Global ETD Search
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Showing 1 to 6 of 6 for “"meromictic lake"”.
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Hydrogen peroxide in the Halls Brook Holding Area, a small meromictic lake
… between May 1997 and June 1998. HBHA is a small meromictic lake that receives groundwater contaminated by an adjacent Superfund site. Inflow and outflow rates and depth profiles of temperature, conductivity, dissolved oxygen, pH, and redox potential were measured at HBHA between May 1997 and June …
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A Microbial Survey of Lake Kivu: Mechanisms of Nitrogen Cycling
… oceans are generally well-oxygenated. Here Lake Kivu, a meromictic lake with deep anoxic layers, is presented as a potential OAE analogue and is used to study a proposed nitrogen cycling mechanism that could explain the characteristic 𝛿¹⁵N excursions associated with OAEs. Biomarkers are …
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Hydroclimate variability in Central America during the Holocene inferred from lacustrine sediments in Lake Izabal, eastern Guatemala
… This project analyzed three sediment cores from Lake Izabal, eastern lowland Guatemala, with the goal of understanding changes in precipitation, lake productivity, and lake water chemistry during the Holocene. Our proxy results indicate that precipitation in the region increased from the early to …
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The hydrological and limnological characterization of two Canadian water catchments sensitive to anthropogenic influences: Crawford Lake, Ontario and Old Crow Flats, Yukon
Crawford Lake, Ontario, and Old Crow Flats, Yukon, provide two unique locations to study interacting hydrological components and the effects of climate and anthropogenically- induced landscape changes on local hydrology, geochemistry, and limnology. Crawford Lake is a small meromictic lake near the …
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Characterizing ancient chemoclines through the use of pigment biomarkers and sedimentary stable isotope signatures
… For this, I turned to the sediments of Lake Kivu, East Africa, a deep meromictic lake that has experienced large scale mixing events and chemocline destabilizations in the past. Within the studied core, sediments deposited coevally with mixing events exhibited distinct pigment, and …
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Metagenomic analysis of the biodiversity and seasonal variation in the meromictic Antarctic lake, Ace Lake
Ace lake is a stratified lake in the Vestfold Hills, Antarctica. The presence of a thick ice-cover for ~11 months of the year and a strong salinity gradient are responsible for its permanent stratification. Taxonomy analyses showed depth-based segregation of its microbial community, including …