Megan La Peyre, PhD (Former Employee)
Science and Products
A Case Study Assessing the Cumulative Effects of Deepwater Horizon Restoration Projects on Barrier Island/Barrier Shoreline Ecosystem Resilience in the North-central Gulf
USGS and partners will assess the potential cumulative effects of restoration projects on the resiliency of barrier islands and barrier shorelines in the north-central Gulf.
Developing an Oyster Metapopulation Model for Louisiana Estuaries to Assess Reef Connectivity, Recruitment, and Sustainability in support of Louisiana Monitoring and Adaptive Management Strategy
USGS and collaborators are co-producing integrated oceanographic and ecological modeling to support decision making in Louisiana estuaries.
A Roadmap for Developing Resilient Coastal Shellfish Populations: Using Spatial and Process-Based Modelling for Restoration Under Current and Predicted Future Water Quality Conditions
Estuaries support valuable recreation, fisheries, and aquaculture and are dependent on healthy and vibrant ecosystems. Along the northern Gulf of America, estuaries sustain local economies through their high productivity. They also receive over 50% of the United States watershed discharge, and water quality within these estuaries is impacted by local management actions. Within these...
Model Improvements for Louisiana’s 2023 Coastal Master Plan
The Louisiana Coastal Protection and Restoration Authority’s Coastal Master Plan is a blueprint for responding to environmental changes. As part of the agency’s continued engagement, USGS supports model developments and improvements for the 2023 Coastal Master Plan.
Long-term change on barrier islands and barrier shorelines from extreme storms and restoration along the north central Gulf of Mexico coast Long-term change on barrier islands and barrier shorelines from extreme storms and restoration along the north central Gulf of Mexico coast
These data utilize existing land cover products and elevation information to provide information on changes on barrier islands and barrier shorelines along the north central Gulf of Mexico coast. Specifically, this data release includes information on changes in subaerial land, habitat types, and high-tide flooding for barrier islands and barrier shorelines along the north central Gulf...
Information supporting a cumulative effects assessment of restoration in barrier island and shoreline systems of the north central Gulf of Mexico Information supporting a cumulative effects assessment of restoration in barrier island and shoreline systems of the north central Gulf of Mexico
Information was gathered to support a cumulative effects assessment of restoration in barrier island and shoreline systems of the north central Gulf of Mexico. Information includes: 1) results from two literature searches to help guide the development of a conceptual model of a barrier island and shoreline system and identify drivers and stressors important to that system, and 2) an...
Eastern oyster Dynamic Energy Budget model outputs under current (2014-2020) and projected (2041-2050) temperature and salinity conditions in Texas and Louisiana estuaries and along northern Gulf of Mexico coast Eastern oyster Dynamic Energy Budget model outputs under current (2014-2020) and projected (2041-2050) temperature and salinity conditions in Texas and Louisiana estuaries and along northern Gulf of Mexico coast
Compilation of all outputs from the modeling study presented in Lavaud et al. (2023; IP-156006). In this study a Dynamic Energy Budget (DEB) model for the eastern oyster, Crassostrea virginica, was run under different scenarios of current (2014–2020) and future (2041–2050) temperature and salinity conditions across six key Texas and Louisiana estuaries to derive an aquaculture index...
Bio-engineered oyster reef monitoring, Eloi Bay, Louisiana, 2017-2019 Bio-engineered oyster reef monitoring, Eloi Bay, Louisiana, 2017-2019
This dataset includes annual encrusting organism (oyster, mussel, barnacle) counts and density (ind m-2), and oyster shell height (mm) data for five bio-engineered reef designs: OysterbreakTM (OB), Wave Attenuating Device (WAD), Reef Ball (rows of two, RFB2; rows of three, RFB3), ReefBLK? (RBL), and ShoreJAX (JAX). Data were collected during winter months (i.e., December-January) in 2017...
Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island
A barrier island seagrass habitat suitability index (HSI) model was developed for the Alabama barrier island restoration assessment at Dauphin Island. Shoal grass (Halodule wrightii) was selected as the representative species for seagrass community near Dauphin Island waters since H. wrightii is the dominant species (>62%) of seagrass communities in this area due to its rapid growth and...
Oyster habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island Oyster habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island
A spatially explicit oyster habitat suitability index (HSI) model was developed for the Alabama barrier island restoration assessment at Dauphin Island. Based on previous oyster habitat suitability studies, seven water quality variables were selected and their relationships with habitat suitability were developed and incorporated into the oyster HSI model for Dauphin Island restoration...
Filter Total Items: 94
Multiscale framework for assessing land cover change on barrier islands from extreme storms and restoration Multiscale framework for assessing land cover change on barrier islands from extreme storms and restoration
Often found along the estuarine-marine interface, barrier islands and mainland coastal zones are shaped by tides, currents, extreme storms, and relative sea-level rise. These systems provide ecosystem services such as storm surge and wave attenuation, erosion protection to inland areas, habitat for fish and wildlife, recreation, and tourism. Given the importance of these ecosystems...
Authors
Nicholas Enwright, P. Soupy Dalyander, Casey M. Stuht, Minoo Han, Margaret L. Palmsten, Theresa M. Davenport, Christopher J. Kingwill, Gregory Steyer, Megan La Peyre
Comparison of two benthic assemblage sampling gears for use on intertidal oyster reefs in Louisiana Comparison of two benthic assemblage sampling gears for use on intertidal oyster reefs in Louisiana
Background Estuarine biodiversity plays a vital role in supporting ecosystem functions yet remains threatened by climate change and anthropogenic activity. Tracking and identifying estuarine biodiversity trends helps management ensure long-term provisions of human and environmental benefits by contributing to the estimation of habitat loss and the monitoring of restoration and...
Authors
Finella M. Campanino, Stephanie K. Archer, Jillian C. Tuptiza, Cassandra N. Glaspie, Megan La Peyre
Vulnerability of gulf ribbed mussels to marsh surface maximum temperatures Vulnerability of gulf ribbed mussels to marsh surface maximum temperatures
Gulf ribbed mussels (Geukensia granosissima) act as ecosystem engineers and reside within the marsh platform of saltmarshes across the northern Gulf of Mexico. With climate models projecting increasing temperatures, and more frequent and extreme heat events, these mussels face increasing temperature-related risks. Marsh surface and subsurface (5-cm depth) temperature was measured...
Authors
Skylar R. Liner, Brian J. Roberts, Nicholas Coxe, Romain Lavaud, Jerome F. La Peyre, Megan La Peyre
Multiple dimensions define thresholds for population resilience of the eastern oyster, Crassostrea virginica Multiple dimensions define thresholds for population resilience of the eastern oyster, Crassostrea virginica
A species' distribution depends on its tolerance to environmental conditions. These conditions are defined by a minimum, maximum, and optimal ranges of single and combined factors. Forays into environmental conditions outside the minimum or maximum tolerance of a species (i.e., thresholds) are predicted to have large effects on a species' population and may help predict population...
Authors
Megan K. La Peyre, H. Wang, Shaye E. Sable, Wei Wu, Bin Li, Devin Comba, Carlos Perez, Melanie Bates, Lauren M. Swam
Cumulative effects assessment of restoration programs: A framework to assess achievement of regional and programmatic goals Cumulative effects assessment of restoration programs: A framework to assess achievement of regional and programmatic goals
Increasing global investments focused on conservation and restoration of natural resources aim to address challenges presented by climate change and biodiversity loss. Many restoration and conservation program assessments examine individual actions, assuming additive effects only, failing to acknowledge or capture potential synergistic or antagonistic effects across a region or program...
Authors
T. M. Davenport, D. A. Comba, P. S. Dalyander, Nicholas Enwright, Margaret L. Palmsten, Gregory Steyer, Megan La Peyre
The use of conceptual ecological models to identify critical data and uncertainties to support numerical modeling: The northern Gulf of Mexico eastern oyster Crassostrea virginica example The use of conceptual ecological models to identify critical data and uncertainties to support numerical modeling: The northern Gulf of Mexico eastern oyster Crassostrea virginica example
Objective Increasing reliance on numerical simulation models to help inform management and restoration choices benefits from careful consideration of critical early steps in model development. Along the northern coast of the Gulf of Mexico, the eastern oyster Crassostrea virginica fulfills important ecological and economic roles. Using the eastern oyster as an example, we draw on several...
Authors
Megan K. La Peyre, Shaye Sable, Danielle A. Marshall, Elise R. Irwin, Chad W. Hanson
Science and Products
A Case Study Assessing the Cumulative Effects of Deepwater Horizon Restoration Projects on Barrier Island/Barrier Shoreline Ecosystem Resilience in the North-central Gulf
USGS and partners will assess the potential cumulative effects of restoration projects on the resiliency of barrier islands and barrier shorelines in the north-central Gulf.
Developing an Oyster Metapopulation Model for Louisiana Estuaries to Assess Reef Connectivity, Recruitment, and Sustainability in support of Louisiana Monitoring and Adaptive Management Strategy
USGS and collaborators are co-producing integrated oceanographic and ecological modeling to support decision making in Louisiana estuaries.
A Roadmap for Developing Resilient Coastal Shellfish Populations: Using Spatial and Process-Based Modelling for Restoration Under Current and Predicted Future Water Quality Conditions
Estuaries support valuable recreation, fisheries, and aquaculture and are dependent on healthy and vibrant ecosystems. Along the northern Gulf of America, estuaries sustain local economies through their high productivity. They also receive over 50% of the United States watershed discharge, and water quality within these estuaries is impacted by local management actions. Within these...
Model Improvements for Louisiana’s 2023 Coastal Master Plan
The Louisiana Coastal Protection and Restoration Authority’s Coastal Master Plan is a blueprint for responding to environmental changes. As part of the agency’s continued engagement, USGS supports model developments and improvements for the 2023 Coastal Master Plan.
Long-term change on barrier islands and barrier shorelines from extreme storms and restoration along the north central Gulf of Mexico coast Long-term change on barrier islands and barrier shorelines from extreme storms and restoration along the north central Gulf of Mexico coast
These data utilize existing land cover products and elevation information to provide information on changes on barrier islands and barrier shorelines along the north central Gulf of Mexico coast. Specifically, this data release includes information on changes in subaerial land, habitat types, and high-tide flooding for barrier islands and barrier shorelines along the north central Gulf...
Information supporting a cumulative effects assessment of restoration in barrier island and shoreline systems of the north central Gulf of Mexico Information supporting a cumulative effects assessment of restoration in barrier island and shoreline systems of the north central Gulf of Mexico
Information was gathered to support a cumulative effects assessment of restoration in barrier island and shoreline systems of the north central Gulf of Mexico. Information includes: 1) results from two literature searches to help guide the development of a conceptual model of a barrier island and shoreline system and identify drivers and stressors important to that system, and 2) an...
Eastern oyster Dynamic Energy Budget model outputs under current (2014-2020) and projected (2041-2050) temperature and salinity conditions in Texas and Louisiana estuaries and along northern Gulf of Mexico coast Eastern oyster Dynamic Energy Budget model outputs under current (2014-2020) and projected (2041-2050) temperature and salinity conditions in Texas and Louisiana estuaries and along northern Gulf of Mexico coast
Compilation of all outputs from the modeling study presented in Lavaud et al. (2023; IP-156006). In this study a Dynamic Energy Budget (DEB) model for the eastern oyster, Crassostrea virginica, was run under different scenarios of current (2014–2020) and future (2041–2050) temperature and salinity conditions across six key Texas and Louisiana estuaries to derive an aquaculture index...
Bio-engineered oyster reef monitoring, Eloi Bay, Louisiana, 2017-2019 Bio-engineered oyster reef monitoring, Eloi Bay, Louisiana, 2017-2019
This dataset includes annual encrusting organism (oyster, mussel, barnacle) counts and density (ind m-2), and oyster shell height (mm) data for five bio-engineered reef designs: OysterbreakTM (OB), Wave Attenuating Device (WAD), Reef Ball (rows of two, RFB2; rows of three, RFB3), ReefBLK? (RBL), and ShoreJAX (JAX). Data were collected during winter months (i.e., December-January) in 2017...
Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island Seagrass habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island
A barrier island seagrass habitat suitability index (HSI) model was developed for the Alabama barrier island restoration assessment at Dauphin Island. Shoal grass (Halodule wrightii) was selected as the representative species for seagrass community near Dauphin Island waters since H. wrightii is the dominant species (>62%) of seagrass communities in this area due to its rapid growth and...
Oyster habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island Oyster habitat suitability modeling for the Alabama Barrier Island restoration assessment at Dauphin Island
A spatially explicit oyster habitat suitability index (HSI) model was developed for the Alabama barrier island restoration assessment at Dauphin Island. Based on previous oyster habitat suitability studies, seven water quality variables were selected and their relationships with habitat suitability were developed and incorporated into the oyster HSI model for Dauphin Island restoration...
Filter Total Items: 94
Multiscale framework for assessing land cover change on barrier islands from extreme storms and restoration Multiscale framework for assessing land cover change on barrier islands from extreme storms and restoration
Often found along the estuarine-marine interface, barrier islands and mainland coastal zones are shaped by tides, currents, extreme storms, and relative sea-level rise. These systems provide ecosystem services such as storm surge and wave attenuation, erosion protection to inland areas, habitat for fish and wildlife, recreation, and tourism. Given the importance of these ecosystems...
Authors
Nicholas Enwright, P. Soupy Dalyander, Casey M. Stuht, Minoo Han, Margaret L. Palmsten, Theresa M. Davenport, Christopher J. Kingwill, Gregory Steyer, Megan La Peyre
Comparison of two benthic assemblage sampling gears for use on intertidal oyster reefs in Louisiana Comparison of two benthic assemblage sampling gears for use on intertidal oyster reefs in Louisiana
Background Estuarine biodiversity plays a vital role in supporting ecosystem functions yet remains threatened by climate change and anthropogenic activity. Tracking and identifying estuarine biodiversity trends helps management ensure long-term provisions of human and environmental benefits by contributing to the estimation of habitat loss and the monitoring of restoration and...
Authors
Finella M. Campanino, Stephanie K. Archer, Jillian C. Tuptiza, Cassandra N. Glaspie, Megan La Peyre
Vulnerability of gulf ribbed mussels to marsh surface maximum temperatures Vulnerability of gulf ribbed mussels to marsh surface maximum temperatures
Gulf ribbed mussels (Geukensia granosissima) act as ecosystem engineers and reside within the marsh platform of saltmarshes across the northern Gulf of Mexico. With climate models projecting increasing temperatures, and more frequent and extreme heat events, these mussels face increasing temperature-related risks. Marsh surface and subsurface (5-cm depth) temperature was measured...
Authors
Skylar R. Liner, Brian J. Roberts, Nicholas Coxe, Romain Lavaud, Jerome F. La Peyre, Megan La Peyre
Multiple dimensions define thresholds for population resilience of the eastern oyster, Crassostrea virginica Multiple dimensions define thresholds for population resilience of the eastern oyster, Crassostrea virginica
A species' distribution depends on its tolerance to environmental conditions. These conditions are defined by a minimum, maximum, and optimal ranges of single and combined factors. Forays into environmental conditions outside the minimum or maximum tolerance of a species (i.e., thresholds) are predicted to have large effects on a species' population and may help predict population...
Authors
Megan K. La Peyre, H. Wang, Shaye E. Sable, Wei Wu, Bin Li, Devin Comba, Carlos Perez, Melanie Bates, Lauren M. Swam
Cumulative effects assessment of restoration programs: A framework to assess achievement of regional and programmatic goals Cumulative effects assessment of restoration programs: A framework to assess achievement of regional and programmatic goals
Increasing global investments focused on conservation and restoration of natural resources aim to address challenges presented by climate change and biodiversity loss. Many restoration and conservation program assessments examine individual actions, assuming additive effects only, failing to acknowledge or capture potential synergistic or antagonistic effects across a region or program...
Authors
T. M. Davenport, D. A. Comba, P. S. Dalyander, Nicholas Enwright, Margaret L. Palmsten, Gregory Steyer, Megan La Peyre
The use of conceptual ecological models to identify critical data and uncertainties to support numerical modeling: The northern Gulf of Mexico eastern oyster Crassostrea virginica example The use of conceptual ecological models to identify critical data and uncertainties to support numerical modeling: The northern Gulf of Mexico eastern oyster Crassostrea virginica example
Objective Increasing reliance on numerical simulation models to help inform management and restoration choices benefits from careful consideration of critical early steps in model development. Along the northern coast of the Gulf of Mexico, the eastern oyster Crassostrea virginica fulfills important ecological and economic roles. Using the eastern oyster as an example, we draw on several...
Authors
Megan K. La Peyre, Shaye Sable, Danielle A. Marshall, Elise R. Irwin, Chad W. Hanson