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Article: Recent Ostracoda from the Northeastern part of Osaka Bay, Southwestern Japan

TitleRecent Ostracoda from the Northeastern part of Osaka Bay, Southwestern Japan
Authors
KeywordsBathymetry
Dissolved Oxygen
Japan
Osaka Bay
Ostracoda
Issue Date2001
Citation
Journal Of Geosciences, 2001 n. 44, p. 57-95 How to Cite?
AbstractOstracodes from Osaka Bay, southwestern Japan, were quantitatively studied in order to examine the relationships between environmental factors and species distribution. At least 109 species belonging to 43 genera were identified from 31 surface sediment samples. On the basis of Q-mode cluster analysis, four biotopes (A, B, C and D) are recognized. Characteristic species of each biotope are as follows: A (central bay at 17.2-37.2 m water depth), Trachyleberis scabrocuneata, Cytheropteron miurense, Kobayashiina donghaiensis, Schizocythere kishinouyei and Krithe japonica; B (inner part of the bay at 16.3-21. 1 m water depth), Bicornucythere bisanensis (form A), Bicornucythere bisanensis (form M), Cytheromorpha acupunctata, Loxoconcha viva and Nipponocythere bicarinata; C (innermost part of the bay at 9.2-15.9 m water depth), B. bisanensis (form A), Loxoconcha tosaensis and Spinileberis quadriaculeata; D (inner part of the bay at 12.6 m water depth), C. acupunctata. These results suggest that species distribution is controlled by bathymetry. High abundance and high species diversities are found in the westernmost area. In contrast, low abundance and low species diversities are observed in the eastern area, where water masses with low dissolved oxygen content spread, especially in the summer. It is shown that the tidal current and the dissolved oxygen contents strongly influence abundance and species diversity of ostracodes in Osaka Bay.
Persistent Identifierhttp://hdl.handle.net/10722/178727
ISSN
2015 SCImago Journal Rankings: 0.392
References

 

DC FieldValueLanguage
dc.contributor.authorMoriaki, Yen_US
dc.contributor.authorToshiaki, Ien_US
dc.date.accessioned2012-12-19T09:49:21Z-
dc.date.available2012-12-19T09:49:21Z-
dc.date.issued2001en_US
dc.identifier.citationJournal Of Geosciences, 2001 n. 44, p. 57-95en_US
dc.identifier.issn0449-2560en_US
dc.identifier.urihttp://hdl.handle.net/10722/178727-
dc.description.abstractOstracodes from Osaka Bay, southwestern Japan, were quantitatively studied in order to examine the relationships between environmental factors and species distribution. At least 109 species belonging to 43 genera were identified from 31 surface sediment samples. On the basis of Q-mode cluster analysis, four biotopes (A, B, C and D) are recognized. Characteristic species of each biotope are as follows: A (central bay at 17.2-37.2 m water depth), Trachyleberis scabrocuneata, Cytheropteron miurense, Kobayashiina donghaiensis, Schizocythere kishinouyei and Krithe japonica; B (inner part of the bay at 16.3-21. 1 m water depth), Bicornucythere bisanensis (form A), Bicornucythere bisanensis (form M), Cytheromorpha acupunctata, Loxoconcha viva and Nipponocythere bicarinata; C (innermost part of the bay at 9.2-15.9 m water depth), B. bisanensis (form A), Loxoconcha tosaensis and Spinileberis quadriaculeata; D (inner part of the bay at 12.6 m water depth), C. acupunctata. These results suggest that species distribution is controlled by bathymetry. High abundance and high species diversities are found in the westernmost area. In contrast, low abundance and low species diversities are observed in the eastern area, where water masses with low dissolved oxygen content spread, especially in the summer. It is shown that the tidal current and the dissolved oxygen contents strongly influence abundance and species diversity of ostracodes in Osaka Bay.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Geosciencesen_US
dc.subjectBathymetryen_US
dc.subjectDissolved Oxygenen_US
dc.subjectJapanen_US
dc.subjectOsaka Bayen_US
dc.subjectOstracodaen_US
dc.titleRecent Ostracoda from the Northeastern part of Osaka Bay, Southwestern Japanen_US
dc.typeArticleen_US
dc.identifier.emailMoriaki, Y: yasuhara@hku.hken_US
dc.identifier.authorityMoriaki, Y=rp01474en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0034816612en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0034816612&selection=ref&src=s&origin=recordpageen_US
dc.identifier.issue44en_US
dc.identifier.spage57en_US
dc.identifier.epage95en_US
dc.publisher.placeJapanen_US
dc.identifier.scopusauthoridMoriaki, Y=7102069020en_US
dc.identifier.scopusauthoridToshiaki, I=6507349590en_US

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