Effect of eolian Fe-supply change on the phytoplankton productivity and community in central equatorial Pacific Ocean during the Pleistocene: A lipid biomarker approach SCIE SCOPUS

DC Field Value Language
dc.contributor.author Badejo, Adegoke Olugboyega -
dc.contributor.author Seo, Inah -
dc.contributor.author Kim, Wonnyon -
dc.contributor.author Hyeong, Kiseong -
dc.contributor.author Ju, Se-Jong -
dc.date.accessioned 2020-04-16T09:55:18Z -
dc.date.available 2020-04-16T09:55:18Z -
dc.date.created 2020-01-28 -
dc.date.issued 2017-10 -
dc.identifier.issn 0146-6380 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/1150 -
dc.description.abstract The effect of iron (Fe) fertilization on biological productivity and community structure in the equatorial Pacific, a region with high nutrient and low chlorophyll concentrations, has been debated for many years. Here we present lipid biomarker and geochemical proxy records in a sediment core from the central equatorial Pacific spanning from 1100 to 600 ka to investigate the response of marine phytoplankton communities to eolian Fe supply and to assess links to environmental fluctuations during the Pleistocene. We found a strong link between change in eolian Fe input and phytoplankton community structure. Our data demonstrate that an increase in eolian Fe supply across the 800 ka boundary resulted in a shift in the major primary producer from coccolithophores (alkenones) to diatoms (epibrassicasterol) and dinoflagellates (dinosterol) at the study site. This strong link between changes in eolian Fe supply and the community structure of plankton during 800-600 ka may have been associated with a change in atmospheric and ocean conditions due to southward migration of the Intertropical Convergence Zone (ITCZ). The lipid biomarker results show that such a high supply of eolian Fe might have led to a change in the dominant phytoplankton group. However, the opal record, which is often used as a primary productivity indicator, was not consistent with the biomarker results. Therefore, the results indicate that multi-proxy approaches should be used in paleoenvironmental studies because different proxies can reveal different aspects of environmental conditions, thus contributing to a better understanding of paleoceanographic conditions. (C) 2017 Elsevier Ltd. All rights reserved. -
dc.description.uri 1 -
dc.language English -
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD -
dc.subject GEPHYROCAPSA-OCEANICA -
dc.subject IRON -
dc.subject GROWTH -
dc.subject MARINE -
dc.subject TRANSITION -
dc.subject SEA -
dc.subject AVAILABILITY -
dc.subject SEDIMENTS -
dc.subject CLIMATE -
dc.subject DIATOMS -
dc.title Effect of eolian Fe-supply change on the phytoplankton productivity and community in central equatorial Pacific Ocean during the Pleistocene: A lipid biomarker approach -
dc.type Article -
dc.citation.endPage 176 -
dc.citation.startPage 170 -
dc.citation.title ORGANIC GEOCHEMISTRY -
dc.citation.volume 112 -
dc.contributor.alternativeName 서인아 -
dc.contributor.alternativeName 김원년 -
dc.contributor.alternativeName 형기성 -
dc.contributor.alternativeName 주세종 -
dc.identifier.bibliographicCitation ORGANIC GEOCHEMISTRY, v.112, pp.170 - 176 -
dc.identifier.doi 10.1016/j.orggeochem.2017.07.010 -
dc.identifier.scopusid 2-s2.0-85028800494 -
dc.identifier.wosid 000414812300014 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus GEPHYROCAPSA-OCEANICA -
dc.subject.keywordPlus IRON -
dc.subject.keywordPlus GROWTH -
dc.subject.keywordPlus MARINE -
dc.subject.keywordPlus TRANSITION -
dc.subject.keywordPlus SEA -
dc.subject.keywordPlus AVAILABILITY -
dc.subject.keywordPlus SEDIMENTS -
dc.subject.keywordPlus CLIMATE -
dc.subject.keywordPlus DIATOMS -
dc.subject.keywordAuthor Central equatorial Pacific -
dc.subject.keywordAuthor Pleistocene -
dc.subject.keywordAuthor Eolian iron supply -
dc.subject.keywordAuthor Phytoplankton production -
dc.subject.keywordAuthor Phytoplankton community -
dc.subject.keywordAuthor Algal lipid biomarkers -
dc.relation.journalWebOfScienceCategory Geochemistry & Geophysics -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Geochemistry & Geophysics -
Appears in Collections:
Marine Resources & Environment Research Division > Ocean Georesources Research Department > 1. Journal Articles
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