气候变化领域集成服务门户(CCPortal): Physiological energetics of the thick shell mussel Mytilus coruscus exposed to seawater acidification and thermal stress

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.860454
	Physiological energetics of the thick shell mussel Mytilus coruscus exposed to seawater acidification and thermal stress
	Wang; Youji; Li; Lisha; Hu; Menghong; Lu; Weiqun
发布日期	2014-05-16
数据集类型	dataset
英文关键词	Animalia ; Behaviour ; Benthic animals ; Benthos ; Brackish waters ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Growth/Morphology ; Laboratory experiment ; Mollusca ; Mytilus coruscus ; North Pacific ; Other metabolic rates ; Respiration ; Single species ; Temperate ; Temperature
英文简介	Anthropogenic CO2 emissions have caused seawater temperature elevation and ocean acidification. In view of both phenomena are occurring simultaneously, their combined effects on marine species must be experimentally evaluated. The purpose of this study was to estimate the combined effects of seawater acidification and temperature increase on the energy budget of the thick shell mussel Mytilus coruscus. Juvenile mussels were exposed to six combined treatments with three pH levels (8.1, 7.7 and 7.3) * two temperatures (25 °C and 30 °C) for 14 d. We found that clearance rates (CRs), food absorption efficiencies (AEs), respiration rates (RRs), ammonium excretion rates (ER), scope for growth (SFG) and O:N ratios were significantly reduced by elevated temperature sometimes during the whole experiments. Low pH showed significant negative effects on RR and ER, and significantly increased O:N ratios, but showed almost no effects on CR, AE and SFG of M. coruscus. Nevertheless, their interactive effects were observed in RR, ER and O:N ratios. PCA revealed positive relationships among most physiological indicators, especially between SFG and CR under normal temperatures compared to high temperatures. PCA also showed that the high RR was closely correlated to an increasing ER with increasing pH levels. These results suggest that physiological energetics of juvenile M. coruscus are able to acclimate to CO2 acidification with a little physiological effect, but not increased temperatures. Therefore, the negative effects of a temperature increase could potentially impact the ecophysiological responses of M. coruscus and have significant ecological consequences, mainly in those habitats where this species is dominant in terms of abundance and biomass.
空间范围	Latitude: 30.550260 * Longitude: 121.833270
时间范围	2013-09-01T00:00:00 - 2013-09-30T00:00:00
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/216846
推荐引用方式 GB/T 7714	Wang,Youji,Li,et al. Physiological energetics of the thick shell mussel Mytilus coruscus exposed to seawater acidification and thermal stress.2014-05-16.https://doi.org/10.1594/PANGAEA.860454.