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Article: Deep-sea ostracods from the South Atlantic sector of the Southern ocean during the Last 370,000 years

TitleDeep-sea ostracods from the South Atlantic sector of the Southern ocean during the Last 370,000 years
Authors
KeywordsDeep-sea Ostracoda
Deep-water circulation
Paleoecology
Quaternary
Southern Ocean
Issue Date2009
Citation
Journal Of Paleontology, 2009, v. 83 n. 6, p. 914-930 How to Cite?
AbstractWe report changes of deep-sea ostracod fauna during the last 370,000 yr from the Ocean Drilling Program (ODP) Hole 704A in the South Atlantic sector of the Southern Ocean. The results show that faunal changes are coincident with glacial/interglacial-scale deep-water circulation changes, even though our dataset is relatively small and the waters are barren of ostracods until mid-MIS (Marine Isotope Stage) 5. Krithe and Poseidonamicus were dominant during the Holocene interglacial period and the latter part of MIS 5, when this site was under the influence of North Atlantic Deep Water (NADW). Conversely, Henryhowella and Legitimocythere were dominant during glacial periods, when this site was in the path of Circumpolar Deep Water (CPDW). Three new species (Aversovalva brandaoae, Poseidonamicus hisayoae, and Krithe mazziniae) are described herein. This is the first report of Quaternary glacial/interglacial scale deep-sea ostracod faunal changes in the Southern and South Atlantic Oceans, a key region for understanding Quaternary climate and deep-water circulation, although the paucity of Quaternary ostracods in this region necessitates further research. © 2009 The Paleontological Society.
Persistent Identifierhttp://hdl.handle.net/10722/132786
ISSN
2015 Impact Factor: 1.783
2015 SCImago Journal Rankings: 1.002
ISI Accession Number ID
Funding AgencyGrant Number
National Science Foundation
Japan Society
Smithsonian Postdoctoral Fellowship
Smithsonian Marine Science Network Postdoctoral Fellowship
Funding Information:

We thank the staff of the U.S. Geological Survey Eastern Earth Surface Processes Team and the Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, especially C. Sanford, for their support throughout this project; H. Okahashi for continuous support; S. Whittaker for help in SEM imaging; M.Florence for help in depositing type and figured specimens; K. A. VenZ-CLirtis for help with samples; S. N. Brandao for taxonomic input; and M. Robinson and J. Repetski for valuable cornments. This paper benefited from reviews by two anonymous referees and editing by S. Westrop. This research used samples provided by the Ocean Drilling Program. The Ocean Drilling Program is sponsored by the National Science Foundation and participating countries under the management of Joint Oceanographic Institutions. This work was supported by the Japan Society for the Promotion of Science Postdoctoral Fellowships for Research Abroad, Smithsonian Postdoctoral Fellowship, and Smithsonian Marine Science Network Postdoctoral Fellowship (to M.Y.).

References

 

DC FieldValueLanguage
dc.contributor.authorYasuhara, Men_HK
dc.contributor.authorCronin, TMen_HK
dc.contributor.authorHunt, Gen_HK
dc.contributor.authorHodell, DAen_HK
dc.date.accessioned2011-03-28T09:29:04Z-
dc.date.available2011-03-28T09:29:04Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal Of Paleontology, 2009, v. 83 n. 6, p. 914-930en_HK
dc.identifier.issn0022-3360en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132786-
dc.description.abstractWe report changes of deep-sea ostracod fauna during the last 370,000 yr from the Ocean Drilling Program (ODP) Hole 704A in the South Atlantic sector of the Southern Ocean. The results show that faunal changes are coincident with glacial/interglacial-scale deep-water circulation changes, even though our dataset is relatively small and the waters are barren of ostracods until mid-MIS (Marine Isotope Stage) 5. Krithe and Poseidonamicus were dominant during the Holocene interglacial period and the latter part of MIS 5, when this site was under the influence of North Atlantic Deep Water (NADW). Conversely, Henryhowella and Legitimocythere were dominant during glacial periods, when this site was in the path of Circumpolar Deep Water (CPDW). Three new species (Aversovalva brandaoae, Poseidonamicus hisayoae, and Krithe mazziniae) are described herein. This is the first report of Quaternary glacial/interglacial scale deep-sea ostracod faunal changes in the Southern and South Atlantic Oceans, a key region for understanding Quaternary climate and deep-water circulation, although the paucity of Quaternary ostracods in this region necessitates further research. © 2009 The Paleontological Society.en_HK
dc.languageengen_US
dc.relation.ispartofJournal of Paleontologyen_HK
dc.subjectDeep-sea Ostracodaen_HK
dc.subjectDeep-water circulationen_HK
dc.subjectPaleoecologyen_HK
dc.subjectQuaternaryen_HK
dc.subjectSouthern Oceanen_HK
dc.titleDeep-sea ostracods from the South Atlantic sector of the Southern ocean during the Last 370,000 yearsen_HK
dc.typeArticleen_HK
dc.identifier.emailYasuhara, M: yasuhara@hku.hken_HK
dc.identifier.authorityYasuhara, M=rp01474en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1666/08-149.1en_HK
dc.identifier.scopuseid_2-s2.0-70450231484en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-70450231484&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume83en_HK
dc.identifier.issue6en_HK
dc.identifier.spage914en_HK
dc.identifier.epage930en_HK
dc.identifier.isiWOS:000272012800005-
dc.identifier.scopusauthoridYasuhara, M=7102069020en_HK
dc.identifier.scopusauthoridCronin, TM=7102710042en_HK
dc.identifier.scopusauthoridHunt, G=8502893500en_HK
dc.identifier.scopusauthoridHodell, DA=7004762788en_HK

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