Sökning: "Atlantic salmon"

Visar resultat 1 - 5 av 50 avhandlingar innehållade orden Atlantic salmon.

  1. 1. Endocrinological studies on the young salmon, Salmo salar L., with special reference to smoltification

    Detta är en avhandling från Stockholm : Stockholm University

    Författare :Kenneth Lindahl; [1986]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; salmon; smoltification; Atlantic salmon; Lax;

    Sammanfattning : .... LÄS MER

  2. 2. Migration and quality of landlocked Atlantic salmon smolt Implications for conservation and management

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Johnny R Norrgård; Karlstads universitet.; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; acoustic telemetry; hatchery; life history; migration mortality; regulated rivers; Salmo salar; salmon; smolt; trout; Biology; Biologi;

    Sammanfattning : Atlantic salmon Salmo salar has a complex life cycle, including long migrations and habitat shifts for both juveniles and adults. As such, salmon populations are vulnerable to habitat degradation and fragmentation along their migratory routes. LÄS MER

  3. 3. Conservation of landlocked Atlantic salmon in a regulated river Behaviour of migratory spawners and juveniles

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Anna Hagelin; Karlstads universitet.; [2019]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Atlantic salmon; conservation; migration; spawning; hydropower; competition; juveniles; brown trout; hatchery reared; fallback; delay; Biology; Biologi;

    Sammanfattning : Hydropower dams represent one of the major threats to river ecosystems today. The dams block migratory routes in many rivers, which is problematic for migratory fish species. Trap-and-transport may be an alternative to fish passage solutions, as a strategy to compensate for lost river connectivity. LÄS MER

  4. 4. MHC and genomic diversity in Atlantic salmon (Salmo salar L.)

    Detta är en avhandling från Jakob Lohm, Department of Ecology, Animal Ecology, Ekologihuset, S-223 62 Lund Sweden

    Författare :Jakob Lohm; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; cytogenetik; Genetik; cytogenetics; Genetics; nucleotide diversity; isolation-by-distance; DGGE; AFLP; furunculosis; disease resistance; Arctic charr; brown trout; Atlantic salmon; population genetics; genetic variation; Mhc class IIB; Animal ecology;

    Sammanfattning : In this thesis I present studies concerning genomic diversity and genetic heterogeneity as well as the evolution and maintenance of genetic variation at a specific immune defence gene in Atlantic salmon (Salmo salar, L.). LÄS MER

  5. 5. Atlantic salmon in regulated rivers Migration, dam passage, and fish behavior

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Daniel Nyqvist; Karlstads universitet.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fish migration; fish passage; downstream migration; kelt; smolt; Biology; Biologi;

    Sammanfattning : Hydropower dams block migration routes and disrupt longitudinal connectivity in rivers, thereby posing a threat to migratory fish species. Various fish passage solutions have been implemented to improve connectivity with varying success. LÄS MER