Sökning: "bentiska makroevertebrater"

Hittade 4 uppsatser innehållade orden bentiska makroevertebrater.

  1. 1. Effects of native freshwater mussels and leaf debris on benthic macroinvertebrate abundance and diversity : A field experiment with Margaritifera margaritifera in Vasslabäcken, Örebro county

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

    Författare :Kai Sven Onken; [2021]
    Nyckelord :bivalve; functional role; habitat modification; decomposition; biodeposition;

    Sammanfattning : Organisms that are part of complex ecosystems interact not only with other organisms but also with their environment, affecting ecosystem functions. In aquatic ecosystems filter feeders affect ecosystem functioning by transferring energy and nutrients from the water to the benthos. LÄS MER

  3. 2. 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

  4. 3. Återinventering av Ivösjöns bottenfauna

    Kandidat-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Olof Lövdén; [2016]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : En inventering av Ivösjöns bottenfauna (makroevertebrater) genomfördes våren 2016 på tio lokaler runt omkring Ivösjön i nordöstra Skåne. Inventeringen fungerade dessutom som en uppföljning till en liknande inventering år 2008. LÄS MER

  5. 4. Effekt av fin ved (Salix sp.) på drift i semi-naturliga bäckar

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

    Författare :Mikael Rydin; [2015]
    Nyckelord :Benthos; brown trout; fresh water stream; macroinvertebrates; Bentos; öring; rinnande vatten; makroevertebrater;

    Sammanfattning : In streams, wood provides protection, food and substrate for benthic macroinvertebrates, which leads a higher density and diversity of the benthic fauna compared to streams without wood. To examine wood and its effect on drift of macroinvertebrates an experiment was done in 18 sections of six semi-natural streams where fine woody debris (Salix sp. LÄS MER