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1. Identity statement
Reference TypeJournal Article
Sitemtc-m21c.sid.inpe.br (namespace prefix: upn:3Q3U5H8)
Holder Codeisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identifier8JMKD3MGP3W34R/43F85Q5
Repositorysid.inpe.br/mtc-m21c/2020/10.23.12.05
Last Update2020:10.23.12.05.46 (UTC) simone
Metadata Repositorysid.inpe.br/mtc-m21c/2020/10.23.12.05.46
Metadata Last Update2022:01.04.01.35.29 (UTC) administrator
DOI10.5194/bg-17-4313-2020
ISSN1726-4170
Citation KeyLesaMJVRBAK:2020:DeHiCo
TitleDistribution of planktonic foraminifera in the subtropical South Atlantic: depth hierarchy of controlling factors
Year2020
MonthAug.
Access Date2025, Dec. 09
Type of Workjournal article
Secondary TypePRE PI
Number of Files1
Size24286 KiB
2. Context
Author1 Lesa, Douglas
2 Morard, Raphaël
3 Jonkers, Lukas
4 Venâncio, Igor Martins
5 Reuter, Runa
6 Baumeister, Adrian
7 Albuquerque, Ana Luiza
8 Kucera, Michal
Group1
2
3
4 CGCPT-CGCPT-INPE-MCTIC-GOV-BR
Affiliation1 University of Bremen
2 University of Bremen
3 University of Bremen
4 Instituto Nacional de Pesquisas Espaciais (INPE)
5 University of Bremen
6 University of Bremen
7 Universidade Federal Fluminense (UFF)
8 University of Bremen
Author e-Mail Address1 dvolessa@id.uff.br
2
3
4 igor.venancio@inpe.br
JournalBiogeosciences
Volume17
Number16
Pages4313-4342
Secondary MarkA1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_CIÊNCIAS_AMBIENTAIS A1_CIÊNCIAS_AGRÁRIAS_I A1_BIODIVERSIDADE A2_CIÊNCIAS_BIOLÓGICAS_I B1_ASTRONOMIA_/_FÍSICA
Host Collectionurlib.net/www/2017/11.22.19.04 upn:3Q3U5H8
History (UTC)2020-10-23 12:05:46 :: simone -> administrator ::
2020-10-23 12:05:47 :: administrator -> simone :: 2020
2020-10-23 12:06:28 :: simone -> administrator :: 2020
2020-10-27 15:35:03 :: administrator -> simone :: 2020
2020-12-14 14:59:00 :: simone -> administrator :: 2020
2022-01-04 01:35:29 :: administrator -> simone :: 2020
3. Content and structure
Is the master or a copy?is the master
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Abstract. Temperature appears to be the best predictor of species composition of planktonic foraminifera communities, making it possible to use their fossil assemblages to reconstruct sea surface temperature (SST) variation in the past. However, the role of other environmental factors potentially modulating the spatial and vertical distribution of planktonic foraminifera species is poorly understood. This is especially relevant for environmental factors affecting the subsurface habitat. If such factors play a role, changes in the abundance of subsurface-dwelling species may not solely reflect SST variation. In order to constrain the effect of subsurface parameters on species composition, we here characterize the vertical distribution of living planktonic foraminifera community across an eastwest transect through the subtropical South Atlantic Ocean, where SST variability was small, but the subsurface water mass structure changed dramatically. Four planktonic foraminifera communities could be identified across the top 700 m of the transect. Gyre and Agulhas Leakage surface faunas were predominantly composed of Globigerinoides ruber, Globigerinoides tenellus, Trilobatus sacculifer, Globoturborotalita rubescens, Globigerinella calida, Tenuitella iota, and Globigerinita glutinata, and these only differed in terms of relative abundances (community composition). Upwelling fauna was dominated by Neogloboquadrina pachyderma, Neogloboquadrina incompta, Globorotalia crassaformis, and Globorotalia inflata. Thermocline fauna was dominated by Tenuitella fleisheri, Globorotalia truncatulinoides, and Globorotalia scitula in the west and by G. scitula only in the east. The largest part of the standing stock was consistently found in the surface layer, but SST was not the main predictor of species composition either for the depth-integrated fauna across the stations or at individual depth layers. Instead, we identified a pattern of vertical stacking of different parameters controlling species composition, reflecting different aspects of the pelagic habitat. Whereas productivity appears to dominate in the mixed layer (060 m), physical properties (temperature, salinity) become important at intermediate depths and in the subsurface, a complex combination of factors including oxygen concentration is required to explain the assemblage composition. These results indicate that the seemingly straightforward relationship between assemblage composition and SST in sedimentary assemblages reflects vertically and seasonally integrated processes that are only indirectly linked to SST. It also implies that fossil assemblages of planktonic foraminifera should also contain a signature of subsurface processes, which could be used for paleoceanographic reconstructions.
AreaMET
Arrangementurlib.net > BDMCI > Fonds > Produção anterior à 2021 > CGCPT > Distribution of planktonic...
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4. Conditions of access and use
data URIupn:3Q3U5H8:8JMKD3MGP3W34R/43F85Q5
data URLhttp://urlib.net/ibi/8JMKD3MGP3W34R/43F85Q5
zipped data URLhttp://urlib.net/zip/8JMKD3MGP3W34R/43F85Q5
Languageen
Target Filelessa_distribution.pdf
User Groupsimone
Reader Groupadministrator
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Archiving Policyallowpublisher allowfinaldraft
Update Permissionnot transferred
5. Allied materials
Next Higher Units8JMKD3MGPCW/3EUPEJL
Citing Item Listsid.inpe.br/bibdigital/2013/10.06.18.03 - 49
DisseminationWEBSCI; PORTALCAPES; SCOPUS.
6. Notes
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