Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry

Eastern oysters (<i>Crassostrea virginica)</i> are an important component of the ecology and economy in coastal zones. Through the long-term consolidation of densely clustered shells, oyster reefs generate three-dimensional and complex structures that yield a suite of ecosystem services,...

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Main Authors: Anna E. Windle, Brandon Puckett, Klaus B. Huebert, Zofia Knorek, David W. Johnston, Justin T. Ridge
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Remote Sensing
Subjects:
Online Access:https://www.mdpi.com/2072-4292/14/9/2163
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author Anna E. Windle
Brandon Puckett
Klaus B. Huebert
Zofia Knorek
David W. Johnston
Justin T. Ridge
author_facet Anna E. Windle
Brandon Puckett
Klaus B. Huebert
Zofia Knorek
David W. Johnston
Justin T. Ridge
author_sort Anna E. Windle
collection DOAJ
description Eastern oysters (<i>Crassostrea virginica)</i> are an important component of the ecology and economy in coastal zones. Through the long-term consolidation of densely clustered shells, oyster reefs generate three-dimensional and complex structures that yield a suite of ecosystem services, such as nursery habitat, stabilizing shorelines, regulating nutrients, and increasing biological diversity. The decline of global oyster habitat has been well documented and can be attributed to factors, such as overharvesting, pollution, and disease. Monitoring oyster reefs is necessary to evaluate persistence and track changes in habitat conditions but can be time and labor intensive. In this present study, spectral and structural metrics of intertidal oyster reefs derived from Unoccupied Aircraft Systems (UAS) and Structure from Motion (SfM) outputs are used to estimate intertidal oyster density. This workflow provides a remote, rapid, nondestructive, and potentially standardizable method to assess large-scale intertidal oyster reef density that will significantly improve management strategies to protect this important coastal resource from habitat degradation.
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spelling doaj.art-792a1dd6a8934a2ba23003061b2474632023-11-23T09:11:35ZengMDPI AGRemote Sensing2072-42922022-04-01149216310.3390/rs14092163Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion PhotogrammetryAnna E. Windle0Brandon Puckett1Klaus B. Huebert2Zofia Knorek3David W. Johnston4Justin T. Ridge5Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD 21613, USANorth Carolina Coastal Reserve and National Estuarine Research Reserve, Beaufort, NC 28516, USAHorn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD 21613, USAInstitute of Marine Sciences, University of North Carolina, Morehead City, NC 28556, USADivision of Marine Science and Conservation, Duke University Marine Laboratory, Nicholas School of the Environment, Duke University, Beaufort, NC 28516, USADivision of Marine Science and Conservation, Duke University Marine Laboratory, Nicholas School of the Environment, Duke University, Beaufort, NC 28516, USAEastern oysters (<i>Crassostrea virginica)</i> are an important component of the ecology and economy in coastal zones. Through the long-term consolidation of densely clustered shells, oyster reefs generate three-dimensional and complex structures that yield a suite of ecosystem services, such as nursery habitat, stabilizing shorelines, regulating nutrients, and increasing biological diversity. The decline of global oyster habitat has been well documented and can be attributed to factors, such as overharvesting, pollution, and disease. Monitoring oyster reefs is necessary to evaluate persistence and track changes in habitat conditions but can be time and labor intensive. In this present study, spectral and structural metrics of intertidal oyster reefs derived from Unoccupied Aircraft Systems (UAS) and Structure from Motion (SfM) outputs are used to estimate intertidal oyster density. This workflow provides a remote, rapid, nondestructive, and potentially standardizable method to assess large-scale intertidal oyster reef density that will significantly improve management strategies to protect this important coastal resource from habitat degradation.https://www.mdpi.com/2072-4292/14/9/2163<i>Crassostrea virginica</i>eastern oyster reefsoyster densityUnoccupied Aircraft SystemsStructure from Motion photogrammetryremote sensing
spellingShingle Anna E. Windle
Brandon Puckett
Klaus B. Huebert
Zofia Knorek
David W. Johnston
Justin T. Ridge
Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry
Remote Sensing
<i>Crassostrea virginica</i>
eastern oyster reefs
oyster density
Unoccupied Aircraft Systems
Structure from Motion photogrammetry
remote sensing
title Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry
title_full Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry
title_fullStr Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry
title_full_unstemmed Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry
title_short Estimation of Intertidal Oyster Reef Density Using Spectral and Structural Characteristics Derived from Unoccupied Aircraft Systems and Structure from Motion Photogrammetry
title_sort estimation of intertidal oyster reef density using spectral and structural characteristics derived from unoccupied aircraft systems and structure from motion photogrammetry
topic <i>Crassostrea virginica</i>
eastern oyster reefs
oyster density
Unoccupied Aircraft Systems
Structure from Motion photogrammetry
remote sensing
url https://www.mdpi.com/2072-4292/14/9/2163
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