Positive and negative responses of coral calcification to elevated pCO(2): case studies of two coral species and the implications of their responses

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 中科院海洋生物资源可持续利用重点实验室

	Positive and negative responses of coral calcification to elevated pCO(2): case studies of two coral species and the implications of their responses
	Huang, H ; Yuan, XC ; Cai, WJ ; Zhang, CL ; Li, XB ; Liu, S
刊名	MARINE ECOLOGY PROGRESS SERIES
	2014
卷号	502 页码:145-156
关键词	Coral calcification Ocean acidification Dissolved inorganic carbon pH Modelling
ISSN号	0171-8630
通讯作者	xcyuan@scsio.ac.cn
中文摘要	Fragments of 2 coral species (Acropora nasuta and Pocillopora damicornis), collected from the South China Sea, were incubated for 94 d under controlled conditions of pCO(2) = 389, 700, and 1214 mu atm. Our incubation experiments showed that the net calcification rate of A. nasuta responded negatively to elevated pCO(2) in both short and mid-term incubations. In contrast, the net calcification rate of P. damicornis increased under elevated pCO(2) during the first 17 d, but then returned to background rates. Based on previous models, our modified models showed that the different responses of these 2 coral species depended on the dissolved inorganic carbon (DIC) and pH levels in coral calcifying fluid. In the studied models, the positive responses of coral calcification to higher pCO(2) could be explained by either low DIC due to a higher photosynthesis rate or a stronger H+ pump. If DIC in calcifying fluid is greatly reduced by photosynthesis, the de creased DIC in calcifying fluid may be benefited by enhanced external seawater CO2, which will partially offset the dissolution due to ocean acidification. Therefore, in addition to our experimental results, our model provides a theoretical basis showing how coral may respond negatively and positively to ocean acidification.
学科主题	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
收录类别	SCI
资助信息	NSFC Project [31370499, 41106107, 31370500, 41076096, 41106141, 40830850]; CAS program [XDA11020204]; Ocean Public Welfare Scientific Research Project [201005012-6]; NSF [EF-1041070]; [LMEB201001]
原文出处	INTER-RESEARCH
WOS记录号	WOS:000334670700011
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10490]
专题	南海海洋研究所_中科院海洋生物资源可持续利用重点实验室
推荐引用方式 GB/T 7714	Huang, H,Yuan, XC,Cai, WJ,et al. Positive and negative responses of coral calcification to elevated pCO(2): case studies of two coral species and the implications of their responses[J]. MARINE ECOLOGY PROGRESS SERIES,2014,502:145-156.
APA	Huang, H,Yuan, XC,Cai, WJ,Zhang, CL,Li, XB,&Liu, S.(2014).Positive and negative responses of coral calcification to elevated pCO(2): case studies of two coral species and the implications of their responses.MARINE ECOLOGY PROGRESS SERIES,502,145-156.
MLA	Huang, H,et al."Positive and negative responses of coral calcification to elevated pCO(2): case studies of two coral species and the implications of their responses".MARINE ECOLOGY PROGRESS SERIES 502(2014):145-156.