Sökning: "Macroinvertebrates"

Visar resultat 1 - 5 av 16 uppsatser innehållade ordet Macroinvertebrates.

  1. 1. Macroinvertebrate sampling in hydropeaking rivers : Testing Hester-Dendy samplers in a laboratory environment using different flow conditions

    Kandidat-uppsats, Karlstads universitet/Avdelningen för biologi

    Författare :Mattias Hansson; [2020]
    Nyckelord :hydropower; bioassessment; benthic macroinvertebrates; biotic indicator; vattenkraft; biologiska bedömningsgrunder; bentiska makroevertebrater; bioindikator;

    Sammanfattning : Degraded rivers and streams caused by disturbances have created a need for reliable tools to assess the ecological status of such ecosystems. Numerous methods and programs have been developed to assess ecological status using biological indicators, benthic macroinvertebrates are the most commonly used biotic indicator. LÄS MER

  2. 2. Seasonal community dynamics of macroinvertebrates in an Arctic stream

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

    Författare :Ellinor Jakobsson; [2019]
    Nyckelord :Macroinvertebrates; Arctic; seasonality; community composition; Abisko;

    Sammanfattning : Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. LÄS MER

  3. 3. Seasonal community dynamics of macroinvertebrates in an Arctic stream

    Kandidat-uppsats,

    Författare :Ellinor Jakobsson; [2019]
    Nyckelord :Macroinvertebrates; Arctic; seasonality; community composition; Abisko;

    Sammanfattning : Arctic ecosystems are amongst the most vulnerable on Earth to ongoing climate change. While the responses to these changes are well studied on land, less is known about how aquatic communities may respond to a warmer arctic. LÄS MER

  4. 4. Effects of a fish farm on downstream macroinvertebrates

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

    Författare :Joakim Thoresson; [2018]
    Nyckelord :;

    Sammanfattning : The number of fish farms is increasing worldwide tomeet the global demand for fish used as a food source for humans. The WorldBank predicts that by 2030, 62 percent of all consumed fish globally will beproduced in fish farms. Due to this increasing demand for fish, fish farming isa growing business and the numbers of fish farms are increasing. LÄS MER

  5. 5. Hasslebäcken En studie av vattenkvalitet,vandringshinder och potentiellareproduktionsbiotoper för öring

    Kandidat-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap; Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Julius Jarving Ohlsson; Linus Welander; [2016]
    Nyckelord :Trout; fish barrier; benthic macroinvertebrates; stream; eutrophication.;

    Sammanfattning : This paper is about analyzing water quality of a stream that flows in southwest of Swedencalled Hasslebäcken. The stream is a tributary of Suseån and has its springs in the naturereserve Biskopstorp and flows through a mixed landscape of mostly spruce forests andagriculture land. LÄS MER