Search for dissertations about: "brown trout Salmo trutta"

Showing result 16 - 20 of 47 swedish dissertations containing the words brown trout Salmo trutta.

  2. 16. Individual variation in behaviour: personality and performance of brown trout in the wild

    Author : Bart Adriaenssens; Göteborgs universitet; []
    Keywords : behavioural syndromes; personality; life-history; boldness; hatchery; survival; growth; foraging; anti-predator behaviour; learning; brown trout;

    Abstract : Individuals from the same population often show very different behaviour. These differences, when consistent across time, are referred to as animal personality or behavioural syndromes. Explaining the occurrence of animal personality from an evolutionary perspective has however proven a difficult issue to tackle. READ MORE

  4. 17. Modeling Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) responses to river habitat alteration

    Author : Kristine Lund Bjørnås; John Piccolo; Olle Calles; Steven F. Railsback; Leif Asbjørn Vøllestad; Karlstads universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ecohydraulics; Restoration; Natural resource management; Biology; Biologi;

    Abstract : Half the world’s river volume is affected by flow alterations and/or fragmentation, a figure that is likely to increase with the current global surge in hydropower development. At the same time, freshwater biodiversity is in rapid decline. READ MORE

  5. 18. The distribution of brown trout (Salmo trutta L.) in streams in southern Sweden

    Author : Anders Eklöv; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; growth; density; intraspecific competition; predation; cover; interspecific interaction; fish assemblage; pollutant; recolonization; Ecology; Ekologi;

    Abstract : This thesis examines the effect of water quality, habitat and species interactions on the occurrence and abundance of stream fishes in southern Sweden. I found that improvements in water quality between the 1960s and 1990s have led to recolonization of streams by brown trout (Salmo trutta L.), stone loach (Barbatula barbatula L. READ MORE

  6. 19. Genetic variation in two closely related salmonids, brown trout (Salmo trutta) and Atlantic salmon (Salmo salar) : a comparison of variability patterns and some management considerations

    Author : Gunnar Ståhl; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Within the Salmonidae, a wide range of intraspecific variation, both morphological and ecological, has long been recognized. In the present study electrophoresis was used to examine natural populations of brown trout (Salmo trutta) and Atlantic salmon (Salmo solar) in northern Sweden in an effort to reveal the genetic structure of these populations. READ MORE

  7. 20. The pace of life of juvenile brown trout – inter- and intra-individual variation in growth and behaviour

    Author : Joacim Näslund; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; behavioural syndrome; compensatory growth; growth rate; mortality; salmo trutta; pace-of-life syndrome; state-dependent behaviour; trade-off;

    Abstract : .... READ MORE