Search for dissertations about: "macrophytes"

Showing result 1 - 5 of 32 swedish dissertations containing the word macrophytes.

  1. 1. Spring dynamics in shallow lakes: the role of plankton, fish and macrophytes in a changing climate

    Author : Alice Nicolle; Lunds universitet.; Lund University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; zooplankton; spring; 0 fish; macrophytes; phenology; climate change; shallow lakes;

    Abstract : Shallow lakes such as Lake Krankesjön are characterized by their extended littoral zones, usually covered by submersed and emergent vegetation. In paper 1, I investigated the relationship between turbidity and macrophyte growth (Chara spp. READ MORE

  2. 2. Ecological effects of pesticides in freshwater model ecosystems

    University dissertation from Lina Wendt-Rasch, Ecotoxicology, Ecologybuilding, Sölvegatan 37, Lund, Sweden

    Author : Lina Wendt-Rasch; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; marine biology; aquatic ecology; limnology; Marinbiologi; Hydrobiology; community; zooplankton; algae; herbicide; insecticide; pesticide mixture; macrophytes; cypermethrin; metsulfuron-methyl; risk assessment; pesticides; microcosms; limnologi; akvatisk ekologi;

    Abstract : Popular Abstract in Swedish Bekämpningsmedel och algblomningar - finns det någon koppling? Inom det konventionella jordbruket används idag regelmässigt stora mängder bekämpnings-medel, bara i sverige spreds under år 2001 mer än 1700 ton kemiska bekämpnings-medel på åkrarna. Ett stort problem med användandet av dessa ämnen är risken att de sprids och förorenar den intilliggande naturen. READ MORE

  3. 3. Distribution patterns of macroinvertebrates in vegetated shallow soft-bottom bays of the Baltic Sea

    University dissertation from Plant Ecology

    Author : Joakim Hansen; Stockholms universitet.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; macrophytes; biodiversity; species composition; ecological succession; lagoons; habitat selection; food preference; structural complexity; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology Freshwater ecology; NATURVETENSKAP Biologi Terrestisk; limnisk och marin ekologi Limnisk ekologi; Marine ecology; Marin ekologi;

    Abstract : .... READ MORE

  4. 4. Effects of morphometric isolation and vegetation on the macroinvertebrate community in shallow Baltic Sea land-uplift bays

    University dissertation from Stockholm : Department of Botany, Stockholm university

    Author : Joakim Hansen; Stockholms universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; lagoons; macrofauna; macrophytes; hydrophytes; charophytes; ecological succession; structural complexity; habitat complexity; habitat selection; species composition; biodiversity; stable isotopes; food web; NATURAL SCIENCES Biology Terrestrial; freshwater and marine ecology; NATURVETENSKAP Biologi Terrestrisk; limnisk och marin ekologi; Plant Ecology; växtekologi;

    Abstract : Shallow sheltered Baltic Sea bays are ecologically important habitats that harbour a unique vegetation community and constitute vital reproduction areas for many coastal fish species. Knowledge about the invertebrate community in these bays is, however, limited. READ MORE

  5. 5. Nitrogen removal in treatment wetlands Factors influencing spatial and temporal variations

    University dissertation from Institutionen för fysik, kemi och biologi

    Author : Sofia Kallner Bastviken; Linköpings universitet.; Linköpings universitet.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Wetlands; denitrification; macrophytes; nitrogen; nitrification; model; treatment wetlands; potential denitrification; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : Decreasing the nitrogen transport from land to surrounding seas is a major task throughout the world to limit eutrophication of the coastal areas. Several approaches are currently used, including the establishment of wetlands, to decrease the transport of nitrogen. READ MORE