气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and growth, physiological performance of the Manila clam Ruditapes philippinarum

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DOI	https://doi.org/10.1594/PANGAEA.902985
	Seawater carbonate chemistry and growth, physiological performance of the Manila clam Ruditapes philippinarum
	Zhao; Liqiang; Yang; Feng; Milano; Stefania; Han; Tiankun; Walliser; Eric Otto; Schöne; Bernd R
发布日期	2019-06-26
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) ; Growth/Morphology ; Laboratory experiment ; Mollusca ; North Pacific ; Other studied parameter or process ; Respiration ; Ruditapes philippinarum ; Single species ; Temperate
英文简介	Ocean acidification may interfere with the calcifying physiology of marine bivalves. Therefore, understanding their capacity for acclimation and adaption to low pH over multiple generations is crucial to make predictions about the fate of this economically and ecologically important fauna in an acidifying ocean. Transgenerational exposure to an acidification scenario projected by the end of the century (i.e., pH 7.7) has been shown to confer resilience to juvenile offspring of the Manila clam, Ruditapes philippinarum. However, whether, and to what extent, this resilience can persist into adulthood are unknown and the mechanisms driving transgenerational acclimation remain poorly understood. The present study takes observations of Manila clam juveniles further into the adult stage and observes similar transgenerational responses. Under acidified conditions, clams originating from parents reproductively exposed to the same level of low pH show a significantly faster shell growth rate, a higher condition index and a lower standard metabolic rate than those without prior history of transgenerational acclimation. Further analyses of stable carbon isotopic signatures in dissolved inorganic carbon of seawater, individual soft tissues and shells reveal that up to 61% of shell carbonate comes from metabolic carbon, suggesting that transgenerationally acclimated clams may preferentially extract internal metabolic carbon rather than transport external seawater inorganic carbon to build shells, the latter known to be energetically expensive. While a large metabolic carbon contribution (45%) is seen in non-acclimated clams, a significant reduction in the rate of shell growth indicates it might occur at the expense of other calcification-relevant processes. It therefore seems plausible that, following transgenerational acclimation, R. philippinarum can implement a less costly and more efficient energy-utilizing strategy to mitigate the impact of seawater acidification. Collectively, our findings indicate that marine bivalves are more resilient to ocean acidification projected for the end of the century than previously thought.
空间范围	Latitude: 39.070670 * Longitude: 122.246170
时间范围	2014-04-01T00:00:00 - 2014-04-30T00:00:00
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/215838
推荐引用方式 GB/T 7714	Zhao,Liqiang,Yang,et al. Seawater carbonate chemistry and growth, physiological performance of the Manila clam Ruditapes philippinarum.2019-06-26.https://doi.org/10.1594/PANGAEA.902985.