Search for dissertations about: "Plankton"

Showing result 1 - 5 of 59 swedish dissertations containing the word Plankton.

  1. 1. Ciliates in marine food webs : behaviours structuring plankton communities

    Author : Mona Johansson; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; Infusionsdjur; Plankton;

    Abstract : .... READ MORE

  2. 2. Nutrient limitation and elemental ratios in Baltic Sea plankton

    Author : Jakob Walve; Karin Lochte; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Plankton; Östersjön; Ekosystem i vatten; Systems Ecology; systemekologi;

    Abstract : Phytoplankton growth is frequently limited by the supply of nitrogen (N), phosphorus (P), or sometimes other elements. N2-fixing cyanobacteria are favoured by N limitation, which they may alleviate by adding new N to the ecosystem. READ MORE

  3. 3. The importance of terrestrial carbon in plankton food webs

    Author : Cesar Bolivar Daniel; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; Ecology; lakes; carbon; zooplankton; Spumella elongata; Poterioochromonas malhamensis; flagellates; bacteria; stable isotopes; photochemistry; autochthonous; DOC; allochthonous; plankton; Ekologi; Hydrobiology; marine biology; aquatic ecology; limnology; Marinbiologi; limnologi; akvatisk ekologi;

    Abstract : Allochthonous substances, i.e. produced in terrestrial ecosystems, are known to fuel bacterial production in humic lakes. I observed that allochthonous carbon subsidizes bacteria even at high levels of phytoplankton biomass. READ MORE

  4. 4. Plankton community dynamics in relation to water exchange in the Gullmar Fjord, Sweden

    Author : Odd Lindahl; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Plankton; Gullmar Fjord; Sweden;

    Abstract : .... READ MORE

  5. 5. Uptake Processes of Polychlorinated Biphenyls at the Base of the Pelagic Food Web

    Author : Anna Sobek; Örjan Gustafsson; Derek Muir; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; PCBs; plankton; equilibrium partitioning; uptake; aquatic food web; Environmental chemistry; Miljökemi;

    Abstract : Hydrophobic organic contaminants (HOCs) are persistent, toxic to biota and are known to bioaccumulate in food webs. In this thesis, polychlorinated biphenyls (PCBs) were used as model compounds to study the fate and transport of HOCs in the aquatic environment. READ MORE