Sökning: "Salmonid eggs"

Hittade 5 uppsatser innehållade orden Salmonid eggs.

  1. 1. Evaluation of River Restoration Measures: Interstitial Habitat Variables and Salmon Hatching Rates as Indicators of Success

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Limnologi

    Författare :Jonas Emanuelsson; [2023]
    Nyckelord :;

    Sammanfattning : River ecosystems are some of the most complex ecosystems on Earth, characterized by a highly heterogenous environment which is able to sustain a disproportionally high level of biodiversity in relation to the area of which they occupy. However, anthropogenic activities are encroaching on the highly diverse riverine landscape, threatening freshwater biodiversity. LÄS MER

  3. 2. 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

  4. 3. 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

  5. 4. Early environmental effects on dominance in juvenile Atlantic salmon (Salmo salar L.)

    Kandidat-uppsats, Karlstads universitet

    Författare :Lina Leksell; [2017]
    Nyckelord :Atlantic salmon; salmon; salmonids; fish; temperature; incubation temperature; climate change; behaviour; lax; laxfiskar; fisk; temperatur; inkuberingstemperatur; klimatförändringar; beteende;

    Sammanfattning : The earth’s climate is rapidly changing. With climate change currently altering the environment, water temperature is an important environmental factor that will have various effects on fishes since they are ectotherms. LÄS MER

  7. 5. Effect of incubation temperature on Atlantic salmon metabolism as indicated by ventilation rate

    Kandidat-uppsats, Karlstads universitet/Institutionen för miljö- och livsvetenskaper

    Författare :Claes Vernerback; [2016]
    Nyckelord :Atlantic salmon; salmon; salmonid; salmonids; fish; temperature; incubation tamperature; incubation; egg; fry; alevins; metabolism; ventilation rate; ventilation frequency; climate change; lax; laxfiskar; fisk; fiskar; temperatur; inkuberingstemperatur; inkubering; ägg; rom; metabolism; ämnesomsättning; gälslagsfrekvens; klimatförändringar;

    Sammanfattning : The global mean temperature is predicted to increase by up to 5 °C during this century. For fish, being ectotherms, temperature is one of the most important environmental factors, influencing them in a number of different ways, including effects on physiological traits, timing of life history events and behavior. LÄS MER