Enhanced Analysis of Pervious Oyster Shell Habitat (POSH) Units’ Performance for Reducing Bed Stress and Mitigating Shoreline Erosion
Publication: Geo-Congress 2024
ABSTRACT
A new method for shoreline protection was developed by “seeding” oyster reefs with structures built from recycled oyster shell and Portland cement. These pervious oyster shell habitat (POSH) units attract young oysters more quickly than traditional concrete shoreline protection structures. From 2021 to 2023, several POSH units were placed in the mid-intertidal zone along the shoreline of the Fort George River within the Timucuan Ecological and Historic Preserve (Duval County, FL). Preliminary findings which showed stress reduction along the shorelines and erosion mitigation were presented at Geo-Congress 2023. This paper highlights further evaluation of the effectiveness of these units at reducing bed stress and mitigating erosion using a combination of field observations, wave measurements, aerial imagery, and computational fluid dynamics.
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REFERENCES
Androulakis, D. N., Dounas, C. G., Banks, A. C., Magoulas, A. N., and Margaris, D. P. (2020). “An assessment of computational fluid dynamics as a tool to aid the design of the HCMR-artificial-reefsTM diving oasis in the underwater biotechnological park of Crete.” Sustainability., 12 (12), 4847.
ASTM. (2001). Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates (C136-01), ASTM, West Conshohocken, PA.
ASTM. (2006). Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System) (D2487-06), ASTM, West Conshohocken, PA.
Beck, M. W., et al. (2011). “Oyster reefs at risk and recommendations for conservation, restoration, and management.” BioScience., 61 (2), 107–16.
Breuer, M., Jovičić, N., and Mazaev, K. (2003). “Comparison of DES, RANS and LES for the separated flow around a flat plate at high incidence.” Int. J. Numer. Methods Fluids., 41 (4), 357–88.
Cope, L., Waggoner, J., Mathews, H., Smith, K. J., and Crowley, R. (2023a). “Analysis of pervious oyster shell habitat (POSH) unit effectiveness using computational fluid dynamics (CFD) and field observations.” Geo-Congress 2023, 35–44.
Cope, L., Waggoner, J., Mathews, H., Smith, K. J., and Crowley, R. (2023b). “Effectiveness of pervious oyster shell habitat (POSH) units at reducing shoreline bed stress and erosion.” Coastal Sediments 2023, 2048–2058.
Forlini, C., Qayyum, R., Malej, M., Lam, M.-A. Y.-H., Shi, F., Angelini, C., and Sheremet, A. (2021). “On the problem of modeling the boat wake climate: The Florida Intracoastal Waterway.” J. Geophys. Res.: Oceans., 126 (2), e2020JC016676.
Mathews, H., Uddin, M. J., Hargis, C. W., and Smith, K. J. (2023). “First-year performance of the pervious oyster shell habitat (POSH) along two energetic shorelines in northeast Florida. Sustainability, 15(9), 7028.
Maslov, D., Johnson, J., Pereira, E., Duarte, D., Miranda, T., Lima, M., Cruz, F., Valente, I., and Pinheiro, M. (2019). “Experimental testing and CFD modelling for prototype design of innovative artificial reef structures.” In OCEANS 2019, Marseille: (pp. 1–7). IEEE.
Morris, R. L., et al. (2019). “The application of oyster reefs in shoreline protection: Are we over‐engineering for an ecosystem engineer?.” J. Appl. Ecol., 56 (7), 1703–11.
Natrx. (2023). “A closer look at the Natrx OysterBreak system.” https://natrx.io/the-natrx-oysterbreak-system.
Nicoud, F., and Ducros, F. (1999). “Subgrid-Scale Stress Modeling Based on the Square of the Velocity Gradient Tensor.” Flow, Turbulence, and Combustion., 62, 183–200.
Radabaugh, K. R., Powell, C. E., and Moyer, R. P. (2017). “Coastal Habitat Integrated Mapping and Monitoring Program Report for the State of Florida.” Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute.
Reef Ball Foundation. (2023). “Reef Ball Landing Page.” http://www.reefball.org.
Rodriguez, A. B., et al. (2014). “Oyster reefs can outpace sea-level rise.” Nat. Clim. Change., 4 (6), 493–7.
Safak, I., et al. (2020). “Coupling breakwalls with oyster restoration structures enhances living shoreline performance along energetic shorelines.” Ecol. Eng., 158, 106071.
Shields, A. (1936). Application of similarity principles and turbulence research to bed-load movement. California Institute of Technology, Pasadena (Translated from German).
Siemens. (2023). Simcenter STAR-CCM+ User Guide. Siemens.
Uddin, M. J., Smith, K. J., and Hargis, C. W. (2021). “Development of pervious oyster shell habitat (POSH) concrete for reef restoration and living shorelines.” Constr. Build. Mater., 295, 123685.
Waggoner, J. (2022). Comparison between pervious oyster shell habitat (POSH) unit and reef ball performance along an eroding shoreline in northeast Florida. MS Thesis, University of North Florida, Jacksonville, FL.
Wallace, C., Camp, E., and Smyth, A. 2022. “Oyster habitat restoration and shoreline protection.”, University of Florida, Gainesville, FL, https://edis.ifas.ufl.edu/publication/FR446.
Information & Authors
Information
Published In
Geo-Congress 2024
Pages: 549 - 558
History
Published online: Feb 22, 2024
ASCE Technical Topics:
- Architectural engineering
- Building management
- Business management
- Coastal engineering
- Coastal protection structures
- Coasts, oceans, ports, and waterways engineering
- Computational fluid dynamics technique
- Erosion
- Fluid dynamics
- Fluid mechanics
- Geology
- Geotechnical engineering
- Historic preservation
- Hydrologic engineering
- Mitigation and remediation
- Practice and Profession
- Shell structures
- Shoreline protection
- Shores
- Stress (by type)
- Stress analysis
- Structural analysis
- Structural engineering
- Structures (by type)
- Water and water resources
Authors
Metrics & Citations
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