Sökning: "Meiofauna"

Visar resultat 1 - 5 av 12 avhandlingar innehållade ordet Meiofauna.

  1. 1. Trophic ecology of meiofauna : Response to sedimentation of phytoplankton blooms in the Baltic Sea

    Författare :Francisco J.A. Nascimento; Ragnar Elmgren; Richard Warwick; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Meiofauna; Cyanobacteria; competition; facilitation; ecosystems processes; Marine ecology; Marin ekologi; marin ekologi; Marine Ecology;

    Sammanfattning : Marine soft sediments are the second largest habitat on Earth. How animal communities in this habitat are structured is a central issue in marine ecology. Food is an important limiting factor for many benthic populations, and settling organic matter from phytoplankton blooms is of vital importance to them. LÄS MER

  3. 2. The benthic meiofauna of three coastal areas : structure, seasonal dynamics and response to environmental perturbations

    Författare :Bertil Widbom; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Marine biology; Benthos; Meiofauna;

    Sammanfattning : .... LÄS MER

  4. 3. Control factors of the marine nitrogen cycle : The role of meiofauna, macrofauna, oxygen and aggregates

    Författare :Stefano Bonaglia; Patrick Crill; Volker Brüchert; Per Hall; Chritoph Humborg; Risgaard-Petersen Nils; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Nitrogen cycle; denitrification; DNRA; anammox; anoxia; hypoxia; eutrophication; meiofauna; macrofauna; aggregates; cyanobacteria; Baltic Sea; geokemi; Geochemistry;

    Sammanfattning : The ocean is the most extended biome present on our planet. Recent decades have seen a dramatic increase in the number and gravity of threats impacting the ocean, including discharge of pollutants, cultural eutrophication and spread of alien species. LÄS MER

  5. 4. Assessing Sub-Lethal Impacts of Petroleum Compounds on Marine Benthic Systems

    Författare :Fredrik Lindgren; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; NATURVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; MEDICAL AND HEALTH SCIENCES; subletala effekter; mikrobiellt samhälle; meiofauna; petroleum; PAH; bildanalys;

    Sammanfattning : 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. LÄS MER

  7. 5. Dispersal in free-living, marine, benthic nematodes : passive or active processes?

    Författare :Jörgen Ullberg; Emil Ólafsson; John Lambshead; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Nematod; dispersial; water column; choice; algal mats; disturbance; meiofauna; community; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : Meiofauna, and especially marine nematodes are common in sediments around the world. Despite very wide ranging distributions in many nematode species, little is presently known about their dispersal mechanisms shaping these patterns. Rafting, and perhaps ballast water transport has been suggested as viable means for nematode long-range transport. LÄS MER