Publications related to Water column

Calibration and deployment of POCIS and Chemcatcher for the monitoring of explosives on lake-bottom sediments

Luiz Felippe De Alencastro, Nicolas Estoppey

Between 1920 and 1967, approximatively 8000 tons of ammunition waste was dumped into some Swiss lakes. Previous studies based on grab sampling revealed small traces of cyclotetramethylenetetranitramine (HMX), cyclotrimethylenetrinitramine (RDX) and pentaer ...

2016

Comparative carbon cycle dynamics of the present and last interglacial

Jérôme Chappellaz, Daniele Romanini

Simultaneous measurement of C2H6 and CH4 concentrations, and of the δ13C-CH4 isotope ratio is demonstrated using a cavity-enhanced absorption spectroscopy technique in the mid-IR region. The spectrometer is compact and has been designed for field operation ...

Copernicus GmbH2016

Shifts in diversity and function of lake bacterial communities upon glacier retreat

Hannes Markus Peter

Global climate change is causing a wastage of glaciers and threatening biodiversity in glacier-fed ecosystems. The high turbidity typically found in those ecosystems, which is caused by inorganic particles and result of the erosive activity of glaciers is ...

Nature Publishing Group2016

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

Effect of TiO2 Nanoparticles and UV Radiation on Extracellular Enzyme Activity of Intact Heterotrophic Biofilms

Kristin Schirmer, Laura Sigg, Hannah Inka Schug

When introduced into the aquatic environment, TiO2 NP are likely to settle from the water column, which results in increased exposure of benthic communities. Here, we show that the activity of two extracellular enzymes of intact heterotrophic biofilms, bet ...

Amer Chemical Soc2014

Nutrient cycling in Lake Kivu

Alfred Johny Wüest, Martin Schmid

This chapter summarizes the knowledge on mixing and transport processes in Lake Kivu. Seasonal mixing, which varies in intensity from year to year, influences the top ∼65 m. Below, the lake is permanently stratified, with density increasing stepwise from ∼ ...

Springer2012

Stratification, mixing and transport processes in Lake Kivu

Alfred Johny Wüest, Martin Schmid

This chapter summarizes the knowledge on mixing and transport processes in Lake Kivu. Seasonal mixing, which varies in intensity from year to year, influences the top â¼65 m. Below, the lake is permanently stratified, with density increasing stepwise from ...

Springer2012

Sediment accumulation and carbon, nitrogen, and phosphorus deposition in the large tropical reservoir Lake Kariba (Zambia/Zimbabwe)

Alfred Johny Wüest, Bernhard Wehrli

Large dams affect the aquatic continuum from land to ocean by accumulating particles and nutrients in their reservoirs. We examined sediment cores to quantify sediment, organic carbon (OC), nitrogen (N), and phosphorous (P) accumulation, and to examine his ...

Amer Geophysical Union2011

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Water column

Application of delta O-18, delta C-13(DIC), and major ions to evaluate micropollutant sources in the Bay of Vidy, Lake Geneva

Calibration and deployment of POCIS and Chemcatcher for the monitoring of explosives on lake-bottom sediments

Comparative carbon cycle dynamics of the present and last interglacial

Shifts in diversity and function of lake bacterial communities upon glacier retreat

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

Effect of TiO2 Nanoparticles and UV Radiation on Extracellular Enzyme Activity of Intact Heterotrophic Biofilms

Nutrient cycling in Lake Kivu

Stratification, mixing and transport processes in Lake Kivu

Distribution of denitrifying bacterial communities in the stratified water column and sediment-water interface in two freshwater lakes and the Baltic Sea

Sediment accumulation and carbon, nitrogen, and phosphorus deposition in the large tropical reservoir Lake Kariba (Zambia/Zimbabwe)

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Chat with Graph Search

Comparative carbon cycle dynamics of the present and last interglacial

Effect of TiO2 Nanoparticles and UV Radiation on Extracellular Enzyme Activity of Intact Heterotrophic Biofilms

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

Nutrient cycling in Lake Kivu

Calibration and deployment of POCIS and Chemcatcher for the monitoring of explosives on lake-bottom sediments

Stratification, mixing and transport processes in Lake Kivu

Distribution of denitrifying bacterial communities in the stratified water column and sediment-water interface in two freshwater lakes and the Baltic Sea

Shifts in diversity and function of lake bacterial communities upon glacier retreat

Application of delta O-18, delta C-13(DIC), and major ions to evaluate micropollutant sources in the Bay of Vidy, Lake Geneva

Sediment accumulation and carbon, nitrogen, and phosphorus deposition in the large tropical reservoir Lake Kariba (Zambia/Zimbabwe)