气候变化领域集成服务门户(CCPortal): Impact of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis)

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.843969
	Impact of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis)
	Gazeau; Frédéric; Alliouane; Samir; Bock; Christian; Bramanti; Lorenzo; López Correa; Matthias; Gentile; Miriam; Hirse; Timo; Pörtner; Hans-Otto; Ziveri; Patrizia
发布日期	2014-03-12
数据集类型	dataset
英文关键词	Acid-base regulation ; Animalia ; Benthic animals ; Benthos ; Calcification/Dissolution ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Growth/Morphology ; Laboratory experiment ; Mediterranean Sea ; Mollusca ; Mortality/Survival ; Mytilus galloprovincialis ; Other metabolic rates ; Respiration ; Single species ; Temperate ; Temperature
英文简介	In order to assess the effects of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis), specimens were reared in aquarium tanks and exposed to elevated conditions of temperature (+3°C) and acidity (-0.3 pH units) for a period of 10 months. The whole system comprised a factorial experimental design with 4 treatments (3 aquaria per treatment): control, lowered pH, elevated temperature, and lowered pH/elevated temperature. Mortality was estimated on a weekly basis and every 2 months, various biometrical parameters and physiological processes were measured: somatic and shell growth, metabolic rates and body fluid acid-base parameters. Mussels were highly sensitive to warming, with 100% mortality observed under elevated temperature at the end of our experiment in October. Mortality rates increased drastically in summer, when water temperature exceeded 25°C. In contrast, our results suggest that survival of this species will not be affected by a pH decrease of 0.3 in the Mediterranean Sea. Somatic and shell growth did not appear very sensitive to ocean acidification and warming during most of the experiment, but were reduced, after summer, in the lowered pH treatment. This was consistent with measured shell net dissolution and observed loss of periostracum, as well as uncompensated extracellular acidosis in the lowered pH treatment indicating a progressive insufficiency in acid-base regulation capacity. However, based on the present dataset, we cannot elucidate if these decreases in growth and regulation capacities after summer are a consequence of lower pH levels during that period or a consequence of a combined effect of acidification and warming. To summarize, while ocean acidification will potentially contribute to lower growth rates, especially in summer when mussels are exposed to sub-optimal conditions, ocean warming will likely pose more serious threats to Mediterranean mussels in this region in the coming decades.
空间范围	Latitude: 40.599720 * Longitude: 0.689170
时间范围	2011-11-01T00:00:00 - 2011-11-30T00:00:00
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/217163
推荐引用方式 GB/T 7714	Gazeau,Frédéric,Alliouane,et al. Impact of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis).2014-03-12.https://doi.org/10.1594/PANGAEA.843969.