Megan La Peyre, PhD (Former Employee)
Science and Products
Filter Total Items: 94
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
A multiscale natural community and species-level vulnerability assessment of the Gulf Coast, USA A multiscale natural community and species-level vulnerability assessment of the Gulf Coast, USA
Vulnerability assessments combine quantitative and qualitative evaluations of the exposure, sensitivity, and adaptive capacity of species or natural communities to current and future threats. When combined with the economic, ecological or evolutionary value of the species, vulnerability assessments quantify the relative risk to regional species and natural communities and can enable...
Authors
Joshua S. Reece, Amanda Watson, Patricia (Soupy) Dalyander, C. Edwards, Laura Geselbracht, Megan K. LaPeyre, Blair Tirpak, John M. Tirpak, Mark Woodrey
Combined effects of temperature and salinity on the physiology of two geographically-distant eastern oyster populations Combined effects of temperature and salinity on the physiology of two geographically-distant eastern oyster populations
Understanding why a species occupies a certain geographic range and predicting how they will be affected by climate change require characterizing physiological traits in geographically-distant populations. The objective of this study was to perform a direct comparison of two eastern oyster (Crassostrea virginica) populations that occupy contrasting temperature and salinity habitats, New...
Authors
S. M. Casas, R. Filgueira, R. Lavaud, L. A. Comeau, Megan La Peyre, J. F. La Peyre
Quantifying salinity and season effects on eastern oyster clearance and oxygen consumption rates Quantifying salinity and season effects on eastern oyster clearance and oxygen consumption rates
There are few data on Crassostrea virginica physiological rates across the range of salinities and temperatures to which they are regularly exposed, and this limits the applicability of growth and production models using these data. The objectives of this study were to quantify, in winter (17 °C) and summer (27 °C), the clearance and oxygen consumption rates of C. virginica from...
Authors
S.M. Casas, Romain Lavaud, Megan K. LaPeyre, L. A. Comeau, R. Filgueira, Jerome F. LaPeyre
Science and Products
Filter Total Items: 94
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
A multiscale natural community and species-level vulnerability assessment of the Gulf Coast, USA A multiscale natural community and species-level vulnerability assessment of the Gulf Coast, USA
Vulnerability assessments combine quantitative and qualitative evaluations of the exposure, sensitivity, and adaptive capacity of species or natural communities to current and future threats. When combined with the economic, ecological or evolutionary value of the species, vulnerability assessments quantify the relative risk to regional species and natural communities and can enable...
Authors
Joshua S. Reece, Amanda Watson, Patricia (Soupy) Dalyander, C. Edwards, Laura Geselbracht, Megan K. LaPeyre, Blair Tirpak, John M. Tirpak, Mark Woodrey
Combined effects of temperature and salinity on the physiology of two geographically-distant eastern oyster populations Combined effects of temperature and salinity on the physiology of two geographically-distant eastern oyster populations
Understanding why a species occupies a certain geographic range and predicting how they will be affected by climate change require characterizing physiological traits in geographically-distant populations. The objective of this study was to perform a direct comparison of two eastern oyster (Crassostrea virginica) populations that occupy contrasting temperature and salinity habitats, New...
Authors
S. M. Casas, R. Filgueira, R. Lavaud, L. A. Comeau, Megan La Peyre, J. F. La Peyre
Quantifying salinity and season effects on eastern oyster clearance and oxygen consumption rates Quantifying salinity and season effects on eastern oyster clearance and oxygen consumption rates
There are few data on Crassostrea virginica physiological rates across the range of salinities and temperatures to which they are regularly exposed, and this limits the applicability of growth and production models using these data. The objectives of this study were to quantify, in winter (17 °C) and summer (27 °C), the clearance and oxygen consumption rates of C. virginica from...
Authors
S.M. Casas, Romain Lavaud, Megan K. LaPeyre, L. A. Comeau, R. Filgueira, Jerome F. LaPeyre