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Fate of Calcifying Tropical Symbiont-Bearing Large Benthic Foraminifera: Living Sands in a Changing Ocean

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dc.contributor Australian Institute Of Marine Science
dc.contributor Dept Phys & Earth Sci
dc.contributor Univ Sydney
dc.contributor University Of Ryukyus
dc.contributor Sch Biol Sci
dc.contributor Sch Med Sci
dc.contributor Univ Ryukyus
dc.contributor University Of Sydney
dc.contributor Australian Inst Marine Sci UTHICKE, SVEN DOO, STEVE S. FUJITA, KAZUHIKO BYRNE, MARIA 2014-08-20T04:37:54Z 2017-03-21T01:09:02Z 2017-03-21T01:09:02Z 2019-07-08T02:18:47Z 2017-03-21T01:09:02Z 2014-08-20T04:37:54Z 2014-08-20T04:37:54Z 2019-07-08T02:18:47Z 2014-06-01
dc.identifier.citation Doo SS, Fujita K, Byrne M, Uthicke S (2014) Fate of calcifying tropical symbiont-bearing large benthic foraminifera: living sands in a changing ocean. The Biological Bulletin 226(3): 169-186 en_US
dc.identifier.issn 0006-3185
dc.description.abstract Concerns regarding the response of calcifiers in future warmer and more acidic oceans have been raised in many studies. Tropical large benthic foraminifera (LBF) are important carbonate producers that reside in coral reefs worldwide. Similar to corals, these organisms live in symbioses with microalgae, which promote high calcification rates. The contribution of LBFs to reef sediments is under threat due to climate change. In this review, we synthesize research conducted on the effects of increased temperature and acidification on these organisms, and assess the potential impacts on reef carbonate production. A meta-analysis of all available experimental data (18 publications, 84 individual experiments) on the effects of ocean warming and acidification on LBF holobiont health was performed using log-transformed response ratios (LnRR) comparing presentday ambient and projected future scenarios. For the latter, we used Representative Concentration Pathway 8.5 from the Intergovernmental Panel on Climate Change, which projects changes of +4 degrees C and -0.3 pH units by the year 2100. Overall, a general negative trend on holobiont growth was observed across most species of LBFs in response to both stressors. The only exception was the hyaline species (porous CaCO3 test composed of interlocking microcrystals) that have diatom symbionts. Species in this group appear resilient to future ocean acidification scenarios. Differences in the response of LBF species to warming and acidifying oceans may be due to (1) differences in the carbonate species' use in formation of the CaCO3 skeleton (CO2 vs. CO32-), (2) varied responses of the symbiont types (diatom, dinoflagellate, rhodophyte) to stressors, or (3) the degree of nutritional dependence of the host to its symbiont. We also summarize current estimates of carbonate production by LBFs to provide a context of their contribution to reefs. Finally, we outline major gaps in knowledge in addressing the potential for LBF species persistence in a changing ocean.
dc.description.sponsorship This research was supported by grants from the Sir Keith Murdoch Fellowship (American Australian Association), PADI Foundation, Australian Coral Reef Society, Cushman Foundation (SD), and Great Barrier Reef Foundation Grant (MB, SD). SD was also supported by a PhD scholarship from the University of Sydney International Scholarship (USydIS). SU's contribution was supported by funding from the Australian Government's National Environmental Research Program. KF is supported by the International Research Hub Project for Climate Change and Coral Reef/Island Dynamics, University of the Ryukyus. Dr. R. Coleman (USyd) is thanked for his helpful advice on data analysis.
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher MBL Marine Biological Laboratory en_US
dc.relation.ispartof Null
dc.subject Great-barrier-reef
dc.subject Coral-reefs
dc.subject Biology
dc.subject Climate-change
dc.subject Thermal Tolerance
dc.subject Sediment Production
dc.subject Marine & Freshwater Biology
dc.subject Carbonate Production
dc.subject Inorganic Carbon
dc.subject Life Sciences & Biomedicine - Other Topics
dc.subject Marginopora-vertebralis
dc.subject Amphistegina Foraminifera
dc.subject Marine-invertebrates
dc.title Fate of Calcifying Tropical Symbiont-Bearing Large Benthic Foraminifera: Living Sands in a Changing Ocean
dc.type journal article en_US
dc.identifier.wos WOS:000341727200002

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