Search for dissertations about: "Dinoflagellate"

Showing result 1 - 5 of 23 swedish dissertations containing the word Dinoflagellate.

  2. 1. The Greenhouse - Icehouse Transition : a dinoflagellate perspective

    Author : Caroline A. van Mourik; Henk Brinkhuis; Malgorzata Moczydlowska-Vidal; Stockholms universitet; []
    Keywords : Eocene - Oligocene; dinoflagellate cysts; biostratigraphy; paleoecology; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Through the analysis of the stratigraphic and spatial distribution of organic walled dinoflagellate cysts (dinocysts) from climatologically and oceanographically key sites, this project aims to contribute to a better understanding of the Eocene-Oligocene (E/O) environmental changes and their timing. A central issue is to identify the global environmental changes which are responsible for the Eocene cooling and its underlying mechanisms with the focus on the Oligocene isotope-1 (Oi-1) event, thought to mark the onset of major Antarctic glaciation. READ MORE

  4. 2. Grazer-induced responses in marine phytoplankton

    Author : Johanna Bergkvist; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phytoplankton; defence; dinoflagellate; diatoms; paralytic shellfish toxins; polyunsaturated aldehydes; chain formation;

    Abstract : Phytoplankton are the most important primary producers in the world’s oceans, yet little is known of how they avoid the constant threats from the pelagic grazers. From land it is well known that plants defend themselves by having thorns or producing compounds unpalatable to grazers. READ MORE

  5. 3. Environmental requirements of the dinoflagellate Peridinium cinctum fa. westii

    Author : Kåre Lindström; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  6. 4. Influence of Human-induced Environmental Changes on the Physiology of the Harmful Benthic Marine Microalga Ostreopsis ovata

    Author : Nayani K. Vidyarathna; Edna Granéli; Sandra Shumway; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ostreopsis ovata; benthic dinoflagellate; climate change; temperature increase; nutrient enrichment; acidification; physiology; cell growth; cell toxicity; carbohydrate accumulation; Akvatisk ekologi; Aquatic Ecology;

    Abstract : This thesis focus on the influence of human-induced environmental changes on the physiology of Ostreopsis ovata; a toxic, benthic dinoflagellate, which form blooms in tropical and temperate marine waters. O. READ MORE

  7. 5. Dinoflagellate studies of the Upper Maastrichtian and Danian in southern Scandinavia

    Author : Stefan Hultberg; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Three Swedish borehole cores and three Danish outcrop sections, spanning the Upper Maastrichtian and Danian, have been analyzed for dinoflagellates. Variations in the relative abundances of certain dinoflagellate species have been used to establish a quantitatively defined, high-resolution zonation for the Upper Maastrichtian of southern Scandinavia. READ MORE