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Ninety-two species were classified into eight clusters by using R-mode cluster analysis. Q-mode cluster analysis was used to distinguish five geographical zones, which were interpreted to represent the Tropical, Southern Subtropical, Northern Subtropical, Transitional, and Subarctic climatic zones. Species richness, diversity, and equitability are highest in the Tropical and Transitional Zones. We attempted to formulate new regression equations considering ecological information on the vertical distribution of radiolarian species. Transfer functions were derived from regression analysis of radiolarian assemblages to observed Sea Surface Temperature (SST) values. The transfer functions have a standard error of 1.16 °C in the estimate of winter SST, 0.81 °C in that of summer SST."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1381699993874333696","@type":"Researcher","foaf:name":[{"@value":"Shin-ichi Kamikuri"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993874333824","@type":"Researcher","foaf:name":[{"@value":"Isao Motoyama"}]},{"@id":"https://cir.nii.ac.jp/crid/1381699993874333697","@type":"Researcher","foaf:name":[{"@value":"Akira Nishimura"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"03778398"}],"prism:publicationName":[{"@value":"Marine Micropaleontology"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2008-10","prism:volume":"69","prism:number":"2","prism:startingPage":"151","prism:endingPage":"172"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/","https://www.elsevier.com/legal/tdmrep-license"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S0377839808000832?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S0377839808000832?httpAccept=text/plain"}],"createdAt":"2008-07-30","modifiedAt":"2025-10-07","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360004232101084672","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Millennial-scale variations of late Pleistocene radiolarian assemblages in the Bering Sea related to environments in shallow and deep waters"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232101151104","@type":"Article","resourceType":"学術雑誌論文(journal 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