Search for dissertations about: "By Fjord"
Showing result 11 - 15 of 30 swedish dissertations containing the words By Fjord.
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11. Coastal signals of environmental changes: foraminifera as benthic monitors
Abstract : Climate changes, tightly linked to anthropogenic activities, are significantly altering environments and ecosystems globally, such as by increasing marine and coastal deoxygenation or occurrences of extreme weather events. The significance of paleoenvironmental and -climate reconstructions, as well as monitoring of current conditions, for unravelling baseline natural variation, today’s changes and potential future impacts, has been recognised by the Intergovernmental Panel on Climate Change (IPCC) reports. READ MORE
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12. Air-sea exchange of O2 and CO2 : Processes controlling the transfer efficiency
Abstract : World oceans cover more than 70% of the earth surface and constitutes a major sink of atmospheric CO2. Two of the most important gases in the marine carbon cycling are O2 and CO2 and hence accurate descriptions of the air-sea gas exchange of these gases are crucial. READ MORE
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13. Ecological succession of benthic macrofauna following disturbance : Effects of contaminants and in situ sediment remediation
Abstract : More than 70% of the Earth is covered by water, and most of the sea floor consists of soft sediments, such as mud, clay and sand. Thus, soft sediments form one of the most important habitats on Earth, with a high diversity of organisms. READ MORE
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14. Carcinogenic polycyclic aromatic hydrocarbons : role of human glutathione transferases in conjugate formation and DNA protection
Abstract : Polycyclic aromatic hydrocarbons (PAHs) are widespread mutagenic and carcinogenic environmental pollutants, which requires metabolic activation to electrophilic intermediates and subsequent covalent binding to critical targets in DNA to elicit their biological activity. Bay- and fjord region diol epoxides (DEs) have been identified as the ultimate mutagenic and carcinogenic metabolites of PAHs. READ MORE
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15. Molecular mechanisms involved in prokaryotic cycling of labile dissolved organic matter in the sea
Abstract : Roughly half of the global primary production originates from microscopic phytoplankton in marine ecosystems, converting carbon dioxide into organic matter. This organic matter pool consists of a myriad of compounds that fuel heterotrophic bacterioplankton. READ MORE