Sökning: "resting stage"

Visar resultat 1 - 5 av 28 avhandlingar innehållade orden resting stage.

  1. 1. Recruitment from resting stages among bloom-forming cyanobacteria

    Författare :Annika Ståhl-Delbanco; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; aquatic ecology; limnology; Marinbiologi; limnologi; akvatisk ekologi; marine biology; Hydrobiology; resting stage; Cyanobacteria; recruitment; algal bloom;

    Sammanfattning : Cyanobacteria are known to form heavy blooms in eutrophicated freshwaters and also form resting stages, associated with the sediments, during harsh growth conditions. These resting stages can serve as inoculum for pelagic populations and function as a potential source for bloom formations. LÄS MER

  3. 2. 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

  4. 3. Survivors of the Sea: Investigating the genomics and survival strategies of the diatom Skeletonema marinoi

    Författare :Matthew I. M. Pinder; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diatoms; Skeletonema marinoi; Resting stages; Bioinformatics; Genomics; Gene expression; Metabarcoding;

    Sammanfattning : Diatoms are an ecologically important group of phytoplankton, responsible for around 20% of global primary production. One of the features contributing to their success is their ability to form resting stages, a response to adverse conditions in which they enter a dormant state and sink to the sediment. LÄS MER

  5. 4. 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

  7. 5. The role of resting cysts in the survival and succession of freshwater dinoflagellates

    Författare :Karin Rengefors; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Biologi; Biology; Biologi; limnologi; Limnology;

    Sammanfattning : Phytoplankton have adapted to survive in the variable and heterogeneous environment that is characteristic of lakes in temperate regions. One strategy for survival during periods unfavorable for growth is to form resting propagules. LÄS MER