Search for dissertations about: "benthic flux"

Showing result 6 - 10 of 16 swedish dissertations containing the words benthic flux.

  1. 6. Assessing Sub-Lethal Impacts of Petroleum Compounds on Marine Benthic Systems

    University dissertation from Chalmers University of Technology

    Author : Fredrik J. Lindgren; Chalmers tekniska högskola.; Chalmers University of Technology.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Marin ekologi; Marine ecology; Toxikologi; Toxicology; Miljötoxikologi; Environmental toxicology; meiofauna; petroleum; bildanalys; subletala effekter; mikrobiellt samhälle; PAH;

    Abstract : Petroleum and its different distillates commonly end up in the marine environment. One source of these additions is discharges originating from shipping activities; accidents, ship wrecks, operational spills etc. READ MORE

  2. 7. Compositional variability of settling organic particles in non-tidal coastal and shelf enviroments

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Mona Petersson; Uppsala universitet.; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; vertical flux; particulate matter; amino acids; Skagerrak; Limfjorden; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap; naturgeografi; Physical Geography;

    Abstract : The coupling between the composition of settling organic particles and near-bed dynamics was studied in non-tidal coastal and shelf environments. Field investigations were made in Skagerrak and Limfjorden between 1990 and 1995. READ MORE

  3. 8. On benthic fluxes of phosphorus in the Baltic Sea proper – drivers and estimates

    University dissertation from Stockholm : Department of Systems Ecology, Stockholm University

    Author : Nils Ekeroth; Stockholms universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; marin ekologi; Marine Ecology;

    Abstract : This Thesis focuses on the exchange of phosphorus (P) across the sediment–water interface in the Baltic Sea proper, with particular attention to the influence of bioturbating macrofauna and benthic redox conditions. Benthic P fluxes have major influence on P availability in the water column, which in turn regulates growth conditions for dinitrogen fixating cyanobacteria in the Baltic proper. READ MORE

  4. 9. Fate and transport of POPs in the aquatic environment with focus on contaminated sediments

    University dissertation from Umeå : Kemiska institutionen

    Author : Sarah Josefsson; Umeå universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; bioturbation; bioirrigation; bioaccumulation; secondary sources; buried contaminants; sediment remediation; active capping; thin-layer capping; Marenzelleria spp.; Baltic Sea; polychlorinated dibenzo-p-dioxins; polychlorinated dibenzofurans; polychlorinated biphenyls; hexachlorobenzene; octachloro¬styrene; polybrominated diphenyl ethers; PCDD Fs; PCBs; HCB; OCS; PBDEs; water sampling; passive sampling; particulate fraction; freely dissolved; apparently dissolved; colloid; organic carbon; activated carbon; lignin; sediment-to-water flux; spring bloom; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry Environmental chemistry Persistent organic compounds; NATURVETENSKAP Kemi Miljökemi Persistenta organiska föreningar; Environmental Science; miljövetenskap;

    Abstract : Persistent organic pollutants (POPs) are hydrophobic substances that readily sorb to organic matter in particles and colloids instead of being freely dissolved in the water phase. This sorption affects the bio­availability and environmental transport of the POPs. READ MORE

  5. 10. Fate of contaminants in Baltic Sea sediment ecosystems : the role of bioturbation

    University dissertation from Stockholm : Systemekologiska institutionen

    Author : Jenny E Hedman; Stockholms universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Toxicology; Toxikologi; Marine Ecotoxicology; marin ekotoxikologi;

    Abstract : Aquatic sediments are of major importance for the cycling of environmental pollutants, acting as both sinks and secondary sources of contaminants to the ecosystem. Sediment-living organisms can affect the fate and transport of contaminants through activities like feeding and burrowing, collectively called bioturbation. READ MORE