noaa-coral-22670 Havannah Island, Great Barrier Reef, Bimonthly Coral Linear Extension, Trace Elements and Boron Isotopes from 1989-2009 CE D'Olivo, J.P.; McCulloch, M.T. Havannah Island, Great Barrier Reef, Bimonthly Coral Linear Extension, Trace Elements and Boron Isotopes from 1989-2009 CE 2017-09-18 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22670 Investigator J.P. D'Olivo Investigator M.T. McCulloch earth science paleoclimate corals and sclerosponges magnesium/calcium,Porites sp.,null,mole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges delta 11B,Porites sp.,null,per mil SRM 951,null,corals and sclerosponges,interpolated,thermal ionization mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges lithium/magnesium,Porites sp.,null,mole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges lithium/calcium,Porites sp.,null,micromole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges age,null,null,year Common Era,null,corals and sclerosponges,null,null,N,null earth science paleoclimate corals and sclerosponges strontium/calcium,Porites sp.,null,mole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges boron/calcium,Porites sp.,null,mole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges uranium/calcium,Porites sp.,null,micromole per mole,null,corals and sclerosponges,interpolated,inductively-coupled plasma mass spectrometry,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges extension rate,Porites sp.,null,centimeter per year,null,corals and sclerosponges,interpolated,null,N,interpolated linearly to bimonthly time steps earth science paleoclimate corals and sclerosponges physical properties earth science paleoclimate corals and sclerosponges chemistry earth science paleoclimate corals and sclerosponges trace metals geoscientificInformation 1989 AD 2009 AD -39 cal yr BP -59 cal yr BP Complete -18.836043 -18.836043 146.525887 146.525887 -4 -4 Continent Australia/New Zealand Australia Havannah Island HAV09_3>LATITUDE -18.836043>LONGITUDE 146.525887 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

325 Broadway, E/NE31

Boulder CO 80305-3328 USA online ASCII D’Olivo, J.P. and M.T. McCulloch 2017 Scientific Reports 7 10.1038/s41598-017-02306-x

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. STUDY NOTES: 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 Provided Keywords: Thermal stress, calcifying fluid, biomineralization

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/d-olivo2017/d-olivo-hav09_3-c.txt NOAA Template File; HAV09_3 Path C data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/d-olivo2017/d-olivo-hav09_3-b.txt NOAA Template File; HAV09_3 Path B data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/d-olivo2017/d-olivo-hav09_3-a.txt NOAA Template File; HAV09_3 Path A data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/coral/west_pacific/great_barrier/d-olivo2017/d-olivo-hav09_3-d.txt NOAA Template File; HAV09_3 Path D data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11