Hannah E. Chmiel

Diel variation in CO 2 flux is substantial in many lakes

Elvira de Eyto, Robyn L. Smyth, Rachel M. Pilla, Alo Laas et autres

Abstract Lakes play a significant role in the global carbon cycle, acting as sources and sinks of carbon dioxide (CO 2 ). In situ measurements of CO 2 flux (FCO 2 ) from lakes have generally been collected during daylight, despite indications …

ie, us, ee, se, fi, es, no, ch, de, lv, ca, ru, br, gb, lk, nl (code pays fourni par la source)

Temporal and spatial carbon dioxide concentration patterns in a small boreal lake in relation to ice-cover dynamics

Blaize A. Denfeld, Marcus Bo Wallin, Erik Sahlée, Sebastian Sobek et autres

Global carbon dioxide (CO2) emission estimates from inland waters commonly neglect the ice-cover season. To account for CO2 accumulation below ice and consequent emissions into the atmosphere at ice-melt we combined automatically-monitored and manually- sampled spatially-distributed CO2 concentration measurements from a small …

Coefficients in Taylor's law increase with the time scale of water clarity measurements in a global suite of lakes

Max R. Glines, Renata C. H. Amancio, Mikkel René Andersen, Helen Margaret Baulch et autres

Identifying the scaling rules describing ecological patterns across time and space is a central challenge in ecology. Taylor's law of fluctuation scaling, which states that the variance of a population's size or density is proportional to a positive power of the mean …

us, br, ie, ca, de, ch, ru, gb, it, ee, au, nz, cl, dk (code pays fourni par la source)

Author response for "Coefficients in Taylor's law increase with the time scale of water clarity measurements in a global suite of lakes"

Max R. Glines, Renata C. H. Amancio, Mikkel René Andersen, Helen Margaret Baulch et autres

Author response for "Coefficients in Taylor's law increase with the time scale of water clarity measurements in a global suite of lakes"

Max R. Glines, Renata C. H. Amancio, Mikkel René Andersen, Helen Margaret Baulch et autres

Vertical distribution and seasonal dynamics of planktonic cyanobacteria communities in a water column of deep mesotrophic Lake Geneva

Anna Carratalà, Coralie Chappelier, Oliver M. Selmoni, Annie S. Guillaume et autres

Background Temperate subalpine lakes recovering from eutrophication in central Europe are experiencing harmful blooms due to the proliferation of Planktothrix rubescens, a potentially toxic cyanobacteria. To optimize the management of cyanobacteria blooms there is the need to better comprehend the combination of …

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Near‐bed stratification controls bottom hypoxia in ice‐covered alpine lakes

Marie‐Elodie Perga, Camille Minaudo, Tomy Doda, Florent Arthaud et autres

Abstract In ice‐covered lakes, near‐bottom oxygen concentration decreases for most of the wintertime, sometimes down to the point that bottom waters become hypoxic. Studies insofar have reached divergent conclusions on whether climate change limits or reinforces the extent and duration of hypoxia …

ch, es, fr, us (code pays fourni par la source)

Alkalinity contributes at least a third of annual gross primary production in a deep stratified hardwater lake

Pascal Perolo, Nicolas Escoffier, Hannah E. Chmiel, Gaël Many et autres

Abstract In alkaline freshwater systems, the apparent absence of carbon limitation to gross primary production (GPP) at low CO2 concentrations suggests that bicarbonates can support GPP. However, the contribution of bicarbonates to GPP has never been quantified in lakes along the seasons. …

ch (code pays fourni par la source)

Seasonal phytoplankton and geochemical shifts in the subsurface chlorophyll maximum layer of a dimictic ferruginous lake

Elizabeth D. Swanner, Marina Lisa Wüstner, Tania Leung, Jürgen Pust et autres

Abstract Subsurface chlorophyll maxima layers (SCML) are ubiquitous features of stratified aquatic systems. Availability of the micronutrient iron is known to influence marine SCML, but iron has not been explored in detail as a factor in the development of freshwater SCML. This …

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Seasonal phytoplankton and geochemical shifts in the subsurface chlorophyll maximum layer of a dimictic ferruginous lake

Marina Lisa Wuestner, Tania Leung, Juergen Pust, Micah Fatka et autres

Subsurface chlorophyll maxima layers (SCML) are ubiquitous features of stratified aquatic systems. Availability of the micronutrient iron is known to influence marine SCML, but iron has not been explored in detail as a factor in the development of freshwater SCML. This study …

us, de, ch (code pays fourni par la source)

Alkalinity supports gross primary production in a deep hardwater lake

Pascal Perolo, Nicolas Escoffier, Hannah E. Chmiel, Gaël Many et autres

Dissolved inorganic carbon (DIC) is rarely regarded as a limiting factor of gross primary production (GPP) because atmospheric CO2 invasion is expected to compensate for the DIC demands at high GPP levels. However, from May to August, the CO2 concentrations in the …

ch (code pays fourni par la source)

Seasonality modulates wind-driven mixing pathways in a large lake

Bieito Fernández Castro, Damien Bouffard, Cary D. Troy, Hugo N. Ulloa et autres

Abstract Turbulent mixing controls the vertical transfer of heat, gases and nutrients in stratified water bodies, shaping their response to environmental forcing. Nevertheless, due to technical limitations, the redistribution of wind-derived energy fuelling turbulence within stratified lakes has only been mapped over …

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