Megan La Peyre, PhD (Former Employee)
Science and Products
Filter Total Items: 97
Understanding nekton use of estuarine habitats in the northern Gulf of Mexico: Guidebook for natural resource managers and restoration practitioners Understanding nekton use of estuarine habitats in the northern Gulf of Mexico: Guidebook for natural resource managers and restoration practitioners
Without a comprehensive understanding of nekton use of key habitats across locations, natural resource managers and restoration practitioners in the northern Gulf of Mexico region lack a key tool to assist in their efforts to design, implement, and monitor effective coastal restoration and protection efforts in the decades to come. To address this need, Abt helped conduct a systematic...
Authors
T. A. Hollweg, M. C. Christman, K. Sauby, J. Cebrian, Megan La Peyre
Estuarine submerged aquatic vegetation habitat provides organic carbon storage across a shifting landscape Estuarine submerged aquatic vegetation habitat provides organic carbon storage across a shifting landscape
Submerged aquatic vegetation (SAV) thrives across the estuarine salinity gradient providing valuable ecosystem services. Within the saline portion of estuaries, seagrass areas are frequently cited as hotspots for their role in capturing and retaining organic carbon (Corg). Non-seagrass SAV, located in the fresh to brackish estuarine areas, may also retain significant soil Corg, yet their...
Authors
E. R. Hillman, V. H. Rivera-Monroy, A. J. Nyman, Megan K. La Peyre
Eastern oyster clearance and respiration rates in response to acute and chronic exposure to suspended sediment loads Eastern oyster clearance and respiration rates in response to acute and chronic exposure to suspended sediment loads
Coastal Louisiana supports some of the most productive areas for the eastern oyster, Crassostrea virginica. Changing conditions from restoration and climate change alter freshwater and sediment inflows into critical estuarine areas affecting water quality, including salinity and concentrations of suspended sediment. This study examined the effects of acute (1 h) and chronic (8 weeks)...
Authors
Megan K. La Peyre, S. K. Bernasconi, R. Lavaud, S. M. Casas, J. F. La Peyre
Salinity and water clarity dictate seasonal variability in coastal submerged aquatic vegetation in subtropical estuarine environments Salinity and water clarity dictate seasonal variability in coastal submerged aquatic vegetation in subtropical estuarine environments
Spatial and temporal variability characterize submerged aquatic vegetation (SAV) assemblages, but understanding the complex interactions of environmental drivers of SAV assemblages remains elusive. We documented SAV composition and biomass across a salinity gradient in a coastal estuary over 12 mo. Ten macrophyte species were identified. The dominant species, Ceratophyllum demersum and
Authors
Eva R. Hillmann, Kristin DeMarco, Megan K. La Peyre
Vulnerability of resource-users in Louisiana’s oyster fishery to environmental hazards Vulnerability of resource-users in Louisiana’s oyster fishery to environmental hazards
Knowledge of vulnerability provides the foundation for developing actions that minimize impacts on people while maximizing the sustainability of ecosystem goods and services. As a result, it is becoming increasingly important to determine how resource-dependent people are vulnerable to environmental hazards. This is particularly true in coastal Louisiana where the current era of rapid...
Authors
A. T. Humphries, L. Josephs, Megan K. LaPeyre, S. A. Hall, R.D. Beech
Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis
Oyster reefs provide habitat for numerous fish and decapod crustacean species that mediate ecosystem functioning and support vibrant fisheries. Recent focus on the restoration of eastern oyster (Crassostrea virginica) reefs stems from this role as a critical ecosystem engineer. Within the shallow estuaries of the northern Gulf of Mexico (nGoM), the eastern oyster is the dominant reef...
Authors
Megan K. LaPeyre, Danielle Aguilar Marshall, Lindsay Miller, Austin T. Humphries
Differential effects of temperature and salinity on growth and mortality of oysters (Crassostrea virginica) in Barataria Bay and Breton Sound, Louisiana Differential effects of temperature and salinity on growth and mortality of oysters (Crassostrea virginica) in Barataria Bay and Breton Sound, Louisiana
Temperature and salinity and their interaction exert a major control on the life cycle of the eastern oyster (Crassostrea virginica), affecting reproduction, development, growth, and mortality. Quantifying specific temperature and salinity relationships on oyster growth and mortality has however proven difficult, with data suggesting potentially region-specific responses. Legacy and...
Authors
T. Sehlinger, M.R. Lowe, Megan K. LaPeyre, T.M. Soniat
Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis
Oyster reefs provide habitat for numerous fish and decapod crustacean species that mediate ecosystem functioning and support vibrant fisheries. Recent focus on the restoration of eastern oyster (Crassostrea virginica) reefs stems from this role as a critical ecosystem engineer. Within the shallow estuaries of the northern Gulf of Mexico (nGoM), the eastern oyster is the dominant reef...
Authors
Megan K. LaPeyre, D. A. Marshall, L. S. Miller, A. T. Humphries
The application of oyster reefs in shoreline protection: Are we over‐engineering for an ecosystem engineer? The application of oyster reefs in shoreline protection: Are we over‐engineering for an ecosystem engineer?
Oyster reef living shorelines have been proposed as an effective alternative to traditional coastal defence structures (e.g. bulkheads, breakwaters), with the benefit that they may keep pace with sea‐level rise and provide co‐benefits, such as habitat provision. However, there remains uncertainty about the effectiveness of shoreline protection provided by oyster reefs, which limits their...
Authors
R. L. Morris, D. M. Bilkovic, M. K. Boswell, D. Bushek, J. Cebrian, Josh Goff, K. M. Kibler, Megan K. LaPeyre, G. McClenachan, J. A. Moody, P. E. Sacks, J.P. Shinn, E. L. Sparks, N. A. Temple, L. J. Walters, B. M. Webb, S. E. Swearer
Effects of salinity and light on growth and interspecific interactions between Myriophyllum spicatum L. and Ruppia maritima L. Effects of salinity and light on growth and interspecific interactions between Myriophyllum spicatum L. and Ruppia maritima L.
Submerged macrophyte habitats provide significant benefits to estuarine systems. In southeast Louisiana, Myriophyllum spicatum L. (milfoil) and Ruppia maritima L. (widgeongrass) are dominant species existing across fresh to brackish areas. Though frequently co-occurring across the range of salinity and light conditions, their individual responses to changing environmental conditions from
Authors
E. R. Hillman, Megan La Peyre
Measuring carbon and nitrogen bioassimilation, burial, and denitrification contributions of oyster reefs in Gulf coast estuaries Measuring carbon and nitrogen bioassimilation, burial, and denitrification contributions of oyster reefs in Gulf coast estuaries
The eastern oyster (Crassostrea virginica) and the reefs they create provide significant ecosystem services. This study measured their possible role in nutrient mitigation through bioassimilation, burial, and oyster-mediated sediment denitrification in near-shore shallow water ( 1 m water depth) oyster reefs in Louisiana. Nitrogen (N) and carbon (C) in shell and tissue differed by oyster
Authors
P. Westbrook, L. Heffner, Megan K. La Peyre
Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model
Determining the spatial distribution of coastal foundation species is essential to accurately determine restoration goals, predict the ecological effects of climate change, and develop habitat management strategies. Mapping the distribution of submerged aquatic vegetation (SAV) species assemblages, which provide important habitat resource and ecological services in Louisiana, has been...
Authors
Kristin DeMarco, Brady Couvillion, Stuart Brown, Megan La Peyre
Science and Products
Filter Total Items: 97
Understanding nekton use of estuarine habitats in the northern Gulf of Mexico: Guidebook for natural resource managers and restoration practitioners Understanding nekton use of estuarine habitats in the northern Gulf of Mexico: Guidebook for natural resource managers and restoration practitioners
Without a comprehensive understanding of nekton use of key habitats across locations, natural resource managers and restoration practitioners in the northern Gulf of Mexico region lack a key tool to assist in their efforts to design, implement, and monitor effective coastal restoration and protection efforts in the decades to come. To address this need, Abt helped conduct a systematic...
Authors
T. A. Hollweg, M. C. Christman, K. Sauby, J. Cebrian, Megan La Peyre
Estuarine submerged aquatic vegetation habitat provides organic carbon storage across a shifting landscape Estuarine submerged aquatic vegetation habitat provides organic carbon storage across a shifting landscape
Submerged aquatic vegetation (SAV) thrives across the estuarine salinity gradient providing valuable ecosystem services. Within the saline portion of estuaries, seagrass areas are frequently cited as hotspots for their role in capturing and retaining organic carbon (Corg). Non-seagrass SAV, located in the fresh to brackish estuarine areas, may also retain significant soil Corg, yet their...
Authors
E. R. Hillman, V. H. Rivera-Monroy, A. J. Nyman, Megan K. La Peyre
Eastern oyster clearance and respiration rates in response to acute and chronic exposure to suspended sediment loads Eastern oyster clearance and respiration rates in response to acute and chronic exposure to suspended sediment loads
Coastal Louisiana supports some of the most productive areas for the eastern oyster, Crassostrea virginica. Changing conditions from restoration and climate change alter freshwater and sediment inflows into critical estuarine areas affecting water quality, including salinity and concentrations of suspended sediment. This study examined the effects of acute (1 h) and chronic (8 weeks)...
Authors
Megan K. La Peyre, S. K. Bernasconi, R. Lavaud, S. M. Casas, J. F. La Peyre
Salinity and water clarity dictate seasonal variability in coastal submerged aquatic vegetation in subtropical estuarine environments Salinity and water clarity dictate seasonal variability in coastal submerged aquatic vegetation in subtropical estuarine environments
Spatial and temporal variability characterize submerged aquatic vegetation (SAV) assemblages, but understanding the complex interactions of environmental drivers of SAV assemblages remains elusive. We documented SAV composition and biomass across a salinity gradient in a coastal estuary over 12 mo. Ten macrophyte species were identified. The dominant species, Ceratophyllum demersum and
Authors
Eva R. Hillmann, Kristin DeMarco, Megan K. La Peyre
Vulnerability of resource-users in Louisiana’s oyster fishery to environmental hazards Vulnerability of resource-users in Louisiana’s oyster fishery to environmental hazards
Knowledge of vulnerability provides the foundation for developing actions that minimize impacts on people while maximizing the sustainability of ecosystem goods and services. As a result, it is becoming increasingly important to determine how resource-dependent people are vulnerable to environmental hazards. This is particularly true in coastal Louisiana where the current era of rapid...
Authors
A. T. Humphries, L. Josephs, Megan K. LaPeyre, S. A. Hall, R.D. Beech
Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis
Oyster reefs provide habitat for numerous fish and decapod crustacean species that mediate ecosystem functioning and support vibrant fisheries. Recent focus on the restoration of eastern oyster (Crassostrea virginica) reefs stems from this role as a critical ecosystem engineer. Within the shallow estuaries of the northern Gulf of Mexico (nGoM), the eastern oyster is the dominant reef...
Authors
Megan K. LaPeyre, Danielle Aguilar Marshall, Lindsay Miller, Austin T. Humphries
Differential effects of temperature and salinity on growth and mortality of oysters (Crassostrea virginica) in Barataria Bay and Breton Sound, Louisiana Differential effects of temperature and salinity on growth and mortality of oysters (Crassostrea virginica) in Barataria Bay and Breton Sound, Louisiana
Temperature and salinity and their interaction exert a major control on the life cycle of the eastern oyster (Crassostrea virginica), affecting reproduction, development, growth, and mortality. Quantifying specific temperature and salinity relationships on oyster growth and mortality has however proven difficult, with data suggesting potentially region-specific responses. Legacy and...
Authors
T. Sehlinger, M.R. Lowe, Megan K. LaPeyre, T.M. Soniat
Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis Oyster reefs in northern Gulf of Mexico estuaries harbor diverse fish and decapod crustacean assemblages: A meta-synthesis
Oyster reefs provide habitat for numerous fish and decapod crustacean species that mediate ecosystem functioning and support vibrant fisheries. Recent focus on the restoration of eastern oyster (Crassostrea virginica) reefs stems from this role as a critical ecosystem engineer. Within the shallow estuaries of the northern Gulf of Mexico (nGoM), the eastern oyster is the dominant reef...
Authors
Megan K. LaPeyre, D. A. Marshall, L. S. Miller, A. T. Humphries
The application of oyster reefs in shoreline protection: Are we over‐engineering for an ecosystem engineer? The application of oyster reefs in shoreline protection: Are we over‐engineering for an ecosystem engineer?
Oyster reef living shorelines have been proposed as an effective alternative to traditional coastal defence structures (e.g. bulkheads, breakwaters), with the benefit that they may keep pace with sea‐level rise and provide co‐benefits, such as habitat provision. However, there remains uncertainty about the effectiveness of shoreline protection provided by oyster reefs, which limits their...
Authors
R. L. Morris, D. M. Bilkovic, M. K. Boswell, D. Bushek, J. Cebrian, Josh Goff, K. M. Kibler, Megan K. LaPeyre, G. McClenachan, J. A. Moody, P. E. Sacks, J.P. Shinn, E. L. Sparks, N. A. Temple, L. J. Walters, B. M. Webb, S. E. Swearer
Effects of salinity and light on growth and interspecific interactions between Myriophyllum spicatum L. and Ruppia maritima L. Effects of salinity and light on growth and interspecific interactions between Myriophyllum spicatum L. and Ruppia maritima L.
Submerged macrophyte habitats provide significant benefits to estuarine systems. In southeast Louisiana, Myriophyllum spicatum L. (milfoil) and Ruppia maritima L. (widgeongrass) are dominant species existing across fresh to brackish areas. Though frequently co-occurring across the range of salinity and light conditions, their individual responses to changing environmental conditions from
Authors
E. R. Hillman, Megan La Peyre
Measuring carbon and nitrogen bioassimilation, burial, and denitrification contributions of oyster reefs in Gulf coast estuaries Measuring carbon and nitrogen bioassimilation, burial, and denitrification contributions of oyster reefs in Gulf coast estuaries
The eastern oyster (Crassostrea virginica) and the reefs they create provide significant ecosystem services. This study measured their possible role in nutrient mitigation through bioassimilation, burial, and oyster-mediated sediment denitrification in near-shore shallow water ( 1 m water depth) oyster reefs in Louisiana. Nitrogen (N) and carbon (C) in shell and tissue differed by oyster
Authors
P. Westbrook, L. Heffner, Megan K. La Peyre
Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model Submerged aquatic vegetation mapping in coastal Louisiana through development of a spatial likelihood occurrence (SLOO) model
Determining the spatial distribution of coastal foundation species is essential to accurately determine restoration goals, predict the ecological effects of climate change, and develop habitat management strategies. Mapping the distribution of submerged aquatic vegetation (SAV) species assemblages, which provide important habitat resource and ecological services in Louisiana, has been...
Authors
Kristin DeMarco, Brady Couvillion, Stuart Brown, Megan La Peyre