Search for dissertations about: "microcosm experiment"

Showing result 1 - 5 of 13 swedish dissertations containing the words microcosm experiment.

  2. 1. Hydrodynamic and Microbiological Modelling of Water Quality in Drinking Water Sources

    Author : Ekaterina Sokolova; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ECO Lab; Bacteroidales; inactivation; microcosm experiment; fate and transport modelling; pathogens; microbial source tracking; MIKE 3; faecal indicators;

    Abstract : Faecal contamination of drinking water sources poses risks for waterborne disease outbreaks. To manage these risks the fate and transport of faecal contamination in a drinking water source need to be understood and quantitatively described. READ MORE

  4. 2. Ecotoxicological assessment by microcosm tests on plankton communities

    Author : Pardis Pirzadeh; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; limnologi; Marinbiologi; aquatic ecology; limnology; Ecology; Ekologi; Hydrobiology; marine biology; musk substances; brominated flame retardants; structural effects; akvatisk ekologi; Environmental chemistry; Miljökemi; mesocosm;

    Abstract : The aim of this thesis is to present a short-term plankton community toxicity test in laboratory microcosms, with which the effect of the test substance on species abundance and composition of the community is evaluated. This laboratory microcosm is an intermediate between single-species tests and outdoor mesocosm tests. READ MORE

  5. 3. Food web dynamics in open and closed systems

    Author : Johan Lövgren; Lennart Persson; Jonathan Chase; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; allochtonous input; cross habitat foraging; donor control; heterogeneity within trophic level; compensation; food web; littoral; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Abstract : This thesis is a summary of enclosure and microcosm experiments that aimed to study the impact of allochtonous subsidies on food web dynamics in a heterogeneous food web. In the enclosure studies, a three trophic level littoral food web was used. READ MORE

  6. 4. Hazard assessment of ciprofloxacin, sulfamethoxazole and triclosan for marine periphyton : Ecotoxicology, Pollution Induced Community Tolerance and Co-Tolerance

    Author : Henrik Johansson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecotoxicology; Antibioitcs; Antimicrobial agents; Ciprofloxacin; Sulfamethoxazole; Triclosan; Community ecotoxicology; Periphyton; Toxicant-induced succession; Pollution-Induced Community Tolerance PICT ;

    Abstract : Antibiotics and personal care products are used in large quantities and commonly detected in various environmental compartments. The two antibiotics, ciprofloxacin and sulfamethoxazole, and the personal care product triclosan are among the most commonly detected compounds in sewage treatment plants and aquatic environments. READ MORE

  7. 5. A song of ice and mud : Interactions of microbes with roots, fauna and carbon in warming permafrost-affected soils

    Author : Sylvain Monteux; Ellen Dorrepaal; Frida Keuper; James T. Weedon; Joshua Schimel; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; microbial communities; permafrost; functional limitations; rhizosphere; SOM decomposition; soil fauna; climate change; carbon dioxide;

    Abstract : Permafrost-affected soils store a large quantity of soil organic matter (SOM) – ca. half of worldwide soil carbon – and currently undergo rapid and severe warming due to climate change. READ MORE