Sökning: "Macroinvertebrates"

Visar resultat 1 - 5 av 24 uppsatser innehållade ordet Macroinvertebrates.

  1. 1. Utvärdering av biotopvårdande åtgärder i Grimåsbäcken. En analys av fysikaliska egenskaper och sammansättning av makroevertebrater.

    Kandidat-uppsats, Göteborgs universitet / Instiutionen för biologi och miljövetenskap

    Författare :Björn Andermo; [2024-01-22]
    Nyckelord :Channelized streams; retention; biotope preservation; macroinvertebrates; bottom substrate; woody debris.;

    Sammanfattning : Many streams have been exposed to extensive anthropogenic impact for the benefit of forestry and agriculture. The effects has mainly been channelization characterized by lowered and straightened channels. This homogeneous morphology leads to decreased ability to retain water as well as lost connection to the floodplain. LÄS MER

  3. 2. Restoration effects on benthic macroinvertebrate diversity and community composition in a river

    Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildning

    Författare :Fredrik Laggar; [2023]
    Nyckelord :Benthic invertebrates; diversity; communtiy composition;

    Sammanfattning : Physical restoration efforts are common methods to restore running waters containingdegraded ecosystems due to anthropogenic activities such as irrigation, ditching, dammingand flood prevention. The goal is usually to restore waters to a more natural state, creatingmore physically complex habitats supporting a larger number of species of both fish andinvertebrates, hence increasing biodiversity. LÄS MER

  4. 3. As I live and breathe! : The effects of hypolimnic oxygenation on benthic macroinvertebrate and zooplankton assemblages

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

    Författare :Rashid Kadhim; [2022]
    Nyckelord :lake hypoxia; benthic macroinvertebrates; chironomids; zooplankton;

    Sammanfattning : Exacerbated deep-water hypoxia, brought about by anthropogenic-derived dissolved organic carbon (DOC) input, has potentially detrimental impacts on organisms residing in freshwater ecosystems. Oxygenation of the water column is a potential management strategy to mitigate this impact, and used to alleviate DOC induced oxygen depletion. LÄS MER

  5. 4. En inventering av bottenfauna i Trönningeån med två biflöden

    Kandidat-uppsats, Högskolan i Halmstad

    Författare :Johannes Glännman; Kalle Ström Töttrup; [2022]
    Nyckelord :Bottenfauna; Trönningeån; ekologi;

    Sammanfattning : Benthic macroinvertebrates are usually small animals living in our lentic and lotic ecosystems, they have been used as indicators of water quality and biodiversity for a long time. Dam removals have become one of the “go-to” conservation methods for restoring connectivity in lotic ecosystems and thereby enabling passage upstream for migrating species. LÄS MER

  7. 5. Forest Ditches As Habitat For Aquatic Macroinvertebrate In Boreal Landscapes

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

    Författare :Lara Sánchez Calderón; [2022]
    Nyckelord :aquatic macroinvertebrates; drainage ditches; Sweden; mineral soil; peat soil; forestry;

    Sammanfattning : Large areas of northern Sweden have been ditched to promote forest growth by draining wet soils and peatlands. These ditches have greatly added to length of Sweden’s stream and river network, but the ecological properties of these man-made aquatic environments is poorly understood. LÄS MER