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Article: Impact of eutrophication on shallow marine benthic foraminifers over the last 150 years in Osaka Bay, Japan

TitleImpact of eutrophication on shallow marine benthic foraminifers over the last 150 years in Osaka Bay, Japan
Authors
Keywordsbenthic foraminifera
eutrophication
hypoxia
Japan
Osaka Bay
pollution
Issue Date2006
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/marmicro
Citation
Marine Micropaleontology, 2006, v. 60 n. 4, p. 258-268 How to Cite?
AbstractHigh-resolution foraminiferal analysis was conducted on a short sediment core from the inner part of Osaka Bay, Japan. Changes in foraminiferal assemblages were associated with eutrophication, bottom water hypoxia, and changes in red tide-causing algae. Before the 1920s, the calcareous species Ammonia beccarii, and the agglutinated species Eggerella advena and Trochammina hadai were rare, but calcareous foraminifers in general were abundant. Between the 1920s and 1940s, calcareous foraminifers decreased abruptly in abundance, while A. beccarii, E. advena and T. hadai increased in abundance. This faunal change corresponded in time to an increase in nutrients flowing in through the Yodo River, and bottom water hypoxia related to eutrophication. In the 1960s and 1970s, A. beccarii, E. advena and T. hadai further increased in abundance to become dominant, and many calcareous foraminifers nearly disappeared, corresponding to increasing bottom water hypoxia related to the rapid increase in discharged nutrients during the high economic growth period from 1953 to 1971. After the 1990s, A. beccarii decreased rapidly in abundance and E. advena and Uvigerinella glabra increased in abundance. The main components of red tide-causing algae changed from dinoflagellates to diatoms in the 1980s through 1990s, thus there was a change in the food supply to the benthos, which may have caused the increase in abundance of E. advena and U. glabra. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/132795
ISSN
2015 Impact Factor: 1.859
2015 SCImago Journal Rankings: 1.100
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTsujimoto, Aen_HK
dc.contributor.authorNomura, Ren_HK
dc.contributor.authorYasuhara, Men_HK
dc.contributor.authorYamazaki, Hen_HK
dc.contributor.authorYoshikawa, Sen_HK
dc.date.accessioned2011-03-28T09:29:08Z-
dc.date.available2011-03-28T09:29:08Z-
dc.date.issued2006en_HK
dc.identifier.citationMarine Micropaleontology, 2006, v. 60 n. 4, p. 258-268en_HK
dc.identifier.issn0377-8398en_HK
dc.identifier.urihttp://hdl.handle.net/10722/132795-
dc.description.abstractHigh-resolution foraminiferal analysis was conducted on a short sediment core from the inner part of Osaka Bay, Japan. Changes in foraminiferal assemblages were associated with eutrophication, bottom water hypoxia, and changes in red tide-causing algae. Before the 1920s, the calcareous species Ammonia beccarii, and the agglutinated species Eggerella advena and Trochammina hadai were rare, but calcareous foraminifers in general were abundant. Between the 1920s and 1940s, calcareous foraminifers decreased abruptly in abundance, while A. beccarii, E. advena and T. hadai increased in abundance. This faunal change corresponded in time to an increase in nutrients flowing in through the Yodo River, and bottom water hypoxia related to eutrophication. In the 1960s and 1970s, A. beccarii, E. advena and T. hadai further increased in abundance to become dominant, and many calcareous foraminifers nearly disappeared, corresponding to increasing bottom water hypoxia related to the rapid increase in discharged nutrients during the high economic growth period from 1953 to 1971. After the 1990s, A. beccarii decreased rapidly in abundance and E. advena and Uvigerinella glabra increased in abundance. The main components of red tide-causing algae changed from dinoflagellates to diatoms in the 1980s through 1990s, thus there was a change in the food supply to the benthos, which may have caused the increase in abundance of E. advena and U. glabra. © 2006 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.subjecteutrophicationen_HK
dc.subjecthypoxiaen_HK
dc.subjectJapanen_HK
dc.subjectOsaka Bayen_HK
dc.subjectpollutionen_HK
dc.titleImpact of eutrophication on shallow marine benthic foraminifers over the last 150 years in 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.2006.06.001en_HK
dc.identifier.scopuseid_2-s2.0-33748181600en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33748181600&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume60en_HK
dc.identifier.issue4en_HK
dc.identifier.spage258en_HK
dc.identifier.epage268en_HK
dc.identifier.isiWOS:000240632100002-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridTsujimoto, A=14326222600en_HK
dc.identifier.scopusauthoridNomura, R=7101883865en_HK
dc.identifier.scopusauthoridYasuhara, M=7102069020en_HK
dc.identifier.scopusauthoridYamazaki, H=7401919978en_HK
dc.identifier.scopusauthoridYoshikawa, S=7202952155en_HK

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