Sökning: "Atlantic salmon"

Visar resultat 21 - 25 av 56 avhandlingar innehållade orden Atlantic salmon.

  1. 21. Behavioural Effects and Central Nervous System Actions of Growth Hormone in Salmonid Fish

    Författare :Viktoria Johansson; Göteborgs universitet; []
    Nyckelord :growth hormone; dopamine; central nervous system; cerebrospinal fluid; behaviour; rainbow trout; Atlantic salmon; brown trout; salmonids; teleosts; fish;

    Sammanfattning : .... LÄS MER

  3. 22. Feedback control of reproduction in Atlantic salmon, Salmo salar, male parr

    Författare :Efthimia Antonopoulou; Sylvie Dufour; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; zoologi; Zoology;

    Sammanfattning : In fish, as in other vertebrates, the gonads are stimulated by two pituitary gonadotropic hormones, follicle stimulating hormone (FSH) and luteinizing hormone (LH). LH and FSH secretion are regulated by the gonadal steroids acting either directly on the pituitary or indirectly via the hypothalamus. LÄS MER

  4. 23. Protein metabolism and nutrition in Atlantic salmon during estradiol-induced vitellogenin synthesis

    Författare :Thomas Olin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Benfiskar; Teleostei;

    Sammanfattning : .... LÄS MER

  5. 24. The estrogen receptor in fish and effects of synthetic estrogens in the environment - Ecological and evolutionary perspectives and societal awareness

    Författare :Lina Nikoleris; Biodiversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; the estrogen receptor; salmon evolution and ecology; contraceptives; information gaps; synthetic hormones; EE2; Atlantic salmon Salmo salar ; brown trout Salmo trutta ; roach Rutilus rutilus ;

    Sammanfattning : Synthetic hormones are a group of pharmaceuticals used for various human and animal treatments. However, consumption and disposal of these substances have also given rise to negative effects and environmental problems for organisms in the wild which is why these substances have been classified as estrogenic endocrine-disrupting chemicals (EDCs). LÄS MER

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

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

    Sammanfattning : 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. LÄS MER