Concept

Estran

Publications associées (40)

A benthic foraminifera species respond to anoxia with a strong metabolic shift suggesting a state of dormancy

Anders Meibom, Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

Low-oxygenation events are more and more frequent and strong on continental shelves and in coastal areas where renewal of bottom waters is slow. Among the meiofauna living in such environments, foraminifera are among the most tolerant to the lack of oxygen ...

2016

The influence of bottom boundary layer hydrodynamics on sediment focusing in a contaminated bay

Damien Bouffard

Understanding the dynamics and fate of particle bound contaminants is important for mitigating potential environmental, economic and health impacts linked to their presence. Vidy Bay, Lake Geneva (Switzerland), is contaminated due to the outfall and overfl ...

Springer Heidelberg2016

Identification of above-zone pressure perturbations caused by leakage from those induced by deformation

Victor Vilarrasa Riano

Pressure changes in the above zone, i.e., the overlying aquifer of an injection zone separated by a sealing caprock, are usually attributed to leakage through wells. However, pressure changes can be induced geomechanically due to rock deformation without a ...

Springer2016

Carbon integration and transfer by the photosynthetic symbiotic dinoflagellates of the planktonic foraminifer Orbulina universa observed by TEM-nanoSIMS techniques

Anders Meibom, Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

The planktonic foraminifera Orbulina universa is living in the photic zone of marine water columns and it possesses photosynthetic microalgae symbionts in its cytoplasm (dinoflagellates). The transfer of carbon compounds from the symbiotic microalgae to th ...

2015

Unstable Pore-Water Flow in Intertidal Wetlands

David Andrew Barry

Salt marshes are important intertidal wetlands strongly influenced by interactions between surface water and groundwater. Bordered by coastal water, the marsh system undergoes cycles of inundation and exposure driven by the tide. This leads to dynamic, com ...

2014

Use of silicate minerals for pH control during reductive dechlorination of chloroethenes in batch cultures of different microbial consortia

David Andrew Barry, Christof Holliger, Alessandro Brovelli, Elsa Marina Lacroix

In chloroethene-contaminated sites undergoing in situ bioremediation, groundwater acidification is a frequent problem in the source zone, and buffering strategies have to be implemented to maintain the pH in the neutral range. An alternative to conventiona ...

American Society for Microbiology2014

Impacts of hydrodynamics and benthic communities on phytoplankton distributions in a large, dreissenid-colonized lake (Lake Simcoe, Ontario, Canada)

Damien Bouffard

We quantified the vertical and horizontal variation of chlorophyll a (Chl-a) to test how benthic filter feeders (dreissenid mussels), rooted macrophytes, and hydrodynamics influence phytoplankton distributions in a large lake (Lake Simcoe, Canada). Water c ...

2013

Influence of beach grain size and bed slope on nearshore hydro- and morpho-dynamics

David Andrew Barry, Roham Bakhtyar

Two major parameters that determine the beach type are sediment grain size and beach slope. Intermediate beaches normally have steep slopes and are associated with coarse-grained sands and narrow surf zones, while dissipative beaches generally have mild sl ...

2012

Rehabilitation of concrete bridges using Ultra-High Performance Fibre Reinforced Concrete (UHPFRC)

Eugen Brühwiler

Rehabilitation of deteriorated concrete bridges is a heavy burden from the socio-economic viewpoint. Novel concepts for the rehabilitation of concrete structures must be developed. Ultra-High Performance Fibre Reinforced Concretes (UHPFRC) provide the stru ...

CRC Press/Balkema2012

Tidally driven multiscale pore water flow in a creek-marsh system

David Andrew Barry

Intertidal wetlands are complex hydrological systems characterized by strong, dynamic interactions between coastal surface water and groundwater, driven particularly by tides. We simulated such interactions with a focus on three-dimensional, variably satur ...

American Geophysical Union2011

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