Megan La Peyre, PhD (Former Employee)
Science and Products
Filter Total Items: 97
DNA virome composition of two sympatric wild felids, bobcat (Lynx rufus) and puma (Puma concolor) in Sonora, Mexico DNA virome composition of two sympatric wild felids, bobcat (Lynx rufus) and puma (Puma concolor) in Sonora, Mexico
With viruses often having devastating effects on wildlife population fitness and wild mammals serving as pathogen reservoirs for potentially zoonotic diseases, determining the viral diversity present in wild mammals is both a conservation and One Health priority. Additionally, transmission from more abundant hosts could increase the extinction risk of threatened sympatric species. We...
Authors
Natalie Payne, Leigh Combrink, Simona Kraberger, Rafaela S. Fontenele, Kara Schmidlin, Ivonne Cassaigne, Megan K. La Peyre, Arvind Varsani, Koenraad Van Doorslaer
Differential hypoxia tolerance of eastern oysters from the northern Gulf of Mexico at elevated temperature Differential hypoxia tolerance of eastern oysters from the northern Gulf of Mexico at elevated temperature
Increasing prevalence of hypoxia in shallow waters of U.S. Gulf of Mexico (GoM) estuaries can pose a serious threat to eastern oysters (Crassostrea virginica). Their tolerance to hypoxia, however, is not well characterized, especially at elevated temperatures (>30 °C) typical of GoM estuaries in summer. Moreover, it is unknown whether differences in hypoxia tolerance exist between GoM...
Authors
Nicholas Coxe, Sandra M. Casas, Danielle A. Marshall, Megan K. La Peyre, Morgan W. Kelly, Jerome F. La Peyre
Are we falling short on restoring oysters at a regional scale? Are we falling short on restoring oysters at a regional scale?
Across coastal areas of the northern Gulf of Mexico, the Deepwater Horizon oil spill resulted in significant ecological injury, and over 8 billion USD directed to restoration activities. Oyster restoration projects were implemented with regional goals of restoring oyster abundance, spawning stock, and population resilience. Measuring regional or large-scale ecosystem restoration outcomes
Authors
Megan K. La Peyre, Danielle Aguilar Marshall, Sarah Catherine Leblanc Buie, Ann Hijuelos, Gregory Steyer
Long-term assessments are critical to determining persistence and shoreline protection from oyster reef nature-based coastal defenses Long-term assessments are critical to determining persistence and shoreline protection from oyster reef nature-based coastal defenses
Nature-based coastal defense using bivalve reefs provides a potentially self-sustaining approach for regions facing high coastal land loss, relative sea level rise and increasing frequency and intensity of storms. Success of such nature-based coastal defense depends on the reef-building species' life history, habitat requirements, and ability to thrive through short-term and longer-term...
Authors
Megan K. La Peyre, Sarah Catherine Leblanc Buie, Ryann Rossi, Brian J. Roberts
Local populations of eastern oyster from Louisiana differ in low salinity tolerance Local populations of eastern oyster from Louisiana differ in low salinity tolerance
Eastern oysters Crassostrea virginica support a critical commercial industry and provide many ecosystem services to coastal estuaries yet are currently threatened by changing estuarine conditions. A changing climate and the effects of river and coastal management are altering freshwater inflows into productive oyster areas, causing more frequent and extreme salinity exposure. Although...
Authors
Lauren Swam, Megan K. La Peyre, Brian Callam, Jerome F. La Peyre
Defining oyster resource zones across coastal Louisiana for restoration and aquaculture Defining oyster resource zones across coastal Louisiana for restoration and aquaculture
Eastern oysters (Crassostrea virginica) are a critical ecological and commercial resource in the northern Gulf of Mexico facing changing environmental conditions from river management and climate change. In Louisiana, USA, development of restored reefs, and off-bottom aquaculture would benefit from the identification of locations supportive of sustainable oyster populations (i.e...
Authors
Lauren M. Swam, Brady Couvillion, Brian Callam, Jerome F. La Peyre, Megan K. La Peyre
Nekton community dynamics within active and inactive deltas in a major river estuary: Potential implications for altered hydrology regimes Nekton community dynamics within active and inactive deltas in a major river estuary: Potential implications for altered hydrology regimes
High fisheries production within estuaries is associated with coastal upwelling, tidal mixing, and land-based runoff facing increasing impacts from climate and human activities. Active river deltas receive large riverine inflows compared to inactive river deltas, providing contrasting estuaries to compare impacts of river inflow on estuarine nekton. We quantified nekton assemblages and...
Authors
Caleb B. Taylor, John Andrew Nyman, Megan K. La Peyre
Five years of monitoring a bio-engineered living shoreline: Comparison of oyster population development by reef technology. Five years of monitoring a bio-engineered living shoreline: Comparison of oyster population development by reef technology.
The Living Shoreline Demonstration Project (PO-148) used five bio-engineered reef technologies (Reef Balls in two configurations; Figure 1) acting as breakwaters to protect vulnerable shorelines. While the primary goal is to attenuate wave energy, the sustainability and success of these products as “living” shorelines are based on their ability to enhance oyster habitat, enabling the...
Authors
Lauren M. Swam, Danielle Aguilar Marshall, Megan K. La Peyre
Effects of sample gear on estuarine nekton assemblage assessments and food web model simulations Effects of sample gear on estuarine nekton assemblage assessments and food web model simulations
Long-term fisheries-independent sampling data inform population status and trends of species-specific biomass and are often used to drive biomass-based food web models such as the Comprehensive Aquatic Systems Model (CASM). Indicators such as total biomass and mean trophic level derived from these data and from CASM outputs inform management and facilitate assessments of on-going and...
Authors
Megan K. La Peyre, S. Sable, C. M. Taylor, Katherine S. Watkins, E. Kiskaddon, M. Baustian
Defining aquatic habitat zones across northern Gulf of Mexico estuarine gradients through submerged aquatic vegetation species assemblage and biomass data Defining aquatic habitat zones across northern Gulf of Mexico estuarine gradients through submerged aquatic vegetation species assemblage and biomass data
Submerged aquatic vegetation (SAV) creates highly productive habitats in coastal areas, providing support for many important species of fish and wildlife. Despite the importance and documented loss of SAV across fresh to marine habitats globally, we lack consistent baseline data on estuarine SAV resources, particularly in the northern Gulf of Mexico (NGOM) estuaries. To understand SAV...
Authors
K. E. DeMarco, E. R. Hillmann, J. A. Nyman, Brady Couvillion, Megan K. La Peyre
Louisiana Trustee Implementation Group monitoring and adaptive management strategy (LA TIG MAM Strategy) Louisiana Trustee Implementation Group monitoring and adaptive management strategy (LA TIG MAM Strategy)
The purpose of the Louisiana Trustee Implementation Group (LA TIG) Monitoring and Adaptive Management (MAM) Strategy is to outline an approach for the LA TIG to prioritize MAM activities in Louisiana for effective and efficient evaluation of the restoration of resources injured by the Deepwater Horizon (DWH) oil spill. Working from the Restoration Goals and Restoration Approaches...
Divergence in salinity tolerance of northern Gulf of Mexico eastern oysters under field and laboratory exposure Divergence in salinity tolerance of northern Gulf of Mexico eastern oysters under field and laboratory exposure
The eastern oyster, Crassostrea virginica, is a foundation species within US Gulf of Mexico (GoM) estuaries that has experienced substantial population declines. As changes from management and climate are expected to continue to impact estuarine salinity, understanding how local oyster populations might respond and identifying populations with adaptations to more extreme changes in...
Authors
D.A. Marshall, S.M. Casas, W.C. Walton, F.S. Rikard, T.A. Palmer, N. Breaux, Megan K. La Peyre, J.B. Pollack, M.A. Kelly, J.F. LaPeyre
Science and Products
Filter Total Items: 97
DNA virome composition of two sympatric wild felids, bobcat (Lynx rufus) and puma (Puma concolor) in Sonora, Mexico DNA virome composition of two sympatric wild felids, bobcat (Lynx rufus) and puma (Puma concolor) in Sonora, Mexico
With viruses often having devastating effects on wildlife population fitness and wild mammals serving as pathogen reservoirs for potentially zoonotic diseases, determining the viral diversity present in wild mammals is both a conservation and One Health priority. Additionally, transmission from more abundant hosts could increase the extinction risk of threatened sympatric species. We...
Authors
Natalie Payne, Leigh Combrink, Simona Kraberger, Rafaela S. Fontenele, Kara Schmidlin, Ivonne Cassaigne, Megan K. La Peyre, Arvind Varsani, Koenraad Van Doorslaer
Differential hypoxia tolerance of eastern oysters from the northern Gulf of Mexico at elevated temperature Differential hypoxia tolerance of eastern oysters from the northern Gulf of Mexico at elevated temperature
Increasing prevalence of hypoxia in shallow waters of U.S. Gulf of Mexico (GoM) estuaries can pose a serious threat to eastern oysters (Crassostrea virginica). Their tolerance to hypoxia, however, is not well characterized, especially at elevated temperatures (>30 °C) typical of GoM estuaries in summer. Moreover, it is unknown whether differences in hypoxia tolerance exist between GoM...
Authors
Nicholas Coxe, Sandra M. Casas, Danielle A. Marshall, Megan K. La Peyre, Morgan W. Kelly, Jerome F. La Peyre
Are we falling short on restoring oysters at a regional scale? Are we falling short on restoring oysters at a regional scale?
Across coastal areas of the northern Gulf of Mexico, the Deepwater Horizon oil spill resulted in significant ecological injury, and over 8 billion USD directed to restoration activities. Oyster restoration projects were implemented with regional goals of restoring oyster abundance, spawning stock, and population resilience. Measuring regional or large-scale ecosystem restoration outcomes
Authors
Megan K. La Peyre, Danielle Aguilar Marshall, Sarah Catherine Leblanc Buie, Ann Hijuelos, Gregory Steyer
Long-term assessments are critical to determining persistence and shoreline protection from oyster reef nature-based coastal defenses Long-term assessments are critical to determining persistence and shoreline protection from oyster reef nature-based coastal defenses
Nature-based coastal defense using bivalve reefs provides a potentially self-sustaining approach for regions facing high coastal land loss, relative sea level rise and increasing frequency and intensity of storms. Success of such nature-based coastal defense depends on the reef-building species' life history, habitat requirements, and ability to thrive through short-term and longer-term...
Authors
Megan K. La Peyre, Sarah Catherine Leblanc Buie, Ryann Rossi, Brian J. Roberts
Local populations of eastern oyster from Louisiana differ in low salinity tolerance Local populations of eastern oyster from Louisiana differ in low salinity tolerance
Eastern oysters Crassostrea virginica support a critical commercial industry and provide many ecosystem services to coastal estuaries yet are currently threatened by changing estuarine conditions. A changing climate and the effects of river and coastal management are altering freshwater inflows into productive oyster areas, causing more frequent and extreme salinity exposure. Although...
Authors
Lauren Swam, Megan K. La Peyre, Brian Callam, Jerome F. La Peyre
Defining oyster resource zones across coastal Louisiana for restoration and aquaculture Defining oyster resource zones across coastal Louisiana for restoration and aquaculture
Eastern oysters (Crassostrea virginica) are a critical ecological and commercial resource in the northern Gulf of Mexico facing changing environmental conditions from river management and climate change. In Louisiana, USA, development of restored reefs, and off-bottom aquaculture would benefit from the identification of locations supportive of sustainable oyster populations (i.e...
Authors
Lauren M. Swam, Brady Couvillion, Brian Callam, Jerome F. La Peyre, Megan K. La Peyre
Nekton community dynamics within active and inactive deltas in a major river estuary: Potential implications for altered hydrology regimes Nekton community dynamics within active and inactive deltas in a major river estuary: Potential implications for altered hydrology regimes
High fisheries production within estuaries is associated with coastal upwelling, tidal mixing, and land-based runoff facing increasing impacts from climate and human activities. Active river deltas receive large riverine inflows compared to inactive river deltas, providing contrasting estuaries to compare impacts of river inflow on estuarine nekton. We quantified nekton assemblages and...
Authors
Caleb B. Taylor, John Andrew Nyman, Megan K. La Peyre
Five years of monitoring a bio-engineered living shoreline: Comparison of oyster population development by reef technology. Five years of monitoring a bio-engineered living shoreline: Comparison of oyster population development by reef technology.
The Living Shoreline Demonstration Project (PO-148) used five bio-engineered reef technologies (Reef Balls in two configurations; Figure 1) acting as breakwaters to protect vulnerable shorelines. While the primary goal is to attenuate wave energy, the sustainability and success of these products as “living” shorelines are based on their ability to enhance oyster habitat, enabling the...
Authors
Lauren M. Swam, Danielle Aguilar Marshall, Megan K. La Peyre
Effects of sample gear on estuarine nekton assemblage assessments and food web model simulations Effects of sample gear on estuarine nekton assemblage assessments and food web model simulations
Long-term fisheries-independent sampling data inform population status and trends of species-specific biomass and are often used to drive biomass-based food web models such as the Comprehensive Aquatic Systems Model (CASM). Indicators such as total biomass and mean trophic level derived from these data and from CASM outputs inform management and facilitate assessments of on-going and...
Authors
Megan K. La Peyre, S. Sable, C. M. Taylor, Katherine S. Watkins, E. Kiskaddon, M. Baustian
Defining aquatic habitat zones across northern Gulf of Mexico estuarine gradients through submerged aquatic vegetation species assemblage and biomass data Defining aquatic habitat zones across northern Gulf of Mexico estuarine gradients through submerged aquatic vegetation species assemblage and biomass data
Submerged aquatic vegetation (SAV) creates highly productive habitats in coastal areas, providing support for many important species of fish and wildlife. Despite the importance and documented loss of SAV across fresh to marine habitats globally, we lack consistent baseline data on estuarine SAV resources, particularly in the northern Gulf of Mexico (NGOM) estuaries. To understand SAV...
Authors
K. E. DeMarco, E. R. Hillmann, J. A. Nyman, Brady Couvillion, Megan K. La Peyre
Louisiana Trustee Implementation Group monitoring and adaptive management strategy (LA TIG MAM Strategy) Louisiana Trustee Implementation Group monitoring and adaptive management strategy (LA TIG MAM Strategy)
The purpose of the Louisiana Trustee Implementation Group (LA TIG) Monitoring and Adaptive Management (MAM) Strategy is to outline an approach for the LA TIG to prioritize MAM activities in Louisiana for effective and efficient evaluation of the restoration of resources injured by the Deepwater Horizon (DWH) oil spill. Working from the Restoration Goals and Restoration Approaches...
Divergence in salinity tolerance of northern Gulf of Mexico eastern oysters under field and laboratory exposure Divergence in salinity tolerance of northern Gulf of Mexico eastern oysters under field and laboratory exposure
The eastern oyster, Crassostrea virginica, is a foundation species within US Gulf of Mexico (GoM) estuaries that has experienced substantial population declines. As changes from management and climate are expected to continue to impact estuarine salinity, understanding how local oyster populations might respond and identifying populations with adaptations to more extreme changes in...
Authors
D.A. Marshall, S.M. Casas, W.C. Walton, F.S. Rikard, T.A. Palmer, N. Breaux, Megan K. La Peyre, J.B. Pollack, M.A. Kelly, J.F. LaPeyre