气候变化领域集成服务门户(CCPortal): Uranium in larval shells as a barometer of molluscan ocean acidification exposure

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DOI	https://doi.org/10.1594/PANGAEA.836887
	Uranium in larval shells as a barometer of molluscan ocean acidification exposure
	Frieder; Christina A; Gonzalez; Jennifer P; Levin; Lisa A
发布日期	2014-10-20
数据集类型	dataset
英文关键词	Animalia ; Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Coast and continental shelf ; Laboratory experiment ; Mollusca ; Mytilus californianus ; Mytilus galloprovincialis ; North Pacific ; Pelagos ; Single species ; Temperate ; Zooplankton
英文简介	As the ocean undergoes acidification, marine organisms will become increasingly exposed to reduced pH, yet variability in many coastal settings complicates our ability to accurately estimate pH exposure for those organisms that are difficult to track. Here we present shell-based geochemical proxies that reflect pH exposure from laboratory and field settings in larvae of the mussels Mytilus californianus and M. galloprovincialis. Laboratory-based proxies were generated from shells precipitated at pH 7.51 to 8.04. U/Ca, Sr/Ca, and multielemental signatures represented as principal components varied with pH for both species. Of these, U/Ca was the best predictor of pH and did not vary with larval size, with semidiurnal pH fluctuations, or with oxygen concentration. Field applications of U/Ca were tested with mussel larvae reared in situ at both known and unknown pH conditions. Larval shells precipitated in a region of greater upwelling had higher U/Ca, and these U/Ca values corresponded well with the laboratory-derived U/Ca-pH proxy. Retention of the larval shell after settlement in molluscs allows use of this geochemical proxy to assess ocean acidification effects on marine populations.
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217308
推荐引用方式 GB/T 7714	Frieder,Christina A,Gonzalez,et al. Uranium in larval shells as a barometer of molluscan ocean acidification exposure.2014-10-20.https://doi.org/10.1594/PANGAEA.836887.