Sökning: "Bothnian Bay"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden Bothnian Bay.

  1. 1. A catch-22 scenario in the Swedish food system : –A scientific examination of cyprinid fishingand its management possibilities in Sweden

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Peter Andreas Van Berlekom; [2023]
    Nyckelord :Cyprinids; Swedish food supply chain; fisheries management; Complex Adaptive System CAS ;

    Sammanfattning : Cyprinid fish like roach, bream and ide are natural resources in Sweden that were common and consumed in households up to the late 19th century. Due to societal changes during the industrialization cyprinids lost their domestic importance. Today we see an increasing demand for sustainable food sources. LÄS MER

  3. 2. TRACKING WASTEWATER EMISSIONS IN RIVERS ENTERING GULF OF BOTHNIA COAST

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

    Författare :Helen Mkandawire; [2023]
    Nyckelord :Nutrients inputs; wastewater; coastal waters; Gulf of Bothnia; wastewater emissions; nutrient transportation; marine water; nutrient loading; eutrophication.;

    Sammanfattning : The Gulf of Bothnia consists of two sub-basins in the northern Baltic Sea: the Bothnian Sea (salinity 4-5‰) and Bothnian Bay (salinity 2-3‰). Changing nutrient concentrations and signs of eutrophication has recently been observed in the Gulf of Bothnia. LÄS MER

  4. 3. Gäddans val av lekvikar : Vilka faktorer bestämmer tätheterna av vuxna gäddor i Bottenhavets vikar?

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

    Författare :Simon Ingvald; [2023]
    Nyckelord :Northern pike; Esox lucius; pike recruitment; spawning habitat; rod fishing inventory;

    Sammanfattning : Northern pike (Esox lucius L) populations have been declining along the east coast of Sweden, including the Gävleborg coast. This negative trend is believed to be caused by factors related to pike recruitment including loss of suitable spawning habitats. LÄS MER

  5. 4. Eutrophication effects on a coastal macrophyte community in the Bothnian Sea

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

    Författare :Emilia Linder Wiktorsson; [2021]
    Nyckelord :eutrophication; macrophytes; opportunistic algae; Baltic Sea; Bothnian Sea;

    Sammanfattning : Eutrophication is a major concern in the Baltic Sea and it is affecting macrophyte communities by promoting the growth of opportunistic algae and decreasing the cover of perennial macrophyte species via shading. It is however uncertain how common eutrophication and its symptoms are in the northern parts of the Baltic Sea, the Botnian Sea. LÄS MER

  7. 5. Biochar-based thin-layer capping of contaminated sediment in Burefjärden, northern Sweden : Assessment of biochar mixed into four structural materials for preventing release of trace elements from sediment to water

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Nathalie Pantzare; [2021]
    Nyckelord :biochar; contaminated sediment; remediation; thin-layer capping;

    Sammanfattning : Coastal areas around the world have been recognized as largely impacted by anthropogenic activities resulting in pollution of marine sediments. In Sweden, surveys conducted along the coastline of the Bothnian Bay have identified a total area of about 29 km2 as fiber rich sediments. LÄS MER