Search for dissertations about: "oceans"
Showing result 6 - 10 of 142 swedish dissertations containing the word oceans.
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6. Blue Oceans with Blue Mussels - Management and planning of mussel farming in coastal ecosystems
Abstract : Eutrophication is one of the largest and most serious global threats to the marine environment. The effect of eutrophication has become increasingly clear during recent time, and major economic and political efforts are being made to tackle its causes and consequences in Sweden and its surrounding seas. READ MORE
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7. Nutrient dynamics in coastal and shelf oceans - sediments as a regulator of eutrophication feedbacks
Abstract : Coastal and shelf systems are under increasing pressure from human activities. Many coastal systems currently suffer from excessive algae growth following increased nutrient input from land, a process called eutrophication. The algae eventually sink to the seafloor, where they are degraded, which consumes oxygen (O2). READ MORE
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8. Environmental conditions governing the distributions of symbiotic and free-living diazotrophic cyanobacteria in two tropical open oceans
Abstract : Di-nitrogen (N2) fixation plays a crucial role in oceanic carbon and nitrogen cycles and is important for marine biogeochemistry on regional and global scales. N2-fixing (diazotrophs) cyanobacteria are considered to contribute the most to marine nitrogen fixation, and thereby fuel the surrounding phytoplankton communities with bioavailable ammonia. READ MORE
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9. Sperm Whales : Social Organization and Global Genetic Structure
Abstract : The social organization of most mammals is characterised by female philopatry and male dispersal. This thesis examines the social organization of sperm whales, Physeter macrocephalus, using a combination of field observations and molecular genetic techniques. READ MORE
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10. On Biogenic Halocarbons in Antarctic Waters
Abstract : Little is known regarding the distribution of naturally produced volatile halogenated organic compounds, halocarbons, in Antarctic waters and the contribution of these waters to the global atmospheric load of halogens. In the atmosphere, halocarbons are degraded by photolysis, and form reactive halogen radicals. READ MORE