气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry, survival rate, shell size, calcification rate of the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in a laboratory experiment

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DOI	https://doi.org/10.1594/PANGAEA.830908
	Seawater carbonate chemistry, survival rate, shell size, calcification rate of the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in a laboratory experiment
	Manno; C; Morata; N; Bellerby; Richard G J
发布日期	2012-03-25
数据集类型	dataset
英文关键词	Arctic ; Bottles or small containers/Aquaria ( 20 L) ; Calcification/Dissolution ; Chromista ; Foraminifera ; Growth/Morphology ; Heterotrophic prokaryotes ; Laboratory experiment ; Mortality/Survival ; Neogloboquadrina pachyderma ; Open ocean ; Pelagos ; Polar ; Single species
英文简介	The present study investigated the effects of ocean acidification and temperature increase on Neogloboquadrina pachyderma (sinistral), the dominant planktonic foraminifer in the Arctic Ocean. Due to the naturally low concentration of [CO3] 2- in the Arctic, this foraminifer could be particularly sensitive to the forecast changes in seawater carbonate chemistry. To assess potential responses to ocean acidification and climate change, perturbation experiments were performed on juvenile and adult specimens by manipulating seawater to mimic the present-day carbon dioxide level and a future ocean acidification scenario (end of the century) under controlled (in situ) and elevated temperatures (1 and 4 °C, respectively). Foraminifera mortality was unaffected under all the different experiment treatments. Under low pH, N. pachyderma (s) shell net calcification rates decreased. This decrease was higher (30 %) in the juvenile specimens than decrease observed in the adults (21 %) ones. However, decrease in net calcification was moderated when both, pH decreased and temperature increased simultaneously. When only temperature increased, a net calcification rate for both life stages was not affected. These results show that forecast changes in seawater chemistry would impact calcite production in N. pachyderma (s), possibly leading to a reduction of calcite flux contribution and consequently a decrease in biologic pump efficiency.
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/217523
推荐引用方式 GB/T 7714	Manno,C,Morata,et al. Seawater carbonate chemistry, survival rate, shell size, calcification rate of the planktonic foraminifer Neogloboquadrina pachyderma (sinistral) in a laboratory experiment.2012-03-25.https://doi.org/10.1594/PANGAEA.830908.