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dc.contributor.authorHesthagen, Trygve H.
dc.contributor.authorSaksgård, Randi J.
dc.date.accessioned2018-11-15T11:05:27Z
dc.date.available2018-11-15T11:05:27Z
dc.date.created2018-09-26T12:15:04Z
dc.date.issued2018
dc.identifier.citationFauna Norvegica. 2018, 38 30-36.nb_NO
dc.identifier.issn1502-4873
dc.identifier.urihttp://hdl.handle.net/11250/2572979
dc.description.abstractArctic charr in Rondvatn, a formerly highly acidified mountain lake in southern Norway, was re-established through stocking. The population became extinct during the early 1980s when the lake had an annual mean pH of 5.2-5.4, with occasional declines to 4.3-4.7. From the mid to late 1990s, the pH and acid-neutralizing capacity (ANC) rose to 5.8-5.9 and 13-15 μeq L-1, respectively. The lake is poor in ions with a mean conductivity and calcium concentration of 7.7 μS cm-1 and 0.35 mg L-1, respectively. The lake was stocked with 250 young Arctic charr from four small neighbouring lakes between 1998 and 2000. This introduction was successful. Test-fishing in 2004, 2008 and 2012 revealed a relatively dense population of Arctic charr, and the presence of several new age-groups. pH and ANC has remained stable since the late 1990s, or has slightly improved.nb_NO
dc.language.isoengnb_NO
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.subjectlakenb_NO
dc.subjectacidificationnb_NO
dc.subjectArctic charrnb_NO
dc.subjectre-establishmentnb_NO
dc.titleArctic charr (Salvelinus alpinus) re-established in a formerly acidified and highly dilute mountain lake under declining acidic depositionnb_NO
dc.title.alternativeArctic charr (Salvelinus alpinus) re-established in a formerly acidified and highly dilute mountain lake under declining acidic depositionnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.rights.holder©The Authorsnb_NO
dc.subject.nsiVDP::Zoologiske og botaniske fag: 480nb_NO
dc.subject.nsiVDP::Zoology and botany: 480nb_NO
dc.source.pagenumber30-36nb_NO
dc.source.volume38nb_NO
dc.source.journalFauna Norvegicanb_NO
dc.identifier.doi10.5324/fn.v38i0.2272
dc.identifier.cristin1613906
cristin.unitcode7511,3,0,0
cristin.unitnameAvdeling for akvatisk økologi
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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Navngivelse-Ikkekommersiell 4.0 Internasjonal
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