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Fisksamhället i Spexhultasjön, Nässjö
Linköping University, The Department of Physics, Chemistry and Biology.
2007 (Swedish)Independent thesis Basic level (degree of Bachelor), 10 points / 15 hpStudent thesis
Abstract [en]

The lake Spexhultasjön is a moderate humic mesotrophic lake that is not acidified. The fish fauna was investigated by using a standard method for sampling freshwater fish with multi mesh gill nets. The fish fauna was diverse with perch, pike, tench, common whitefish, and roach. Perch and roach dominated. There were few pikes. The tench were few but big. The common whitefish was caught in deep water. The lake has condition class 2 according to the national environment protection board. The perch has a reproduction disorder. The roach has probably forced the perch into the benthoseating stage to early. A proposal intended to the county administrative board is to increase the production of a predator like pike or pike-pirch. The county administrative board ought to investigate why the share of pike is low and the roaches reproduction disorder.

Place, publisher, year, edition, pages
Institutionen för fysik, kemi och biologi , 2007. , 27 p.
Keyword [sv]
ekologi, fisksamhälle, provifiske, abborre, mört, konkurrens
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:liu:diva-11827ISRN: LiTH-IFM-Ex--07/1869--SEOAI: oai:DiVA.org:liu-11827DiVA: diva2:18240
Uppsok
bio-/geovetenskap
Supervisors
Examiners
Available from: 2008-05-19 Created: 2008-05-19

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fulltext(358 kB)867 downloads
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5d32c1931b2469adbbaa3d0579855986718fe8f7a241007c0ea4f1c1293af1d435aa6cf1
Type fulltextMimetype application/pdf

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The Department of Physics, Chemistry and Biology
Biological Sciences

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf