Search for dissertations about: "Brown trout"

Showing result 1 - 5 of 61 swedish dissertations containing the words Brown trout.

  2. 1. Migration in anadromous brown trout

    Author : David Aldvén; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Downstream migration; Temperature; Discharge; Genetics; Growth rate; Climate change; Salmo trutta; Salmo salar; Sea trout; Salmon; Biology; Ecology;

    Abstract : This thesis investigates the anadromous migration of brown trout (Salmo trutta) with the overall aim to improve stock management within the region. Several field studies were conducted in different streams and coastal areas on the west coast of Sweden specifically aimed to evaluate environmental triggers for migration (Paper I), migration pathways and strategies (Paper III and IV) as well as the genetic differentiation of anadromous populations of brown trout (Paper V). READ MORE

  4. 2. Divergent Stress Coping Strategies in Brown trout (Salmo trutta)

    Author : Daniel Brelin; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Stress coping; Salmo trutta; Brown trout; teleost fish; stress response; noradrenalin; adrenalin; dopamine; cortisol; hypoxia; confinement; resident-intruder; Animal physiology; Zoofysiologi;

    Abstract : .... READ MORE

  5. 3. Spatio-temporal genetic variation in brown trout (Salmo trutta) : microevolutionary studies with particular focus on effective population size, temporal stability, and local adaptation

    Author : Stefan Palm; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Brown trout; Fiskar; Öring; Populationsstudier;

    Abstract : .... READ MORE

  6. 4. Fine stream wood : effects on drift and brown trout (Salmo trutta) growth and behaviour

    Author : Åsa Enefalk; Eva Bergman; Anders Nilsson; Stanley Gregory; Karlstads universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; stream fish; wood; salmonid; trout; aquatic invertebrates; behaviour; sheltering; Biology; Biologi;

    Abstract : Stream ecosystems and their riparian zones have previously been regarded as two different ecosystems, linked through numerous reciprocal subsidies. Today, ecologists agree that the stream and the riparian zone should be regarded as one system, the stream-riparian ecosystem, which is characterised largely by the subsidies between land and water. READ MORE

  7. 5. Forest-stream linkages : Experimental studies of foraging and growth of brown trout (Salmo trutta L)

    Author : Pär Gustafsson; Eva Bergman; Larry Greenberg; John Armstrong; Karlstads universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Brown trout; diet; growth; riparian zone; forest-stream linkages; terrestrial invertebrates; light; primary production; Biology; Biologi; Biology; Biologi;

    Abstract : Riparian vegetation along streams and rivers affects the aquatic community in numerous ways and often operates as a link for energy flux between forest and streams. The studies presented in this licentiate thesis focus on light and terrestrial invertebrates, two factors influenced by riparian zone structure, which potentially affect stream ecosystems and thus also brown trout (Salmo trutta). READ MORE