File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Development of modern benthic ecosystems in eutrophic coastal oceans: The foraminiferal record over the last 200 years, Osaka Bay, Japan

TitleDevelopment of modern benthic ecosystems in eutrophic coastal oceans: The foraminiferal record over the last 200 years, Osaka Bay, Japan
Authors
KeywordsBenthic foraminifera
Ecosystem
Eutrophication
Hypoxia
Osaka Bay
Species diversity
Issue Date2008
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/marmicro
Citation
Marine Micropaleontology, 2008, v. 69 n. 2, p. 225-239 How to Cite?
AbstractThe ecosystem dynamics of a modern benthic community in Osaka Bay was studied by analyzing sediment cores and fossil foraminifera deposited during the past 200 years. The results suggest that the high-density/low-diversity assemblage has appeared in the early 1900s, coinciding with the eutrophication of the bay resulting from the Japanese industrial revolution. This assemblage proliferated during the period 1960 to 1970 when the eutrophication and bottom-water hypoxia were most pronounced. The development of the assemblage has been characterized by an increase in the relative and absolute abundance of eutrophication-tolerant species (Ammonia beccarii, Eggerella advena, and Trochammina hadai) and a decrease in many other foraminiferal species, such as Ammonia tepida, Elphidium, Miliolinella subrotunda, and Valvulineria hamanakoensis, that are unable to tolerate low-oxygen conditions. Approximately thirty years after the imposition of discharge restrictions in the 1970s, this assemblage continues to predominate in the inner part of the bay, and E. advena is currently found across the entire bay. These records make a significant contribution to understanding the long-term relationship between anthropogenic impact and ecosystem change. © 2008 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/132790
ISSN
2015 Impact Factor: 1.859
2015 SCImago Journal Rankings: 1.100
ISI Accession Number ID
Funding AgencyGrant Number
Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan05950
10896
Funding Information:

We would like to thank Muneki Mitamura for helpful advice, and Hisayo Okahashi, Miho Ishitake, and Shinya Inano for their assistance in sampling and sample preparation. We also thank Shin-ichi Sakai for the sampling of core OBY. Reviews by Lisa Osterman and Thomas Cronin, and editing by Ellen Thomas greatly improved the manuscript. This work was partially supported by Grants-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology of Japan (05950 to M. Yasuhara and 10896 to A. Tsujimoto).

References

 

DC FieldValueLanguage
dc.contributor.authorTsujimoto, Aen_HK
dc.contributor.authorYasuhara, Men_HK
dc.contributor.authorNomura, Ren_HK
dc.contributor.authorYamazaki, Hen_HK
dc.contributor.authorSampei, Yen_HK
dc.contributor.authorHirose, Ken_HK
dc.contributor.authorYoshikawa, Sen_HK
dc.date.accessioned2011-03-28T09:29:06Z-
dc.date.available2011-03-28T09:29:06Z-
dc.date.issued2008en_HK
dc.identifier.citationMarine Micropaleontology, 2008, v. 69 n. 2, p. 225-239en_HK
dc.identifier.issn0377-8398en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132790-
dc.description.abstractThe ecosystem dynamics of a modern benthic community in Osaka Bay was studied by analyzing sediment cores and fossil foraminifera deposited during the past 200 years. The results suggest that the high-density/low-diversity assemblage has appeared in the early 1900s, coinciding with the eutrophication of the bay resulting from the Japanese industrial revolution. This assemblage proliferated during the period 1960 to 1970 when the eutrophication and bottom-water hypoxia were most pronounced. The development of the assemblage has been characterized by an increase in the relative and absolute abundance of eutrophication-tolerant species (Ammonia beccarii, Eggerella advena, and Trochammina hadai) and a decrease in many other foraminiferal species, such as Ammonia tepida, Elphidium, Miliolinella subrotunda, and Valvulineria hamanakoensis, that are unable to tolerate low-oxygen conditions. Approximately thirty years after the imposition of discharge restrictions in the 1970s, this assemblage continues to predominate in the inner part of the bay, and E. advena is currently found across the entire bay. These records make a significant contribution to understanding the long-term relationship between anthropogenic impact and ecosystem change. © 2008 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/marmicroen_HK
dc.relation.ispartofMarine Micropaleontologyen_HK
dc.subjectBenthic foraminiferaen_HK
dc.subjectEcosystemen_HK
dc.subjectEutrophicationen_HK
dc.subjectHypoxiaen_HK
dc.subjectOsaka Bayen_HK
dc.subjectSpecies diversityen_HK
dc.titleDevelopment of modern benthic ecosystems in eutrophic coastal oceans: The foraminiferal record over the last 200 years, Osaka Bay, Japanen_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.doi10.1016/j.marmicro.2008.08.001en_HK
dc.identifier.scopuseid_2-s2.0-53249142114en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-53249142114&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume69en_HK
dc.identifier.issue2en_HK
dc.identifier.spage225en_HK
dc.identifier.epage239en_HK
dc.identifier.isiWOS:000260954500009-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridTsujimoto, A=14326222600en_HK
dc.identifier.scopusauthoridYasuhara, M=7102069020en_HK
dc.identifier.scopusauthoridNomura, R=7101883865en_HK
dc.identifier.scopusauthoridYamazaki, H=7401919978en_HK
dc.identifier.scopusauthoridSampei, Y=6602920632en_HK
dc.identifier.scopusauthoridHirose, K=8656424700en_HK
dc.identifier.scopusauthoridYoshikawa, S=7202952155en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats