气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry, thickness and carbonate elemental composition of the test of juvenile sea urchins in a laboratory experiment

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DOI	https://doi.org/10.1594/PANGAEA.833328
	Seawater carbonate chemistry, thickness and carbonate elemental composition of the test of juvenile sea urchins in a laboratory experiment
	Asnaghi; Valentina; Mangialajo; Luisa; Gattuso; Jean-Pierre; Francour; Patrice; Privitera; Davide; Chiantore; Mariachiara
发布日期	2014-06-13
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Corallina elongata ; Cystoseira amentacea ; Dictyota dichotoma ; Echinodermata ; Growth/Morphology ; Laboratory experiment ; Mediterranean Sea ; Other ; Paracentrotus lividus ; Single species ; Temperate
英文简介	Continuous anthropogenic CO2 emissions to the atmosphere and uptake by the oceans will cause a reduction of seawater pH and saturation state (Omega) of CaCO3 minerals from which marine calcifiers build their shells and skeletons. Sea urchins use the most soluble form of calcium carbonate, high-magnesium calcite, to build their skeleton, spines and grazing apparatus. In order to highlight the effects of increased pCO2 on the test thickness and carbonate elemental composition of juvenile sea urchins and potential differences in their responses linked to the diet, we performed a laboratory experiment on juvenile Paracentrotus lividus, grazing on calcifying (Corallina elongata) and non-calcifying (Cystoseira amentacea, Dictyota dichotoma) macroalgae, under different pH (corresponding to pCO2 values of 390, 550, 750 and 1000 µatm). Results highlighted the importance of the diet in determining sea urchin size irrespectively of the pCO2 level, and the relevance of macroalgal diet in modulating urchin Mg/Ca ratio. The present study provides relevant clues both in terms of the mechanism of mineral incorporation and in terms of bottom-up processes (algal diet) affecting top-down ones (fish predation) in rocky subtidal communities
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/217489
推荐引用方式 GB/T 7714	Asnaghi,Valentina,Mangialajo,et al. Seawater carbonate chemistry, thickness and carbonate elemental composition of the test of juvenile sea urchins in a laboratory experiment.2014-06-13.https://doi.org/10.1594/PANGAEA.833328.