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dc.contributor.authorvan Hardenbroek, Maarten
dc.contributor.authorRinta, Päivi
dc.contributor.authorWooller, Matthew J.
dc.contributor.authorSchilder, Johannes
dc.contributor.authorStötter, Tabea
dc.contributor.authorHeiri, Oliver
dc.date.accessioned2019-01-14T10:25:05Z
dc.date.available2020-06-01T21:35:15Z
dc.date.issued2018
dc.identifier.citationvan Hardenbroek, M., Rinta, P., Wooller, M. J., Schilder, J., Stötter, T., & Heiri, O. (2018). Flotsam samples can help explain the δ13C and δ15N values of invertebrate resting stages in lake sediment. <i>Quaternary Science Reviews</i>, <i>189</i>, 187-196. <a href="https://doi.org/10.1016/j.quascirev.2018.04.008" target="_blank">https://doi.org/10.1016/j.quascirev.2018.04.008</a>
dc.identifier.otherCONVID_28027018
dc.identifier.otherTUTKAID_77501
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/62455
dc.description.abstractThe stable isotopic composition of chitinous remains of Cladocera (water fleas) and freshwater Bryozoa (moss animals) preserved in lake sediment records can provide supporting insights into past environmental and ecosystem changes in lakes. Here we explore whether analyses of these remains isolated from lake flotsam can provide information on the driving variables affecting the isotopic composition of these remains. We collected flotsam in 53 lakes and found enough material in 33 lakes to measure the stable carbon and nitrogen isotope ratios (expressed as δ13C and δ15N values, respectively) of resting stages. These values were compared with lake characteristics, water chemistry measurements, and the isotopic composition of sedimentary organic matter (SOM) in the lakes. Mean δ13C values of cladoceran ephippia and SOM were correlated and both were also negatively correlated with deep water methane concentrations and indicators of lake stratification. This supports the findings of previous studies that methane-derived carbon can provide a significant proportion of carbon entering planktonic food webs. Mean δ15N values of bryozoan statoblasts and SOM were correlated, suggesting that both reflect the δ15N values of phytoplankton. Our results provide information on how environmental variables in lakes can influence the δ13C and δ15N values in resting stages, but flotsam samples can also potentially be used to assess seasonal stable isotope variability of resting stages. Both types of information are important to improve palaeoenvironmental interpretations of stable isotope records based on these remains in lake sediments.fi
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherPergamon Press
dc.relation.ispartofseriesQuaternary Science Reviews
dc.rightsCC BY-NC-ND 4.0
dc.subject.otherstable isotopes
dc.subject.otherephippia
dc.subject.otherstatoblasts
dc.subject.otherflotsam
dc.subject.othersediment
dc.titleFlotsam samples can help explain the δ13C and δ15N values of invertebrate resting stages in lake sediment
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201901091132
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineAquatic Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2019-01-09T10:15:15Z
dc.description.reviewstatuspeerReviewed
dc.format.pagerange187-196
dc.relation.issn0277-3791
dc.relation.numberinseries0
dc.relation.volume189
dc.type.versionacceptedVersion
dc.rights.copyright© 2018 Elsevier Ltd.
dc.rights.accesslevelopenAccessfi
dc.subject.ysojärvet
dc.subject.ysosedimentit
dc.subject.ysoorgaaninen aines
dc.subject.ysoisotoopit
dc.subject.ysoselkärangattomat
dc.subject.ysometaani
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p9374
jyx.subject.urihttp://www.yso.fi/onto/yso/p14605
jyx.subject.urihttp://www.yso.fi/onto/yso/p14873
jyx.subject.urihttp://www.yso.fi/onto/yso/p6387
jyx.subject.urihttp://www.yso.fi/onto/yso/p3931
jyx.subject.urihttp://www.yso.fi/onto/yso/p13222
dc.rights.urlhttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.relation.doi10.1016/j.quascirev.2018.04.008


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