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Kan förändringar i bottenfaunan påvisas två år efter en bäckrestaurering?
Linköpings universitet, Institutionen för fysik, kemi och biologi. Linköpings universitet.
2010 (svensk)Independent thesis Basic level (degree of Bachelor), 10 poäng / 15 hpOppgaveAlternativ tittel
Can changes in the benthos be detected two years after a steam restoration? (engelsk)
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.

sted, utgiver, år, opplag, sider
2010. , s. 28
Emneord [en]
Benthic composition, benthic fauna, invertebrate community, kick sampling, Stream restoration
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-57866ISRN: LITH-IFM-G-EX--10/2343SEOAI: oai:DiVA.org:liu-57866DiVA, id: diva2:328168
Presentation
2010-05-31, BL32, Linköpings universitet, Linköping, 11:10 (svensk)
Uppsök
Life Earth Science
Veileder
Examiner
Tilgjengelig fra: 2010-07-02 Laget: 2010-07-01 Sist oppdatert: 2010-07-02bibliografisk kontrollert

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