Details
| Original language | English |
|---|---|
| Article number | 102 |
| Journal | Estuaries and coasts |
| Volume | 48 |
| Publication status | Published - 23 Apr 2025 |
Abstract
Oyster reef restoration increasingly pursues the goal of enhancing coastal protection that can lead to a reduction in loading on shorelines through flow attenuation of waves and currents. However, flow attenuation is dependent on factors such as reef submergence, width and complexity. Yet the relationship between elements of the oyster reef landscape and flow attenuation is still not fully understood, making it challenging to design nature-based solutions for coastal protection. The topographical roughness characteristics of Sydney rock oyster (Saccostrea glomerata) reef surfaces were investigated using spatial statistics extracted from digital elevation models. Oyster agglomerations were classified into three distinct structural classes (Patch I, Patch II and Cluster) to differentiate intra-reef complexity. Patch I types had greater roughness heights (total roughness height, kt = 74 ± 10 mm) than Patch II (kt = 56 ± 9 mm). Benthic flow instantaneous velocity readings were taken at windward, leeward and on-reef points for each delineated structural class. Of the samples examined, observations were made that oyster beds with higher kt values experienced greater flow reduction. While a direct link cannot be established, with future work, the results of this study can assist in achieving meaningful targets for patch-scale oyster reef restoration substrate.
Keywords
- Bed roughness, Flow attenuation, Oyster reef, Saccostrea glomerata
ASJC Scopus subject areas
- Agricultural and Biological Sciences(all)
- Ecology, Evolution, Behavior and Systematics
- Environmental Science(all)
- Ecology
- Agricultural and Biological Sciences(all)
- Aquatic Science
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In: Estuaries and coasts, Vol. 48, 102, 23.04.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Intra-reef Surface Complexity of the Oyster Saccostrea glomerata and Its Influence on Surrounding Flow
AU - Barclay, James
AU - Hitzegrad, Jan
AU - Keimer, Kara
AU - Lanham, Brendan S.
AU - Pomeroy, Andrew W.M.
AU - Lojek, Oliver
AU - Goseberg, Nils
AU - Morris, Rebecca L.
N1 - Publisher Copyright: © The Author(s) 2025.
PY - 2025/4/23
Y1 - 2025/4/23
N2 - Oyster reef restoration increasingly pursues the goal of enhancing coastal protection that can lead to a reduction in loading on shorelines through flow attenuation of waves and currents. However, flow attenuation is dependent on factors such as reef submergence, width and complexity. Yet the relationship between elements of the oyster reef landscape and flow attenuation is still not fully understood, making it challenging to design nature-based solutions for coastal protection. The topographical roughness characteristics of Sydney rock oyster (Saccostrea glomerata) reef surfaces were investigated using spatial statistics extracted from digital elevation models. Oyster agglomerations were classified into three distinct structural classes (Patch I, Patch II and Cluster) to differentiate intra-reef complexity. Patch I types had greater roughness heights (total roughness height, kt = 74 ± 10 mm) than Patch II (kt = 56 ± 9 mm). Benthic flow instantaneous velocity readings were taken at windward, leeward and on-reef points for each delineated structural class. Of the samples examined, observations were made that oyster beds with higher kt values experienced greater flow reduction. While a direct link cannot be established, with future work, the results of this study can assist in achieving meaningful targets for patch-scale oyster reef restoration substrate.
AB - Oyster reef restoration increasingly pursues the goal of enhancing coastal protection that can lead to a reduction in loading on shorelines through flow attenuation of waves and currents. However, flow attenuation is dependent on factors such as reef submergence, width and complexity. Yet the relationship between elements of the oyster reef landscape and flow attenuation is still not fully understood, making it challenging to design nature-based solutions for coastal protection. The topographical roughness characteristics of Sydney rock oyster (Saccostrea glomerata) reef surfaces were investigated using spatial statistics extracted from digital elevation models. Oyster agglomerations were classified into three distinct structural classes (Patch I, Patch II and Cluster) to differentiate intra-reef complexity. Patch I types had greater roughness heights (total roughness height, kt = 74 ± 10 mm) than Patch II (kt = 56 ± 9 mm). Benthic flow instantaneous velocity readings were taken at windward, leeward and on-reef points for each delineated structural class. Of the samples examined, observations were made that oyster beds with higher kt values experienced greater flow reduction. While a direct link cannot be established, with future work, the results of this study can assist in achieving meaningful targets for patch-scale oyster reef restoration substrate.
KW - Bed roughness
KW - Flow attenuation
KW - Oyster reef
KW - Saccostrea glomerata
UR - http://www.scopus.com/inward/record.url?scp=105003097831&partnerID=8YFLogxK
U2 - 10.1007/s12237-025-01535-y
DO - 10.1007/s12237-025-01535-y
M3 - Article
AN - SCOPUS:105003097831
VL - 48
JO - Estuaries and coasts
JF - Estuaries and coasts
SN - 1559-2723
M1 - 102
ER -