{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360004240191422464.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.5194/bg-8-2089-2011"}},{"identifier":{"@type":"URI","@value":"https://bg.copernicus.org/articles/8/2089/2011/bg-8-2089-2011.pdf"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Effects of ocean acidification on calcification of symbiont-bearing reef foraminifers"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>Abstract. Ocean acidification (decreases in carbonate ion concentration and pH) in response to rising atmospheric pCO2 is generally expected to reduce rates of calcification by reef calcifying organisms, with potentially severe implications for coral reef ecosystems. Large, algal symbiont-bearing benthic foraminifers, which are important primary and carbonate producers in coral reefs, produce high-Mg calcite shells, whose solubility can exceed that of aragonite produced by corals, making them the \"first responder\" in coral reefs to the decreasing carbonate saturation state of seawater. Here we report results of culture experiments performed to assess the effects of ongoing ocean acidification on the calcification of symbiont-bearing reef foraminifers using a high-precision pCO2 control system. Living clone individuals of three foraminiferal species (Baculogypsina sphaerulata, Calcarina gaudichaudii, and Amphisorus hemprichii) were subjected to seawater at five pCO2 levels from 260 to 970 μatm. Cultured individuals were maintained for about 12 weeks in an indoor flow-through system under constant water temperature, light intensity, and photoperiod. After the experiments, the shell diameter and weight of each cultured specimen were measured. Net calcification of B. sphaerulata and C. gaudichaudii, which secrete a hyaline shell and host diatom symbionts, increased under intermediate levels of pCO2 (580 and/or 770 μatm) and decreased at a higher pCO2 level (970 μatm). Net calcification of A. hemprichii, which secretes a porcelaneous shell and hosts dinoflagellate symbionts, tended to decrease at elevated pCO2. Observed different responses between hyaline and porcelaneous species are possibly caused by the relative importance of elevated pCO2, which induces CO2 fertilization effects by algal symbionts, versus associated changes in seawater carbonate chemistry, which decreases a carbonate concentration. Our findings suggest that ongoing ocean acidification might favor symbiont-bearing reef foraminifers with hyaline shells at intermediate pCO2 levels (580 to 770 μatm) but be unfavorable to those with either hyaline or porcelaneous shells at higher pCO2 levels (near 1000 μatm).</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380004240191422468","@type":"Researcher","foaf:name":[{"@value":"K. Fujita"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004240191422336","@type":"Researcher","foaf:name":[{"@value":"M. Hikami"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004240191422592","@type":"Researcher","foaf:name":[{"@value":"A. Suzuki"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004240191422466","@type":"Researcher","foaf:name":[{"@value":"A. Kuroyanagi"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004240191422467","@type":"Researcher","foaf:name":[{"@value":"K. Sakai"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004240191422464","@type":"Researcher","foaf:name":[{"@value":"H. Kawahata"}]},{"@id":"https://cir.nii.ac.jp/crid/1380004240191422465","@type":"Researcher","foaf:name":[{"@value":"Y. Nojiri"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"17264189"}],"prism:publicationName":[{"@value":"Biogeosciences"}],"dc:publisher":[{"@value":"Copernicus GmbH"}],"prism:publicationDate":"2011-08-04","prism:volume":"8","prism:number":"8","prism:startingPage":"2089","prism:endingPage":"2098"},"reviewed":"false","dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","dc:rights":["https://creativecommons.org/licenses/by/3.0/"],"url":[{"@id":"https://bg.copernicus.org/articles/8/2089/2011/bg-8-2089-2011.pdf"}],"createdAt":"2011-08-04","modifiedAt":"2025-02-15","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=QE1-996.5","dc:title":"QE1-996.5"},{"@id":"https://cir.nii.ac.jp/all?q=Ecology","dc:title":"Ecology"},{"@id":"https://cir.nii.ac.jp/all?q=Life","dc:title":"Life"},{"@id":"https://cir.nii.ac.jp/all?q=QH501-531","dc:title":"QH501-531"},{"@id":"https://cir.nii.ac.jp/all?q=Geology","dc:title":"Geology"},{"@id":"https://cir.nii.ac.jp/all?q=QH540-549.5","dc:title":"QH540-549.5"}],"project":[{"@id":"https://cir.nii.ac.jp/crid/1040282257047002624","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21340166"},{"@type":"JGN","@value":"JP21340166"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21340166/"}],"notation":[{"@language":"ja","@value":"造礁サンゴの骨格形成と環境情報を記録するメカニズムに関する研究"},{"@language":"en","@value":"Study on coral calcification and signal recording ability of coral climate proxies"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257080447488","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"22224009"},{"@type":"JGN","@value":"JP22224009"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22224009/"}],"notation":[{"@language":"ja","@value":"地球表層システムにおける海洋酸性化と生物大量絶滅"},{"@language":"en","@value":"Study on ocean acidification and mass extinction of biosphere in the earth surface's environmental system"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257096786048","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"22540483"},{"@type":"JGN","@value":"JP22540483"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540483/"}],"notation":[{"@language":"ja","@value":"前期ペルム紀スーパープルームと礁生物群集・海洋環境の応答に関する研究"},{"@language":"en","@value":"Response of reef community and oceanic environment to Early Permian superplume"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050285299931820288","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A simple role of coral-algal symbiosis in coral calcification based on multiple geochemical tracers"},{"@value":"The simple role of coral-algal symbiosis in coral calcification is based on multiple geochemical tracers"}]},{"@id":"https://cir.nii.ac.jp/crid/1360004232352607360","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Decalcification and survival of benthic foraminifera under the combined impacts of varying pH and salinity"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011143683904640","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Geochemical Consequences of Increased Atmospheric Carbon Dioxide on Coral 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benthic foraminifera calcite: results from culturing experiments with\n                    <i>Ammonia tepida</i>"}]},{"@id":"https://cir.nii.ac.jp/crid/1361981470638159488","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Middle Eocene Seawater pH and Atmospheric Carbon Dioxide Concentrations"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262944320187392","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Reassessing Foraminiferal Stable Isotope Geochemistry: Impact of the Oceanic Carbonate System (Experimental Results)"}]},{"@id":"https://cir.nii.ac.jp/crid/1362262945970076416","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Impact of the ocean carbonate chemistry on living foraminiferal shell weight: Comment on “Carbonate ion concentration in glacial‐age deep waters of the Caribbean Sea” by W. 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