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dc.contributor.authorBernstein, Whitney N.  Concept link
dc.coverage.spatialRed Sea
dc.coverage.spatialPuerto Rico
dc.coverage.spatialFlorida Keys
dc.date.accessioned2013-09-18T14:20:31Z
dc.date.available2013-09-18T14:20:31Z
dc.date.issued2013-09
dc.identifier.urihttps://hdl.handle.net/1912/6219
dc.descriptionSubmitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy at the Massachusetts Institute of Technology and the Woods Hole Oceanographic Institution September 2013en_US
dc.description.abstractPredicting the response of net community calcification (NCC) to ocean acidification (OA) and declining aragonite saturation state (Ωa) requires a thorough understanding of controls on NCC. The diurnal control of light and net community production (NCP) on NCC confounds the underlying control of Ωa on NCC and must be averaged out in order to predict the general response of NCC to OA. I did this by generating a general NCC-Ωa correlation based on data from 15 field and mesocosm studies around the globe. The general relationship agrees well with results from mesocosm experiments. This general relationship implies that NCC will transition from net calcification to net dissolution at a Ωa of 1.0 ± 0.6 and predicts that NCC will decline by 50% from 1880 to 2100, for a reef of any percent calcifier cover and short reef water residence time. NCC will also decline if percent calcifier cover declines, as evidenced by estimates of NCC in two Caribbean reefs having declined by an estimated 50-90% since 1880. The general NCC-Ωa relationship determined here, along with changes in percent calcifier cover, will be useful in predicting changes in NCC in response to OA and for refining models of reef water Ωa.en_US
dc.description.sponsorshipThis research was supported by WHOI Coastal Ocean Institute Student Research Award, MIT EAPS Student Research Award, WHOI Academic Program Office Ocean Ventures Fund, MIT Student Assistance Fund and MIT Houghton Fund. Additional research funds were provided by OCE1031288, WHOI Access to the Sea 27500040 and WHOI Access to the Sea-Special Call 25110104 to K.A.Hughen; NSF OCE0628406 and NOAA's Coral Reef Conservation Program Atlantic Ocean Acidification Test Bed project funding to C. Langdon; King Abdullah University of Science and Technology USA 00002 and KSA 00011 to S.J. Lentz; and King Abdullah University of Science and Technology to D. McCorkle. I was supported throughout this graduate program by the NSF Graduate Research Fellowship Program, WHOI Ocean Life Insitute, WHOI Academic Program Office funds, and NSF-DUE-1043405 (PI James Yoder).en_US
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherMassachusetts Institute of Technology and Woods Hole Oceanographic Institutionen_US
dc.relation.ispartofseriesWHOI Thesesen_US
dc.subjectOcean acidificationen_US
dc.subjectChemical oceanographyen_US
dc.titleVariations in coral reef net community calcification and aragonite saturation state on local and global scalesen_US
dc.typeThesisen_US
dc.identifier.doi10.1575/1912/6219


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