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dc.contributor.author
Lattaud, Julie
dc.contributor.author
Balzano, Sergio
dc.contributor.author
van der Meer, Marcel T. J.
dc.contributor.author
Villanueva, Laura
dc.contributor.author
Hopmans, Ellen C.
dc.contributor.author
Sinninghe Damsté, Jaap S.
dc.contributor.author
Schouten, Stefan
dc.date.accessioned
2021-08-18T10:21:06Z
dc.date.available
2021-07-15T10:22:44Z
dc.date.available
2021-08-18T10:21:06Z
dc.date.issued
2021-06
dc.identifier.issn
0146-6380
dc.identifier.other
10.1016/j.orggeochem.2021.104223
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/494829
dc.identifier.doi
10.3929/ethz-b-000494829
dc.description.abstract
Long-chain diols (LCDs) are lipids commonly found in freshwater environments. They are produced in lake waters and in low water-flow regions of rivers but their sources and the controls on their abundance are poorly constrained. To be able to use LCD as environmental proxy (e.g. for reconstructing lake temperature and as a freshwater indicator in marine systems) we need to understand the sources of these LCDs and the processes controlling their abundance and distribution. Therefore, we performed a seasonal study of suspended particulate matter in Lake Geneva, a temperate lake at the border of France and Switzerland in 2017-2018. LCDs were most abundant in lake surface water from late spring to early autumn, coinciding with the thermal stratification of the water column. Their distribution varied throughout the year, which points towards multiple producers. Incubation of lake water with C-13-labelled bicarbonate only showed uptake of inorganic carbon in LCDs during their peak seasonal abundance. An 18S rRNA gene amplicon analysis revealed that eustigmatophytes, known producers of LCDs, are present in Lake Geneva and show the same seasonal trend in abundance as the LCDs, indicating that these algae are likely the most important producers of LCDs in this lake. In combination with previous studies our results suggest that LCDs show potential to trace changes in lake water-column stratification, and validate the use of the C-32 1,15-diol as a proxy for freshwater input from rivers and lakes in marine sediments. (C) 2021 The Author(s). Published by Elsevier Ltd.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Long-chain diols
en_US
dc.subject
Lake Geneva
en_US
dc.subject
18S rRNA gene
en_US
dc.title
Sources and seasonality of long-chain diols in a temperate lake (Lake Geneva)
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2021-03-23
ethz.journal.title
Organic Geochemistry
ethz.journal.volume
156
en_US
ethz.journal.abbreviated
Org. Geochem.
ethz.pages.start
104223
en_US
ethz.size
13 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2021-07-15T10:23:53Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-18T10:21:13Z
ethz.rosetta.lastUpdated
2022-03-29T11:15:28Z
ethz.rosetta.versionExported
true
ethz.COinS
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