Search for dissertations about: "Skeletonema"

Showing result 1 - 5 of 13 swedish dissertations containing the word Skeletonema.

  2. 1. Phenotypic and Genotypic responses in the planktonic diatom Skeletonema marinoi - Effects of Natural Processes and Anthropogenic Stressors

    Author : Susanna Gross; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diatoms; genotype; phenotype; resting cell; eutrophication; spring bloom; diversity; grazing; adaptation; phytoplankton; microalgae; Skeletonema;

    Abstract : Diatoms are one of the most diverse and abundant phytoplankton taxa and are highly important as primary producers, accounting for nearly half of the marine primary production and constituting the base in the marine food web. Despite their high dispersal potential they are genetically diverse and display genetically structured populations. READ MORE

  4. 2. Copepods in Skeletonema-dominated food webs : Toxicity and nutritional quality as factors controlling copepod-diatom interactions

    Author : Roswati Md Amin; Ulf Båmstedt; Sigrun Jónasdóttir; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Copepod-diatom interaction; toxicity; nutritional quality; Skeletonema;

    Abstract : My thesis focuses on copepod-diatom interactions, specifically on the effects of food quality and toxicity on copepod feeding, reproductive success and behavior but as a frame, also includes a quantitative evaluation of copepod carbon requirements compared to other trophic plankton groups. My aim was to evaluate the function of copepods in diatom-dominated spring blooms. READ MORE

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

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

    Abstract : 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. READ MORE

  6. 4. Evolutionary and Ecological Effects of Metal Pollution on Coastal Diatoms

    Author : Björn Andersson; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Phytoplankton; Diatoms; Skeletonema marinoi; Toxicity; Heavy metals; Copper; Evolution; Baltic Sea; Population genomics; Physiology; Ecology; Metabarcoding; Sedimentology; Resting stages; Dose-response relationships;

    Abstract : Oceans are changing rapidly in response to human activities, such as toxic pollution, eutrophication, and climate change. Diatoms are major primary producers in the oceans with short generation times, flexible reproductive strategies, and high standing genetic diversity. READ MORE

  7. 5. Bloom dynamics and population genetics of marine phytoplankton - Community, species and population aspects

    Author : Karolina Härnström; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phytoplankton; dynamics; Skeletonema marinoi; population genetics; resting stages;

    Abstract : Phytoplankton are the most important primary producers in the world’s oceans and coastal waters, accounting for nearly half of the global net primary production. Although they are such important organisms, little is known about the ecology and dynamics of phytoplankton. READ MORE