Sökning: "phytoplankton communities"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden phytoplankton communities.

  1. 1. Effekter av salthalter och ljusexponering på zooplanktonpopulationer

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Arielle Lindell; [2022]
    Nyckelord :Zooplankton; salinity; salinization; eutrophication;

    Sammanfattning : Abstract Eutrophication and salinization are both major threats to lake ecosystems and the contaminants can alter the structure of freshwater lake ecosystems, resulting in a loss of biodiversity and ecosystem services. Zooplankton and phytoplankton are key components in all aquatic ecosystems as they maintain a healthy quality of the water and they are also an important part of the food chain. LÄS MER

  3. 2. Spatial patterns of zooplankton communities In Swedish mountain and boreal lakes.

    Kandidat-uppsats,

    Författare :Juan Manuel de la Quintana; [2020]
    Nyckelord :Lake; zooplankton; phytoplankton; DOC and DIN:TP.;

    Sammanfattning :     Zooplankton is crucial for lake ecosystems as it is an important component in most of the food webs of these ecosystems. However, environmental changes have caused reductions in ecosystems nutrients and stoichiometry, which directly affects phytoplankton’s development and quality. LÄS MER

  4. 3. Spatial patterns of zooplankton communities In Swedish mountain and boreal lakes.

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Juan Manuel de la Quintana; [2020]
    Nyckelord :Lake; zooplankton; phytoplankton; DOC and DIN:TP.;

    Sammanfattning :     Zooplankton is crucial for lake ecosystems as it is an important component in most of the food webs of these ecosystems. However, environmental changes have caused reductions in ecosystems nutrients and stoichiometry, which directly affects phytoplankton’s development and quality. LÄS MER

  5. 4. Adaptive Evolution of Resource Use, Phenotypic Diversity, and Productivity of Phytoplankton Communities

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Nils Hellekant; [2019]
    Nyckelord :Adaptive Dynamics; phenotype; phytoplankton; plankton; BEF; Biodiversity; diversity; Spatial modeling; Ecosystem function; Evolution; Diversity;

    Sammanfattning : There is growing concern that the worldwide loss in biodiversity will harm the stability of the ecosystems, and thereby, the carrying capacity and critical ecosystem services the biosphere provides. Phytoplankton (microalgae) in lakes and oceans are arguably the most important primary producers. LÄS MER

  7. 5. Effekten av vägsalt på djurplankton : - ett sötvattensexperiment i oligotrofa och eutroa vatten

    Kandidat-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Rebecka Möller; [2019]
    Nyckelord :Djurplankton; vägsalt; eutrofiering; förorening; näring.;

    Sammanfattning : Pollution or changes in abiotic factors can be stressful if they exceed a species tolerance level, it can for example prevent the species ability to reproduce and disperse. High nutrition- and salt levels may be limiting for species in higher concentrations and affects all species since indirect, interactive and additive effects of high nutrient or salt levels lead to changes in the community structures. LÄS MER