气候变化领域集成服务门户(CCPortal): Effects of year-long exposure to elevated pCO2 on the metabolism of back reef and fore reef communities

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DOI	10.1002/lno.12504
	Effects of year-long exposure to elevated pCO2 on the metabolism of back reef and fore reef communities
	Edmunds, Peter J.; Doo, Steve S.; Carpenter, Robert C.
发表日期	2024
ISSN	0024-3590
EISSN	1939-5590
起始页码	69
结束页码	3
卷号	69 期号:3
英文摘要	The implications of ocean acidification are acute for calcifying organisms, notably tropical reef corals, for which accretion generally is depressed and dissolution enhanced at reduced seawater pH. We describe year-long experiments in which back reef and fore reef (17-m depth) communities from Moorea, French Polynesia, were incubated outdoors under pCO(2) regimes reflecting endpoints of representative concentration pathways (RCPs) expected by the end the century. Incubations were completed in three to four flumes (5.0 x 0.3 m, 500 L) in which seawater was refreshed and circulated at 0.1 m s(-1), and the response of the communities was evaluated monthly by measurements of net community calcification (NCC) and net community productivity (NCP). For both communities, NCC (but not NCP) was affected by treatments and time, with NCC declining with increasing pCO(2), and for the fore reef, becoming negative (i.e., dissolution was occurring) at the highest pCO(2) (1067-1433 mu atm, RCP8.5). There was scant evidence of community adjustment to reduce the negative effects of ocean acidification, and inhibition of NCC intensified in the back reef as the abundance of massive Porites spp. declined. These results highlight the risks of dissolution under ocean acidification for coral reefs and suggest these effects will be most acute in fore reef habitats. Without signs of amelioration of the negative effects of ocean acidification during year-long experiments, it is reasonable to expect that the future of coral reefs in acidic seas can be predicted from their current known susceptibility to ocean acidification.
语种	英语
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:001148028400001
来源期刊	LIMNOLOGY AND OCEANOGRAPHY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/299338
作者单位	California State University System; California State University Northridge; University of Hawaii System; University Hawaii Hilo
推荐引用方式 GB/T 7714	Edmunds, Peter J.,Doo, Steve S.,Carpenter, Robert C.. Effects of year-long exposure to elevated pCO2 on the metabolism of back reef and fore reef communities[J],2024,69(3).
APA	Edmunds, Peter J.,Doo, Steve S.,&Carpenter, Robert C..(2024).Effects of year-long exposure to elevated pCO2 on the metabolism of back reef and fore reef communities.LIMNOLOGY AND OCEANOGRAPHY,69(3).
MLA	Edmunds, Peter J.,et al."Effects of year-long exposure to elevated pCO2 on the metabolism of back reef and fore reef communities".LIMNOLOGY AND OCEANOGRAPHY 69.3(2024).