气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and corrosion and results of the mechanical tests of cidaroid (Eucidaris tribuloides) and a euechinoid (Tripneustes ventricosus) in laboratory experiment

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DOI	https://doi.org/10.1594/PANGAEA.875706
	Seawater carbonate chemistry and corrosion and results of the mechanical tests of cidaroid (Eucidaris tribuloides) and a euechinoid (Tripneustes ventricosus) in laboratory experiment
	Dery; Aurélie; Collard; Marie; Dubois; Philippe
发布日期	2017-05-25
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Calcification/Dissolution ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Echinodermata ; Eucidaris tribuloides ; Growth/Morphology ; Laboratory experiment ; North Atlantic ; Single species ; Tripneustes ventricosus ; Tropical
英文简介	Echinoderms are considered as particularly sensitive to ocean acidification (OA) as their skeleton is made of high-magnesium calcite, one of the most soluble forms of calcium carbonate. Recent studies have investigated effects of OA on the skeleton of "classical" sea urchins (euechinoids) but the impact of etching on skeleton mechanical properties is almost unknown. Furthermore, the integrity of the skeleton of cidaroids has never been assessed although their extracellular fluid is undersaturated with respect to their skeleton and the skeleton of their primary spines is in direct contact with seawater. In this study, we compared the dissolution of test plates and spines as well as the spine mechanical properties (two-points bending tests) in a cidaroid (Eucidaris tribuloides) and a euechinoid (Tripneustes ventricosus) submitted to a 5-weeks acidification experiment (pHT 8.1, 7.7, 7.4). Test plates of both species were not affected by dissolution. Spines of E. tribuloides showed no mechanical effects at pHSW-T 7.4 despite traces of corrosion on secondary spines. On the contrary, spines of the T. ventricosus were significantly etched at both pHSW-T 7.7 and 7.4 and their fracture force reduced by 16 to 35%, respectively. This increased brittleness is probably of little significance with regards to predation protection but has consequences in terms of energy allocation.
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/216485
推荐引用方式 GB/T 7714	Dery,Aurélie,Collard,et al. Seawater carbonate chemistry and corrosion and results of the mechanical tests of cidaroid (Eucidaris tribuloides) and a euechinoid (Tripneustes ventricosus) in laboratory experiment.2017-05-25.https://doi.org/10.1594/PANGAEA.875706.