history and behavior of this organism does not favor a quick return to the nourished area. Density will remain low until enough of a "seed" population of H. canadensis can diffuse into the area. d. Scolelepis squamata. This indirect selective deposit-feeding spionid worm has widespread distribution (J. McDermott, Franklin Marshall College, Lancaster, Pennsylvania, personal communication, 1978) and has been reported as important in the lower swash zone (Matta, 1977) . Results of this study indi-^ cate that while it was an important member of the Fort Macon macrofauna, it was virtually absent from the Emerald Isle beach. The S. squamata density at Fort Macon declined from a prenourishment maximum of 120 individuals per square 46. 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 perfectl
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Keywords: ., bookcentury1900, bookcollectionbiodiversity, booksubjectecology
