气候变化领域集成服务门户(CCPortal): OA sensitivity differs between populations of the Sydney Rock oyster

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.884093
	OA sensitivity differs between populations of the Sydney Rock oyster
	Stapp; Laura; Parker; Laura M; O'Connor; Wayne A; Bock; Christian; Ross; Pauline M; Pörtner; Hans-Otto; Lannig; Gisela
发布日期	2017-12-14
数据集类型	dataset
英文关键词	South Pacific
英文简介	Understanding mechanisms of intraspecific variation in resilience to environmental drivers is key to predict species' adaptive potential. Recent studies show a higher CO2 resilience of Sydney rock oysters selectively bred for increased growth and disease resistance ('selected oysters') compared to the wild population. We tested whether the higher resilience of selected oysters correlates with an increased ability to compensate for CO2-induced acid-base disturbances. After 7 weeks of exposure to elevated seawater PCO2 (1100 µatm), wild oysters had a lower extracellular pH (pHe = 7.54 ± 0.02 (control) vs. 7.40 ± 0.03 (elevated PCO2)) and increased hemolymph PCO2 whereas extracellular acid-base status of selected oysters remained unaffected. However, differing pHe values between oyster types were not linked to altered metabolic costs of major ion regulators (Na+/K+-ATPase, H+-ATPase and Na+/H+-exchanger) in gill and mantle tissues. Our findings suggest that selected oysters possess an increased systemic capacity to eliminate metabolic CO2, possibly through higher and energetically more efficient filtration rates and associated gas exchange. Thus, effective filtration and CO2 resilience might be positively correlated traits in oysters.
空间范围	Latitude: -32.700000 * Longitude: 152.050000
时间范围	2015-03-01T00:00:00 - 2015-03-31T00:00:00
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/215277
推荐引用方式 GB/T 7714	Stapp,Laura,Parker,et al. OA sensitivity differs between populations of the Sydney Rock oyster.2017-12-14.https://doi.org/10.1594/PANGAEA.884093.