Sökning: "fish barrier"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden fish barrier.

  1. 1. The next-generation of aquatic effect-based monitoring? : A critical review about the application,challenges and barriers with omics in field

    Magister-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Sara Sahlin; [2019]
    Nyckelord :Omics; transcriptomics; proteomics; metabolomics; water monitoring; effect-based;

    Sammanfattning : Traditional water monitoring encounter limitations due to the large number of contaminants present in our waters possible giving raise to mixture effects. This thesis aimed to investigate how the emerging omics approaches (transcriptomics, proteomics and metabolomics) can be used as an effect-based monitoring approach to assess and predict adverse effects in the freshwater environment. LÄS MER

  2. 2. Bubbles guide migrating smolts around hydropower plants

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

    Författare :Shona MacArthur; [2019]
    Nyckelord :Atlantic salmon; migration; bubble barrier; hydropower plant; predation;

    Sammanfattning : The development of hydroelectric power production and the damming of water courses that ensues causes a threat to the migration patterns of Atlantic salmon (Salmo salar), by altering their habitat and compromising river connectivity. Because the species’ survival heavily depends on the completion of their migration between rivers and oceans, the design of guidance structures that promote successful passages around dams is a critical goal. LÄS MER

  3. 3. Isolation of nanoplastics in fish from the North Aegean sea

    Master-uppsats, Lunds universitet/Tillämpad biokemi; Lunds universitet/Teoretisk kemi

    Författare :Isabella Gimskog; [2019]
    Nyckelord :nanoplastics; microplastics; Mediterranean; fish; isolation; applied biochemistry; tillämpad biokemi; Chemistry; Biology and Life Sciences; Earth and Environmental Sciences; Technology and Engineering;

    Sammanfattning : The breakdown of plastics in our oceans is one of our times biggest challenges. What happens when these plastics are broken down into pieces too small to see is still a mystery. Nanoplastics is a relatively new area of research and much more studies need to be done before we can get a perspective of how big the problem is. LÄS MER

  4. 4. Den lekmogna Siljansöringens rörelsemönster i Österdalälven : - Betydelsen av ursprung och kön

    Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Författare :Åsa Tjäder; [2019]
    Nyckelord :Siljan trout; migration; movement patterns; spawning migration; trout; hatchery; wild; males; females; Siljansöring; migration; rörelsemönster; lekvandring; öring; odlad; vild; hanar; honor; Salmo trutta;

    Sammanfattning : I Österdalälven har mängden Siljansöring (Salmo trutta) minskat avsevärt på grund av kraftverk som stoppar fiskens vandringsvägar. För att lyckas med att stärka beståndet krävs en fördjupad kunskap kring fiskens beteendemönster, bland annat rörelser i samband med uppströms lekvandring. LÄS MER

  5. 5. Bubble curtains with vertical tubes : A way to deter fish from hydro power intakes

    Master-uppsats, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Gustav Molin; [2019]
    Nyckelord :Bubble curtain hydro power intakes fish salmon eel barrier screen deter; vattenkraft bubbelridå ridå bubblor lax ål fisk;

    Sammanfattning : This project was performed on assigment of Vattenfall R&D in Älvkarleby. The project was a first step in evaluating whether bubble curtains with vertical tubes could be suitable for diverting fish from hydro power intakes into fish passages. LÄS MER