Sökning: "Salmonid fish"

Visar resultat 1 - 5 av 36 avhandlingar innehållade orden Salmonid fish.

  1. 1. Downstream migration of salmonids in regulated rivers : Non-conventional methods for fish diversion

    Författare :Johan Leander; Jonatan Klaminder; Micael Jonsson; Gustav Hellström; Paul Kemp; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fish migration; Fish passage; Fish guidance; Hydropower; Atlantic salmon; Brown trout; Bubble barrier; Non-physical barrier;

    Sammanfattning : Passages through hydropower plants can be fatal for downstream migrating salmonids (Salmo spp.). This is particularly true for large adults that are returning to the ocean after spawning. LÄS MER

  3. 2. 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

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

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

    Sammanfattning : 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. LÄS MER

  5. 4. The evolutionary study of the immunoglobulin heavy chain genes of a bony fish, rainbow trout (Oncorhynchus mykiss)

    Författare :Elisabet Andersson; Gregory W. Warr; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; immunoglobulin; heavy chain variable region gene; VH; rainbow trout; evolution; salmonid fish;

    Sammanfattning : .... LÄS MER

  7. 5. Novel Marine Ingredients for Aquaculture - Fish Nutrition, Physiology and Intestinal Health

    Författare :Niklas Warwas; Göteborgs universitet; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Marine ingredients; Intestinal health; Sustainable feed; Circular economy; Aquaculture;

    Sammanfattning : Aquaculture is among the fastest growing food production sectors globally and supplies more fish to the growing human population than capture fisheries. One of the major challenges in salmonid aquaculture is to find renewable and sustainable feed ingredients which also satisfy the nutritional requirements of the fish. LÄS MER