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Kan förändringar i bottenfaunan påvisas två år efter en bäckrestaurering?
Linköping University, Department of Physics, Chemistry and Biology. Linköping University.
2010 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesisAlternative title
Can changes in the benthos be detected two years after a steam restoration? (English)
Abstract [en]

The aim of this work is to analyze if a change in the benthic community can be detected two years after a restoration of a small stream. The samples were taken in a small stream at Tinnerö Eklandskap just south of Linköping. In addition to the restored area, two reference sites upstream and downstream of the restored area were sampled to compare to the restored site. The method used for sampling of benthic fauna in the stream was kick sampling. ASPT, Berger-Parker and Renkonen-indices were used to find out if there was any difference between the reference areas and the restored area. In addition to indices, rank-abundance curves and species lists were made to see if there was any trend difference between the different areas. The only index that showed a difference between the different areas was Berger-Parker diversity index. The reason why there were no greater differences between the areas may be due to the fact that two years is too short to allow time for the benthos to re-colonize the restored area.

Place, publisher, year, edition, pages
2010. , 28 p.
Keyword [en]
Benthic composition, benthic fauna, invertebrate community, kick sampling, Stream restoration
National Category
Biological Sciences Ecology
URN: urn:nbn:se:liu:diva-57866ISRN: LITH-IFM-G-EX--10/2343SEOAI: diva2:328168
2010-05-31, BL32, Linköpings universitet, Linköping, 11:10 (Swedish)
Life Earth Science
Available from: 2010-07-02 Created: 2010-07-01 Last updated: 2010-07-02Bibliographically approved

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Department of Physics, Chemistry and BiologyLinköping University
Biological SciencesEcology

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