Sökning: "Trout"

Visar resultat 21 - 25 av 145 uppsatser innehållade ordet Trout.

  1. 21. Availability of macroinvertebrate prey : The effects on growth and size of brown trout (Salmo trutta)

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Jonatan Röhlcke; [2022]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 22. Manning’s roughness coefficient in small scale nature-like fish passages

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Aleksander Jaworowski; [2022]
    Nyckelord :Manning’s coefficient; flow measurement; fish passage; fish migration; roughness coefficient; Technology and Engineering;

    Sammanfattning : Fishway construction remains a crucial measure in environmental adaption of flow barriers. A well-functioning fishway should be able to pass all naturally occurring species of fish and other aquatic fauna. LÄS MER

  4. 23. Pharmaceutical drugs in aquatic ecosystems : Does exposure to oxazepam alter behavior of brown trout (Salmo trutta) and consequently affect the dominance hierarchy?

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Olivia Jirlén; [2022]
    Nyckelord :Dominance hierarchy; behavior; oxazepam;

    Sammanfattning : A greater consumption of pharmaceutical drugs entails an increased concentration of active benzodiazepines in aquatic ecosystems. Consequently, aquatic organisms are experiencing altered behavior that may affect dominance hierarchies since social status (among other variables) is associated with behavioral traits. LÄS MER

  5. 24. Fatty acid composition in salmonid eggs : a comparative study of Atlantic salmon and brown trout

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Linnéa Appert; [2022]
    Nyckelord :Salmonid eggs; Lipids; Fatty acids; Atlantic salmon; brown trout; DHA; EPA; AA;

    Sammanfattning : Atlantic salmon (AS) and brown trout (BT) are part of the salmonid family and are some of the most popular fish species in Western culture. Due to their popularity, there is incentive to understand the varying factors which ensures species survival. LÄS MER

  7. 25. Dispersal and habitat use of juvenile brown trout (Salmo trutta) following egg stocking : -A case study in the river Rotälven, Sweden

    Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Författare :Jonathan Larsson; [2022]
    Nyckelord :brown trout; egg stocking; dispersal; alevin; fry; parr; redd; habitat preference; Öring; romutsättning; spridning; yngel; parr; habitatpreferens;

    Sammanfattning : Egg stocking in rivers and streams is a common measure to support and re-introduce salmonid populations. To ensure the success of egg stocking programs, knowledge of the early life stages of juveniles including dispersal ability and habitat preferences of fry is a prerequisite. LÄS MER