气候变化领域集成服务门户(CCPortal): Anthropogenic ocean warming and acidification recorded by Sr/Ca; Li/Mg; δ11B and B/Ca in Porites coral from the Kimberley region of northwestern Australia

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DOI	10.1016/j.palaeo.2019.04.033
	Anthropogenic ocean warming and acidification recorded by Sr/Ca; Li/Mg; δ11B and B/Ca in Porites coral from the Kimberley region of northwestern Australia
	Chen X.; D'Olivo J.P.; Wei G.; McCulloch M.
发表日期	2019
ISSN	0031-0182
起始页码	50
结束页码	59
卷号	528
英文摘要	The impact of climate changes on corals living in naturally extreme environments is poorly understood but crucial to longer-term sustainability of coral reefs. Here we report century-long temperature (Sr/Ca and Li/Mg)and calcifying fluid (CF)carbonate chemistry (δ11B and B/Ca)records for a long-lived (1919 to 2016)Porites coral from the high thermally variable Kimberley region of northwestern Australia. We investigate how increasing temperatures and ocean acidification are manifested in the carbonate chemistry of coral's CF and impacts of climate change on calcification. Using Sr/Ca and Li/Mg multiproxy we show that annual temperature in the nearshore Kimberley exhibited a gradual increase (0.009 ± 0.003 °C/yr)from the 1920s onward. However for the most recent years (2000–2015)more rapid summer warming (0.05 ± 0.01 °C/yr)are registered, indicative of intensified warming. Despite that, we find no significant trend for calcification rate of this coral over the past century, as well as ‘normal’ seasonal variability in coral's CF carbonate chemistry. Importantly, the coral's ability to concentrate inorganic carbon seems to be affected by recent warming, with reduced DICcf observed during 2008 to 2015, while the minimally-affected pHcf acts to compensate the decreases of DICcf with the calcification rate showing only slight decrease. Additionally, we also find that ocean acidification has clearly led to the long-term reduction in the pH of the CF. © 2019 Elsevier B.V.
英文关键词	Boron isotopes; Calcifying fluid; Carbonate chemistry; Coral calcification
语种	英语
scopus关键词	anthropogenic effect; boron; calcification; calcium; carbonate; coral record; fluid; lithium; magnesium; ocean acidification; sea surface temperature; strontium; Australia; Kimberley [Western Australia]; Western Australia; Anthozoa; Porites
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150935
作者单位	State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China; Oceans Graduate School and Oceans Institute, The University of Western Australia, Crawley, 6009, Australia; ARC Centre of Excellence for Coral Reef Studies, The University of Western Australia, Crawley, 6009, Australia
推荐引用方式 GB/T 7714	Chen X.,D'Olivo J.P.,Wei G.,et al. Anthropogenic ocean warming and acidification recorded by Sr/Ca; Li/Mg; δ11B and B/Ca in Porites coral from the Kimberley region of northwestern Australia[J],2019,528.
APA	Chen X.,D'Olivo J.P.,Wei G.,&McCulloch M..(2019).Anthropogenic ocean warming and acidification recorded by Sr/Ca; Li/Mg; δ11B and B/Ca in Porites coral from the Kimberley region of northwestern Australia.Palaeogeography, Palaeoclimatology, Palaeoecology,528.
MLA	Chen X.,et al."Anthropogenic ocean warming and acidification recorded by Sr/Ca; Li/Mg; δ11B and B/Ca in Porites coral from the Kimberley region of northwestern Australia".Palaeogeography, Palaeoclimatology, Palaeoecology 528(2019).