Mapping essential fish ‘hardbottom’ habitat using sonar techniques: A local reef off Masonboro Island, North Carolina, USA
Vol 7, Issue 2, 2024
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Abstract
This study investigates an outcropping submarine reef, known as John Creek Hardbottom, located on the shoreface off Masonboro Island, North Carolina. The exposure is likely associated with the high-relief Pleistocene coquina calcarenite hardbottom reefs, which are prevalent off southeastern North Carolina. The reefs provide essential ecosystem services, which include habitat for a wide range of biological communities, in addition to acting as an important sand source for local beaches and providing substantial recreational fishing and diving opportunities. Due to their local importance, the National Oceanic and Atmospheric Administration (NOAA) has classified the reefs as Essential Fish Habitat (EFH). In this study, a range of different hydrographic survey techniques, including sidescan sonar and single-beam echosounding, were collected to produce a geo-referenced mosaic and bathymetric grid of the reef. The reef’s various morphological features are classified based on terminology from previous studies, and upon further examination, a new term for local hardbottom reef morphology, known as Importantly, John Creek’s unique morphology differs from other nearby hardbottoms, allowing this study to provide a wider understanding of local hardbottom characteristics. Due to their protected status, in addition to natural and anthropogenic threats they face, mapping and monitoring southeastern North Carolina’s reefs provides critical information for all stakeholders involved in sustainable coastal management decision-making.
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1. Mearns DL, Hine, AC, Riggs, SR. Comparison of sonographs taken before and after Hurricane Diana; Onslow Bay, North Carolina. Geology. 1988; 16: 267-270. doi: 10.1130/0091-7613(1988)0162.3.CO;2
2. Cleary WJ, Riggs SR, Marcy DC, Snyder SW. The influence of inherited geological framework upon a hardbottom-dominated shoreface on a high-energy shelf: Onslow Bay, North Carolina, USA. Geology of Siliciclastic Shelf Seas. 1996; 117(1): 249-226. doi: 10.1144/gsl.sp.1996.117.01.15
3. Taylor JC, Paxton AB, Voss CM, et al. Benthic habitat mapping and assessment in the Wilmington-East Wind Energy Call Area: final report. Available online: https://coastalscience.noaa.gov/data_reports/benthic-habitat-mapping-and-assessment-in-the-wilmington-east-wind-energy-call-area-final-report/ (accessed on 2 November 2024).
4. Cleary WJ, McLeod MA, Rauscher MA, et al. Beach Nourishment on Hurricane Impacted Barriers in Southeastern North Carolina, USA: Targeting Shoreface and Tidal Inlet Sand Resources. Journal of Coastal Research. 2000; 34: 232–255.
5. Marcy DC, Cleary WJ. Influence of inherited geologic framework upon a hardbottom dominated shoreface: Fort Fisher subaerial, Onslow Bay, North Carolina. United States Army Corps of Engineers. 1997; 102.
6. Snyder SW, Hoffman CW, Riggs SR. Seismic stratigraphic framework of the inner continental shelf: Mason Inlet to New Inlet, North Carolina. North Carolina Geological Survey Bulletin. 1994; 59.
7. Marcy DC. Influence of inherited geologic framework upon a hardbottom dominated shoreface: Fort Fisher subaerial headland, Onslow Bay, North Carolina [Master’s thesis]. University of North Carolina Wilmington; 1997.
8. Backstrom JT. Storm-driven sedimentary changes on the shoreface of a replenished beach: Kure Beach, North Carolina [Master’s thesis]. University of North Carolina Wilmington; 2002.
9. Dockal JA. Documentation and evaluation of radiocarbon dates from the ‘Cape Fear Coquina’ (Late Pleistocene) of Snows Cut, New Hanover County, North Carolina. Southeastern Geology. 1995; 35(4): 623–636.
10. Thieler ER, Brill AL, Cleary WJ, et al. Geology of Wrightsville Beach, North Carolina shoreface: Implications for the concept of shoreface profile of equilibrium. Marine Geology. 1995; 126(1–4): 271–287.
11. Doughty SD. The influence of inlet modifications, geologic framework, and storms on the recent evolution of Masonboro Island, NC [Master’s thesis]. University of North Carolina Wilmington; 2009.
12. Riggs SR, Snyder SW, Hine AC, Mearns DL. Hardbottom morphology and relationship to the geologic framework: Mid-Atlantic continental shelf. Journal of Sedimentary Research. 1996; 66(4): 830–846. doi: 10.1306/d4268419-2b26-11d7-8648000102c1865d
13. NOAA. Magnuson-Stevens Fishery Conservation and Management Act. NOAA; 1976.
14. NOAA. Magnuson-Stevens Fishery Conservation and Management Reauthorization Act. NOAA; 2007.
15. NOAA. Magnuson-Stevens Act Provisions; Essential Fish Habitat (EFH). The Daily Journal of the United States Government Federal Register. 2002; 67: 12.
16. Moorefield TP. Geologic processes and history of the Fort Fisher coastal area, North Carolina [Master’s thesis]. East Carolina University; 2022.
17. Backstrom JT, Warden NM, Walsh CM. Optimizing offshore wind export cable routing using GIS-based environmental heat maps. Wind Energy Science. 2024; 9(5): 1105–1121. doi: 10.5194/wes-9-1105-2024
18. Renaud PE, Riggs SR, Ambrose Jr WG, et al. Biological-geological interactions: storm effects on macroalgal communities mediated by sediment characteristics and distribution. Continental Shelf Research. 1997; 17(1): 37–56.
19. Cleary WJ, Pilkey OH. Sedimentation in Onslow Bay. In: Guidebook for Field Excursions. Southeastern Geology Special Publication; 1968. p. 17.
20. Fear J. A Comprehensive Site Profile for the North Carolina National Estuarine Research Reserve. NC National Estuarine Research Reserve. 2008.
21. Freshwater DW, Whitfield PE, Buckle CA, et al. Epibenthic community assessments indicate high spatial and temporal variability among continental shelf hard bottom sites in a marine transition zone. Regional Studies in Marine Science. 2016; 41–50. doi: 10.1016/j.rsma.2016.01.005
22. Backstrom JT, Loureiro C, Eulie DO. Impacts of Hurricane Matthew on adjacent developed and undeveloped barrier islands in southeastern North Carolina. Regional Studies in Marine Science. 2022; 53: 102391. doi: 10.1016/j.rsma.2022.102391
23. Cook JW, Nelson BA, Riggs SR, Snyder SW. Bioerosion of hardbottoms and sediment production on a sediment-starved, mid-Atlantic continental shelf. Geological Society of America, Abstracts with Programs. 1995; 27(6): A427–A428.
24. Head ME. Use of High-resolution Sidescan Sonar Data to Quantitatively Map and Monitor a Mid-continental Shelf Hardbottom: 23-mile Site, Onslow Bay, NC [Master’s thesis]. University of North Carolina Wilmington; 2004.
DOI: https://doi.org/10.24294/nrcr10488
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