气候变化领域集成服务门户(CCPortal): Calcareous nannoplankton response to surface-water acidification around oceanic anoxic event 1a

CCPortal

DOI	10.1126/science.1188886
	Calcareous nannoplankton response to surface-water acidification around oceanic anoxic event 1a
	Erba E.; Bottini C.; Weissert H.J.; Keller C.E.
发表日期	2010
ISSN	0036-8075
起始页码	428
结束页码	432
卷号	329 期号:5990
英文摘要	Ocean acidification induced by atmospheric CO2 may be a major threat to marine ecosystems, particularly to calcareous nannoplankton. We show that, during the Aptian (∼120 million years ago) Oceanic Anoxic Event 1a, which resulted from a massive addition of volcanic CO2, the morphological features of calcareous nannofossils traced the biological response to acidified surface waters. We observe the demise of heavily calcified nannoconids and reduced calcite paleofluxes at the beginning of a pre-anoxia calcification crisis. Ephemeral coccolith dwarfism and malformation represent species-specific adjustments to survive lower pH, whereas later, abundance peaks indicate intermittent alkalinity recovery. Deepwater acidification occurred with a delay of 25,000 to 30,000 years. After the dissolution climax, nannoplankton and carbonate recovery developed over ∼160,000 years under persisting global dysoxia-anoxia.
英文关键词	calcium carbonate; carbon dioxide; carbonic acid; surface water; acidification; anoxia; carbon dioxide; coccolith; environmental disturbance; marine ecosystem; marine pollution; nanofossil; nanoplankton; pH; survival; acidification; alkalinity; animal experiment; Aptian; article; calcareous nannoplankton; carbon source; coccolith; convalescence; dissolution; ephemeral species; greenhouse gas; nannofossil; nonhuman; paleoceanography; pH; plankton; priority journal; sea; species diversity; surface property; volcano; Adaptation, Physiological; Atmosphere; Calcification, Physiologic; Calcium Carbonate; Carbon Dioxide; Ecosystem; Fossils; Geologic Sediments; Hydrogen-Ion Concentration; Oceans and Seas; Oxygen; Plankton; Population Dynamics; Seawater; Time
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/243621
作者单位	Dipartimento di Scienze Della Terra Ardito Desio, Università degli Studi di Milano, via Mangiagalli 34, 20133 Milano, Italy; Department of Earth Sciences, Geology, Eidgenössische Technische Hochschule (ETH)-Zentrum, Sonneggstrasse 5, CH-8092 Zürich, Switzerland
推荐引用方式 GB/T 7714	Erba E.,Bottini C.,Weissert H.J.,et al. Calcareous nannoplankton response to surface-water acidification around oceanic anoxic event 1a[J],2010,329(5990).
APA	Erba E.,Bottini C.,Weissert H.J.,&Keller C.E..(2010).Calcareous nannoplankton response to surface-water acidification around oceanic anoxic event 1a.Science,329(5990).
MLA	Erba E.,et al."Calcareous nannoplankton response to surface-water acidification around oceanic anoxic event 1a".Science 329.5990(2010).