{"xmlId":"20856","NOAAStudyId":"22670","studyName":"Havannah Island, Great Barrier Reef, Bimonthly Coral Linear Extension, Trace Elements and Boron Isotopes from 1989-2009 CE","doi":"https://doi.org/10.25921/c8sx-js16","uuid":"a067588b-a216-410a-873b-f30c63bbc867","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site."},"dataType":"CORALS AND SCLEROSPONGES","investigators":"D'Olivo, J.P.; McCulloch, M.T.","investigatorDetails":[{"firstName":"Juan Pablo","lastName":"D'Olivo","initials":"J.P.","orcId":"0000-0002-3291-7484"},{"firstName":"Malcolm","lastName":"McCulloch","initials":"M.T.","orcId":"0000-0003-1538-1558"}],"version":"1.0","funding":[{"fundingAgency":"Australian Research Council (ARC)","fundingGrant":"FL120100049"}],"studyNotes":"Trace element (Mg/Ca, Sr/Ca, U/Ca, Li/Mg, B/Ca and Li/Ca), boron isotopes and linear extension sampled along four sample paths\n      Provided Keywords: Thermal stress, calcifying fluid, biomineralization","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/22670","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-coral-22670.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-coral-22670.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/coral-sclerosponge","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"2017-09-18","entryId":"noaa-coral-22670","earliestYearBP":-39,"mostRecentYearBP":-59,"earliestYearCE":1989,"mostRecentYearCE":2009,"publication":[{"author":{"name":"DOlivo, J.P. and  M.T. McCulloch"},"pubYear":2017,"title":"Response of coral calcification and calcifying fluid composition to thermally induced bleaching stress","journal":"Scientific Reports","volume":"7","edition":null,"issue":null,"pages":null,"reportNumber":"2207","citation":"DOlivo, J.P. and  M.T. McCulloch. 2017. Response of coral calcification and calcifying fluid composition to thermally induced bleaching stress. Scientific Reports, 7, 2207. doi: 10.1038/s41598-017-02306-x","type":"publication","identifier":{"type":"doi","id":"10.1038/s41598-017-02306-x","url":"http://dx.doi.org/10.1038/s41598-017-02306-x"},"abstract":"Severe, global-scale thermal stress events like those of 1998 and 2016, are becoming more frequent and intense, potentially compromising the future of coral reefs. Here we report the effects of the 1998 bleaching event on coral calcification as well as the composition of the calcifying fluid (cf) from which corals precipitate their calcium carbonate skeletons. This was investigated by using the Sr/Ca, Li/Mg (temperature), and boron isotopes (d11B) and B/Ca (carbonate chemistry) proxies in a Porites sp. coral. Following the summer of 1998 the coral exhibited a prolonged period (~18 months) of reduced calcification (~60%) and a breakdown in the seasonality of the geochemical proxies. However, the maintenance of elevated dissolved inorganic carbon (DICcf; >×2 seawater) and pHcf (>8.3 compared to seawater ~8.0) even during severe stress of 1998 indicate that a minimum threshold of high aragonite saturation state (Ocf) of ~14 (~×4 seawater), is an essential pre-requisite for coral calcification. However, despite maintaining elevated levels of Ocf even under severe stress, coral growth is still impaired. We attribute this to reductions in either the effective active volume of calcification and/or DICcf as bleaching compromises the photosynthetically fixed carbon pool available to the coral.","pubRank":"1"}],"site":[{"NOAASiteId":"57456","siteName":"Havannah Island HAV09_3","siteCode":null,"mappable":"Y","locationName":"Continent>Australia/New Zealand>Australia","geo":{"geoType":"Feature","geometry":{"type":"POINT","coordinates":["-18.836043","146.525887"]},"properties":{"southernmostLatitude":"-18.836043","northernmostLatitude":"-18.836043","westernmostLongitude":"146.525887","easternmostLongitude":"146.525887","minElevationMeters":"-4","maxElevationMeters":"-4"}},"paleoData":[{"dataTableName":"HAV09_3 path-A 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