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dc.contributor.authorBetts-Piper, Alexandra M.eng
dc.contributor.authorZeeb, Barbara A.eng
dc.contributor.authorSmol, John P.eng
dc.date.accessioned2007-12-06T09:35:08Z
dc.date.available2007-12-06T09:35:08Z
dc.date.issued2004eng
dc.identifier.citationJournal of Paleolimnology 31 (4): 467-481en
dc.identifier.issn1573-0417eng
dc.identifier.urihttp://hdl.handle.net/1956/2473
dc.descriptionThis is the fifth in a series of nine papers published in this special issue dedicated to recent environmental change on Svalbard. H.J.B. Birks, Vivienne J. Jones, and Neil L. Rose were guest editors of this special issue.en
dc.description.abstractChrysophycean stomatocyst assemblages were analysed from the sediments of 17 lakes and ponds from Svalbard as one component of a multi-proxy investigation of recent environmental change in the high Arctic. Sediment cores and water chemistry were collected from each of the study lakes, and chrysophyte stomatocysts were investigated from the top 0.25 cm of sediment (present-day) and bottom (i.e. bottom of short sediment core, pre-industrial) sediment samples. This study represents the first undertaking of chrysophyte cyst morphology and distribution on Svalbard. A total of 153 cyst morphotypes were described with light microscopy and/or scanning electron microscopy, of which 21 are new forms. Canonical correspondence analysis indicates that the present-day distribution of cysts is significantly related to pH (p = 0.02), altitude (p = 0.02), and Na+ (p = 0.04). Marked shifts in chrysophyte cyst assemblages were recorded between the top and bottom sediment samples of most lakes. Rose et al. (2004) have demonstrated that Svalbard lakes receive atmospheric contaminants from both local and remote sources. The observed assemblage shifts may be the result of the combined effects of these point sources and long-range pollutants, or the effects of recent climate change, or both.en
dc.language.isoengeng
dc.publisherSpringereng
dc.subjectChrysophyceaeeng
dc.subjectClimate changeeng
dc.subjectHigh Arcticeng
dc.subjectPalaeolimnologyeng
dc.subjectResting stageseng
dc.subjectStomatocystseng
dc.subjectSvalbardeng
dc.subjectpHeng
dc.titleDistribution and autecology of chrysophyte cysts from high Arctic Svalbard lakes: preliminary evidence of recent environmental changeeng
dc.typePeer reviewedeng
dc.typeJournal articleeng
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480nob
bora.peerreviewedPeer reviewedeng
bibo.doihttp://dx.doi.org/10.1023/B:JOPL.0000022546.21996.41eng
dc.identifier.doi10.1023/b:jopl.0000022546.21996.41


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