Search for dissertations about: "växtplankton"

Showing result 1 - 5 of 21 swedish dissertations containing the word växtplankton.

  2. 1. Thiamin (vitamin B1) in the aquatic food web

    Author : Emil Fridolfsson; Samuel Hylander; Michael T. Brett; Linnéuniversitetet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; phytoplankton; zooplankton; thiamin; transfer; food web dynamics; micronutrient; vitamin; Baltic Sea; community composition; M74; salmon; B1; växtplankton; djurplankton; tiamin; överföring; födoväv; mikronäringsämne; vitamin; Östersjön; B1; lax; Ecology; Ekologi;

    Abstract : Thiamin (vitamin B1) is required for several life-sustaining processes in most organisms and cells, e.g. in the conversion of food to energy. It also serves as an antioxidant and is important for proper nerve signaling. READ MORE

  4. 2. Phytoplankton of Baltic environmental gradients : observations on potentially toxic species

    Author : Susanna Hajdu; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Växtplankton; Östersjön;

    Abstract : .... READ MORE

  5. 3. A multivariate approach to the analysis of phytoplankton pigments

    Author : Ludvig Moberg; Olav Kvalheim; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Växtplankton; Analytical Chemistry; analytisk kemi;

    Abstract : Photosynthetic pigments are routinely determined in investigations of marine and freshwater environments, chlorophyll is used as an estimator of phytoplankton biomass. Photosynthetic pigments are also widely used to characterise phytoplankton taxonomic composition. READ MORE

  6. 4. Effects of toxin-producing phytoplankton on copepods: feeding, reproduction and implications to the fate of toxins

    Author : Betina Kozlowsky-Suzuki; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ecology; Ekologi; GSH transferase; oocyte development; fate of toxins; toxin accumulation; toxic phytoplankton; copepods;

    Abstract : Phytoplankton growth and loss rates are governed by several factors and in many cases, when growth control fails, algal blooms are established. Such blooms can be formed by different phytoplankton species and some of them have harmful impacts on marine ecosystems. READ MORE

  7. 5. Effects of dissolved humic matter on phytoplankton

    Author : Jessica von Einem; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phytoplankton; PAR; DOC; Water colour; production;

    Abstract : Water colour is currently increasing in thousands of lakes in the northern hemisphere due to an increased input of terrestrial dissolved organic carbon (DOC), and more specifically coloured disscolved humic matter (DHM). I studied how water colour affects the light climate in the epilimnion and, as a consequence, phytoplankton biomass, species composition and production in lakes in southern Sweden. READ MORE