Sökning: "Skeletonema marinoi"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden Skeletonema marinoi.

  1. 6. Single cell carbon and nitrogen dynamics in chain forming diatoms, including their resting stage

    Författare :Rickard Stenow; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diatoms; Resting stages; N cycling; Chain formation; Secondary ion mass spectrometry SIMS ;

    Sammanfattning : The oceans are a fundamental part of all life on earth, accounting for more than half of Earth’s oxygen production. The ocean is also key to long term carbon dioxide sequestration. Diatoms are a group of phytoplankton differentiated by their silica shell/frustule and account for ~20% of global primary production. LÄS MER

  3. 7. Genetic structuring in natural populations - the influence of life history strategies and asymmetric migration

    Författare :Lisa Sundqvist; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Population genetics; Asymmetric migration; Genetic differentiation; Resting stages; Gene flow; Phytoplankton; Macroalgae;

    Sammanfattning : In this thesis I investigate aspects of genetic differentiation and factors influencing the structure of populations. This is done with a special focus on life histories and dispersal strategies common in the marine environment. LÄS MER

  4. 8. Physical and biological dispersal barriers in invasive, bloom-forming microalgae

    Författare :Ingrid Sassenhagen; Enhet akvatisk ekologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Dispersal barriers; microalgae; phenotypic differentiation; population genetics; priority effects;

    Sammanfattning : For a long time microorganisms were assumed to have unlimited dispersal due to their small size and high cell numbers. Most microbial species can be transported by water currents, in water droplets by wind and attached to other organisms. LÄS MER

  5. 9. From Sea to Society - Climate Change, Microbial Community Interactions and Assessing Climate Risk on Society

    Författare :Gurpreet Kaur-Kahlon; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Phytoplankton; Bacteria; Climate change; Quorum sensing; Microbial blooms; Vulnerability factors; Arabian Sea; Southwest India;

    Sammanfattning : Unicellular organisms, microalgae and bacteria, less than one millimeter in size make the world go round. Phytoplankton and cyanobacteria, for example, plays an inevitable role contributing 50-85% to the world’s oxygen via photosynthesis. LÄS MER

  7. 10. Carbon and nitrogen fluxes associated to marine and estuarine phytoplankton

    Författare :Malin Olofsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nutrient assimilation Stable isotopes Single cell diversity Phytoplankton;

    Sammanfattning : Globally, mainly nitrogen or phosphorus is limiting the primary production. New nitrogen can enter estuarine ecosystems as nitrate from upwelling events, from river runoff, atmospheric deposition, or by nitrogen fixation. LÄS MER