气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and 109Cd, 57Co, and 134Cs bioconcentration by the European oyster (Ostrea edulis)

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.908246
	Seawater carbonate chemistry and 109Cd, 57Co, and 134Cs bioconcentration by the European oyster (Ostrea edulis)
	Sezer; Narin; Kılıç; Önder; Metian; Marc; Belivermis; Murat
发布日期	2019-11-11
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) ; Laboratory experiment ; Mediterranean Sea ; Mollusca ; Ostrea edulis ; Other studied parameter or process ; Single species ; Temperate
英文简介	The uptake and depuration kinetics of dissolved 109Cd, 57Co and 134Cs were determined experimentally in the European flat oyster Ostrea edulis (Linnaeus, 1758) under different pH conditions (i.e., 8.1, 7.8 and 7.5) for 59 days. Uptake and depuration rates were variable within these elements; no effects were observed under different pH conditions for the uptake biokinetics of 109Cd and 57Co and depuration of 109Cd and 134Cs in oyster. The uptake and depuration rate constants of 134Cs differed during the exposure phase between treatments, while the steady state concentration factors (CFss) were similar. The resulting Cs activity that was purged during short- and long-term depuration phases differed, while the remaining activities after thirty-nine days depuration phase (RA39d) were similar. Co-57 depuration was affected by pCO2 conditions: RA39d were found to be significantly higher in oysters reared in normocapnia (pCO2 = 350 μatm) compared to high pCO2 conditions. Co-57 tissue distribution did not differ among the variable pCO2 conditions, while 109Cd and 134Cs accumulated in soft tissue of oysters were found to be higher under the highest pCO2. Additionally, Cd, Co and Cs were stored differently in various compartments of the oyster cells, i.e. cellular debris, metal-rich granules (MRG) and metallothionein-like proteins (MTLP), respectively. The subcellular sequestration of the elements at the end of the depuration phase did not differ among pH treatments. These results suggest that bioconcentration and tissue/subcellular distribution are element-specific in the oyster, and the effects of higher pCO2 driven acidification and/or coastal acidification variably influence these processes.
时间范围	2017-04-24T00:00:00 - 2017-06-22T00:00:00
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/215724
推荐引用方式 GB/T 7714	Sezer,Narin,Kılıç,et al. Seawater carbonate chemistry and 109Cd, 57Co, and 134Cs bioconcentration by the European oyster (Ostrea edulis).2019-11-11.https://doi.org/10.1594/PANGAEA.908246.