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Research paper thumbnail of The impact of accelerating land-use change on the N-Cycle of tropical aquatic ecosystems: Current conditions and projected changes

New Perspectives on Nitrogen Cycling in the Temperate and Tropical Americas, 1999

Research paper thumbnail of Overview of Research into the Coastal Effects of the Macondo Blowout from the Coastal Waters Consortium: A GoMRI Consortium

International Oil Spill Conference Proceedings, 2014

The Coastal Waters Consortium (CWC) led by Louisiana Universities Marine Consortium is one of eig... more The Coastal Waters Consortium (CWC) led by Louisiana Universities Marine Consortium is one of eight Gulf of Mexico Research Initiative research consortia. The CWC focuses on: oil transport and fate, chemical evolution and biological degradation, and environmental effects.The following is an overview of a portion of the research conducted within the consortium. The consortium works in a system that was impacted by the Deepwater Horizon oil disaster and additionally impacted by freshwater diversions resulting in changes in salinity, tropical storms, and hurricanes. First, we conducted model simulations assessing oil transport into the Barataria Bay estuary, which indicate that easterly winds and feeding of the anticyclonic gyre in the Louisiana Bight pushed the oil into Barataria Bay. In subtidal sediments adjacent to oiled marshes, marsh detritus from eroding marsh edges eventually became entrained in the sediment column. Biotic impacts vary. The above-ground plant biomass appears he...

Research paper thumbnail of Managing Wetlands

Research paper thumbnail of Distribution and recovery trajectory of Macondo (Mississippi Canyon 252) oil in Louisiana coastal wetlands

Marine Pollution Bulletin, 2014

Research paper thumbnail of Summer hypoxia in the northern Gulf of Mexico and its prediction from 1978 to 1995

Marine Environmental Research, 2005

Research paper thumbnail of Below-ground biomass in healthy and impaired salt marshes

Ecological Research, 2004

Research paper thumbnail of The impact of accelerating land-use change on the N-Cycle of tropical aquatic ecosystems: Current conditions and projected changes

Research paper thumbnail of The impact of accelerating land-use change on the N-Cycle of tropical aquatic ecosystems: Current conditions and projected changes

New Perspectives on Nitrogen Cycling in the Temperate and Tropical Americas, 1999

Research paper thumbnail of Contribution of tropical cyclones to the sediment budget for coastal wetlands in Louisiana, USA

Research paper thumbnail of Hurricane signals in salt marsh sediments: Inorganic sources and soil volume

Limnology and Oceanography, 2007

... R. Eugene Turner', Erick M. Swenson, Charles S. Milan and James M. Lee Coastal Ecolo... more ... R. Eugene Turner', Erick M. Swenson, Charles S. Milan and James M. Lee Coastal Ecology Institute, School of the Coast and ... and to compare and contrast the results with the outcomes anticipated if various hypotheses about the supply of potential source materials are true. ...

Research paper thumbnail of Overview of Research into the Coastal Effects of the Macondo Blowout from the Coastal Waters Consortium: A GoMRI Consortium

Research paper thumbnail of Distribution and recovery trajectory of Macondo (Mississippi Canyon 252) oil in Louisiana coastal wetlands

Marine Pollution Bulletin, 2014

Research paper thumbnail of Response to Comment on "Wetland Sedimentation from Hurricanes Katrina and Rita

Research paper thumbnail of Wetland Sedimentation from Hurricanes Katrina and Rita

Science, 2006

More than 131 x 10(6) metric tons (MT) of inorganic sediments accumulated in coastal wetlands whe... more More than 131 x 10(6) metric tons (MT) of inorganic sediments accumulated in coastal wetlands when Hurricanes Katrina and Rita crossed the Louisiana coast in 2005, plus another 281 x 10(6) MT when accumulation was prorated for open water area. The annualized combined amount of inorganic sediments per hurricane equals (i) 12% of the Mississippi River's suspended load, (ii) 5.5 times the inorganic load delivered by overbank flooding before flood protection levees were constructed, and (iii) 227 times the amount introduced by a river diversion built for wetland restoration. The accumulation from hurricanes is sufficient to account for all the inorganic sediments in healthy saltmarsh wetlands.

Research paper thumbnail of Landscape-Scale Analysis of Wetland Sediment Deposition from Four Tropical Cyclone Events

Research paper thumbnail of Summer hypoxia in the northern Gulf of Mexico and its prediction from 1978 to 1995

Marine Environmental Research, 2005

Research paper thumbnail of Watershed land use and river engineering drive wetland formation and loss in the Mississippi River birdfoot delta

Limnology and Oceanography, 2012

Research paper thumbnail of Salt marshes and eutrophication: An unsustainable outcome

Limnology and Oceanography, 2009

Research paper thumbnail of Additions and Corrections - β-Adrenergic Blocking Agents. V. 1-Amino-3-(substituted phenoxy)-2-propanols

Journal of Medicinal Chemistry, 1970

Research paper thumbnail of Recent volumetric changes in salt marsh soils

Estuarine, Coastal and Shelf Science, 2006

Salt marsh sediment volume decreases from organic decomposition, compaction of solids, and de-wat... more Salt marsh sediment volume decreases from organic decomposition, compaction of solids, and de-watering, and each of these processes may change with age. Variability in the vertical accretion rate within the upper 2m was determined by assembling results from ...

Research paper thumbnail of The impact of accelerating land-use change on the N-Cycle of tropical aquatic ecosystems: Current conditions and projected changes

New Perspectives on Nitrogen Cycling in the Temperate and Tropical Americas, 1999

Research paper thumbnail of Overview of Research into the Coastal Effects of the Macondo Blowout from the Coastal Waters Consortium: A GoMRI Consortium

International Oil Spill Conference Proceedings, 2014

The Coastal Waters Consortium (CWC) led by Louisiana Universities Marine Consortium is one of eig... more The Coastal Waters Consortium (CWC) led by Louisiana Universities Marine Consortium is one of eight Gulf of Mexico Research Initiative research consortia. The CWC focuses on: oil transport and fate, chemical evolution and biological degradation, and environmental effects.The following is an overview of a portion of the research conducted within the consortium. The consortium works in a system that was impacted by the Deepwater Horizon oil disaster and additionally impacted by freshwater diversions resulting in changes in salinity, tropical storms, and hurricanes. First, we conducted model simulations assessing oil transport into the Barataria Bay estuary, which indicate that easterly winds and feeding of the anticyclonic gyre in the Louisiana Bight pushed the oil into Barataria Bay. In subtidal sediments adjacent to oiled marshes, marsh detritus from eroding marsh edges eventually became entrained in the sediment column. Biotic impacts vary. The above-ground plant biomass appears he...

Research paper thumbnail of Managing Wetlands

Research paper thumbnail of Distribution and recovery trajectory of Macondo (Mississippi Canyon 252) oil in Louisiana coastal wetlands

Marine Pollution Bulletin, 2014

Research paper thumbnail of Summer hypoxia in the northern Gulf of Mexico and its prediction from 1978 to 1995

Marine Environmental Research, 2005

Research paper thumbnail of Below-ground biomass in healthy and impaired salt marshes

Ecological Research, 2004

Research paper thumbnail of The impact of accelerating land-use change on the N-Cycle of tropical aquatic ecosystems: Current conditions and projected changes

Research paper thumbnail of The impact of accelerating land-use change on the N-Cycle of tropical aquatic ecosystems: Current conditions and projected changes

New Perspectives on Nitrogen Cycling in the Temperate and Tropical Americas, 1999

Research paper thumbnail of Contribution of tropical cyclones to the sediment budget for coastal wetlands in Louisiana, USA

Research paper thumbnail of Hurricane signals in salt marsh sediments: Inorganic sources and soil volume

Limnology and Oceanography, 2007

... R. Eugene Turner', Erick M. Swenson, Charles S. Milan and James M. Lee Coastal Ecolo... more ... R. Eugene Turner', Erick M. Swenson, Charles S. Milan and James M. Lee Coastal Ecology Institute, School of the Coast and ... and to compare and contrast the results with the outcomes anticipated if various hypotheses about the supply of potential source materials are true. ...

Research paper thumbnail of Overview of Research into the Coastal Effects of the Macondo Blowout from the Coastal Waters Consortium: A GoMRI Consortium

Research paper thumbnail of Distribution and recovery trajectory of Macondo (Mississippi Canyon 252) oil in Louisiana coastal wetlands

Marine Pollution Bulletin, 2014

Research paper thumbnail of Response to Comment on "Wetland Sedimentation from Hurricanes Katrina and Rita

Research paper thumbnail of Wetland Sedimentation from Hurricanes Katrina and Rita

Science, 2006

More than 131 x 10(6) metric tons (MT) of inorganic sediments accumulated in coastal wetlands whe... more More than 131 x 10(6) metric tons (MT) of inorganic sediments accumulated in coastal wetlands when Hurricanes Katrina and Rita crossed the Louisiana coast in 2005, plus another 281 x 10(6) MT when accumulation was prorated for open water area. The annualized combined amount of inorganic sediments per hurricane equals (i) 12% of the Mississippi River's suspended load, (ii) 5.5 times the inorganic load delivered by overbank flooding before flood protection levees were constructed, and (iii) 227 times the amount introduced by a river diversion built for wetland restoration. The accumulation from hurricanes is sufficient to account for all the inorganic sediments in healthy saltmarsh wetlands.

Research paper thumbnail of Landscape-Scale Analysis of Wetland Sediment Deposition from Four Tropical Cyclone Events

Research paper thumbnail of Summer hypoxia in the northern Gulf of Mexico and its prediction from 1978 to 1995

Marine Environmental Research, 2005

Research paper thumbnail of Watershed land use and river engineering drive wetland formation and loss in the Mississippi River birdfoot delta

Limnology and Oceanography, 2012

Research paper thumbnail of Salt marshes and eutrophication: An unsustainable outcome

Limnology and Oceanography, 2009

Research paper thumbnail of Additions and Corrections - β-Adrenergic Blocking Agents. V. 1-Amino-3-(substituted phenoxy)-2-propanols

Journal of Medicinal Chemistry, 1970

Research paper thumbnail of Recent volumetric changes in salt marsh soils

Estuarine, Coastal and Shelf Science, 2006

Salt marsh sediment volume decreases from organic decomposition, compaction of solids, and de-wat... more Salt marsh sediment volume decreases from organic decomposition, compaction of solids, and de-watering, and each of these processes may change with age. Variability in the vertical accretion rate within the upper 2m was determined by assembling results from ...

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