Sökning: "zooplankton"

Visar resultat 11 - 15 av 53 uppsatser innehållade ordet zooplankton.

  1. 11. How brownification and eutrophication effects a drinking water source – with Lake Bolmen, Sweden, in focus

    Master-uppsats, Lunds universitet/Miljövetenskaplig utbildning; Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Stina Stomberg; [2022]
    Nyckelord :brownification; eutrophication effects; drinking water; phytoplankton; Lake Bolmen; mesocosm; Earth and Environmental Sciences;

    Sammanfattning : The ongoing human impact in form of deforestation, urbanization and intense agriculture is affecting the natural hydrology and our freshwater lakes negatively. Both eutrophication and brownification has seen to increase with the ongoing environmental change which can potentially have large impact on our freshwater ecosystems. LÄS MER

  3. 12. Characterization of PLA Nanoplastics, and Their Effects on Daphnia magna

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Melinda Rydberg; [2022]
    Nyckelord :Polylactic acid; Polylactide; PLA; Nanoplastic; Daphnia magna; Toxicity; Polymer Technology; Chemistry; Earth and Environmental Sciences;

    Sammanfattning : As plastic pollution in aquatic environments keeps happening it has become more and more important to learn more about nanoparticles. Bio-based and biologically degradable plastics, such as polylactic acid (PLA), are gaining popularity and it is therefore important to determine whether they break down into nanoplastics or not. LÄS MER

  4. 13. Hantering av mikroplaster i industriprocesser : En studie vid Sandvik Coromants skärtillverkning i Gimo

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Emil Fredricsson; Oscar Axelsson; Anna Winstedt; Anastasia Novikova; Disa Barkefors; [2021]
    Nyckelord :Mikroplast; industri; filter; vatten; utsläpp; vattenrening; miljö; plast;

    Sammanfattning : I denna studie undersöks om Sandvik Coromants skärtillverkningsprocess i Gimo släpper ut mikroplaster och i sådana fall hur detta kan förhindras. Källan som utreds är de plastskärbärare som skären är placerade på under delar av tillverkningsprocessen. LÄS MER

  5. 14. Efficiency of diatom and flagellate-based marine food webs.

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

    Författare :Yasmina Hamladji; [2021]
    Nyckelord :phytoplankton; flagellate; diatoms; ciliates food web efficiency; fungi;

    Sammanfattning : Aquatic microbial food webs are in general size structured. Phytoplankton, which constitute the base of the food web, are grazed by protozoa and mesozooplankton, which in turn are consumed by planktivorous fish. Food web efficiency (FWE) is a measure of how efficiently energy is transported up the food web. LÄS MER

  7. 15. The effects of eutrophication and browning on prey availability and performance of the three-spined stickleback (Gasterosteus aculeatus)

    Master-uppsats, SLU/Dept. Of Aquatic Resources

    Författare :Olivia Bell; [2021]
    Nyckelord :Baltic Sea; benthic habitats; body growth; climate change; coastal areas; diet; fish; stickleback; zooplankton;

    Sammanfattning : Shallow coastal areas often have high productivity and diversity, in part due to the high availability of light and nutrients. At the same time, they are exposed to multiple environmental pressures, such as browning and eutrophication. LÄS MER