气候变化领域集成服务门户(CCPortal): Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration

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DOI	https://doi.org/10.1594/PANGAEA.873540
	Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration
	Sui; Yanming; Hu; Menghong; Shang; Yueyong; Wu; FangLi; Huang; Xizhi; Dupont; Sam; Storch; Daniela; Pörtner; Hans-Otto; Li; Jiale; Lu; Weiqun; Wang; Youji
发布日期	2017-03-15
数据集类型	dataset
英文关键词	Animalia ; Benthic animals ; Benthos ; Brackish waters ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Laboratory experiment ; Mollusca ; Mytilus coruscus ; North Pacific ; Other metabolic rates ; Oxygen ; Single species ; Temperate
英文简介	Ocean acidification (OA) and hypoxic events are increasing worldwide problems, their interactive effects have not been well clarified, although their co-occurrence is prevalent. The East China Sea (the Yangtze River estuary area) suffers from not only coastal hypoxia but also pH fluctuation, representing an ideal study site to explore the combined effect of OA and hypoxia on marine bivalves. We experimentally evaluated the antioxidant response of the mussel Mytilus coruscus exposed to three pH levels (8.1, 7.7 and 7.3) at two dissolved oxygen (DO) levels (2.0 mg/L and 6.0 mg/L) for 72h. Activities of superoxide dismutase, catalase, glutathione peroxidase, acid phosphatase, and alkaline phosphatase and levels of malondialdehyde were measured in gills and hemolymph. All enzymatic activities in hemolymph and gills followed a similar pattern throughout the experiment duration. Generally, low DO showed greater effects on enzyme activities than elevated CO2. Significant interactions between DO, pH and time were only observed at superoxide dismutase and catalase in both tissues. PCA revealed positive relationships between most enzyme activities in both gills and hemolymph with the exception of alkaline phosphatase activity and the level of malondialdehyde in the hemolymph. Overall, our results suggested that decreased pH and low DO induced similar antioxidant responses in the hard shelled mussel, and showed an additive effect on most enzyme activities. The evaluation of multiple environmental stressors, a more realistic scenario than single ones, is crucial to predict the effect of future global changes on coastal species and our results supply some insights on the potential combined effects of reduced pH and DO on marine bivalves.
空间范围	Latitude: 30.550260 * Longitude: 121.833270
时间范围	2015-04-01T00:00:00 - 2015-04-30T00:00:00
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/216558
推荐引用方式 GB/T 7714	Sui,Yanming,Hu,et al. Antioxidant response of the hard shelled mussel Mytilus coruscus exposed to reduced pH and oxygen concentration.2017-03-15.https://doi.org/10.1594/PANGAEA.873540.