Sökning: "Anna Gusén"

Hittade 2 uppsatser innehållade orden Anna Gusén.

  1. 1. Environmental variation and phenotypic plasticity : The effect of water visibility on body pigmentation in perch (Perca fluviatilis L.)

    Master-uppsats, Institutionen för biologisk grundutbildning

    Författare :Anna Gusén; [2010]
    Nyckelord :Phenotypic plasticity; perch; body pigmentation; background colour; camouflage;

    Sammanfattning : Phenotypic plasticity is defined as an organism’s ability to express differentphenotypes depending on the environment. Predation is one of the key forces inecology and can indirectly cause a change of the phenotype in fish populations.Pigmentation change in order to match the background is one type of camouflage usedin fish and other organisms. LÄS MER

  3. 2. Lillån : Statusbedömning enligt EU:s ramdirektiv för vatten

    Kandidat-uppsats, Akademin för hållbar samhälls- och teknikutveckling

    Författare :Anna Gusén; [2009]
    Nyckelord :Vattendirektiv;

    Sammanfattning : In Sweden, the County Administration board is responsible for improving the water quality in lakes and watercourses according to the European Union Water Framework Directive. In Västmanland county, where river Lillån is situated, the County Administration of Västmanland have the main responsibility for the aquatic environment in that area. LÄS MER