气候变化领域集成服务门户(CCPortal): Seagrass Posidonia oceanica diel pH fluctuations reduce the mortality of epiphytic forams under experimental ocean acidification

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DOI	10.1016/j.marpolbul.2019.06.011
	Seagrass Posidonia oceanica diel pH fluctuations reduce the mortality of epiphytic forams under experimental ocean acidification
	Ramajo L.; Lagos N.A.; Duarte C.M.
发表日期	2019
ISSN	0025326X
起始页码	247
结束页码	254
卷号	146
英文摘要	It is hypothesized that pH fluctuations produced by seagrasses metabolism may confer marine calcifiers resistance to ocean acidification. Here, we tested this thesis by comparing the net population growth rate (NPGR) of a foraminifer species (Rosalina sp.) epiphytic of Mediterranean seagrass (Posidonia oceanica) to average current and projected pH scenarios under either stable conditions or diel fluctuations in pH of 0.3 units; variations similar to that experienced in their habitat. No significant differences were found in NPGRs between the fluctuating and stable pH treatments at current pH levels. NPGRs in treatments where pH fluctuated did not present significant differences to the treatment with high and stable pH conditions. In contrast, foraminifers exposed to stable low pH regimes experienced a steep decline in NPGR. These results suggest that diel pH fluctuations generated by P. oceanica photosynthetic activity could confer resistance to ocean acidification to Rosalina sp. © 2019 Elsevier Ltd
英文关键词	Foraminifera; Ocean acidification; pH heterogeneity; Regional impacts; Resistance; Seagrass metabolism
语种	英语
scopus关键词	Electric resistance; Metabolism; Oceanography; Plants (botany); Population statistics; Average currents; Foraminifera; Ocean acidifications; Photosynthetic activity; Population growth rates; Posidonia oceanica; Regional impacts; Seagrasses; Acidification; experimental study; foraminifera; heterogeneity; metabolism; mortality; ocean acidification; pH; seagrass; acidification; article; foraminifer; growth rate; habitat; mortality; nonhuman; photosynthesis; population growth; Posidonia oceanica; seagrass; Alismatales; chemistry; ecosystem; ecotoxicology; foraminifer; metabolism; pH; photosynthesis; physiology; procedures; Foraminifera; Posidonia oceanica; Rosalina; carbon; sea water; Alismatales; Carbon; Ecosystem; Ecotoxicology; Foraminifera; Hydrogen-Ion Concentration; Photosynthesis; Seawater
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149726
作者单位	Centro de Estudios Avazados en Zonas Áridas (CEAZA), Coquimbo, Chile; Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Universidad Santo Tomás, Santiago, Chile; King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal23955-6900, Saudi Arabia
推荐引用方式 GB/T 7714	Ramajo L.,Lagos N.A.,Duarte C.M.. Seagrass Posidonia oceanica diel pH fluctuations reduce the mortality of epiphytic forams under experimental ocean acidification[J],2019,146.
APA	Ramajo L.,Lagos N.A.,&Duarte C.M..(2019).Seagrass Posidonia oceanica diel pH fluctuations reduce the mortality of epiphytic forams under experimental ocean acidification.Marine Pollution Bulletin,146.
MLA	Ramajo L.,et al."Seagrass Posidonia oceanica diel pH fluctuations reduce the mortality of epiphytic forams under experimental ocean acidification".Marine Pollution Bulletin 146(2019).