气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and calcification rate in flume experiment

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DOI	https://doi.org/10.1594/PANGAEA.847986
	Seawater carbonate chemistry and calcification rate in flume experiment
	Comeau; Steeve; Edmunds; Peter J; Lantz; Coulson A; Carpenter; Robert C
发布日期	2015-07-09
数据集类型	dataset
英文关键词	Benthos ; Calcification/Dissolution ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Entire community ; Laboratory experiment ; Rocky-shore community ; South Pacific ; Tropical
英文简介	Ocean acidification (OA) poses a severe threat to tropical coral reefs, yet much of what is know about these effects comes from individual corals and algae incubated in isolation under high pCO2. Studies of similar effects on coral reef communities are scarce. To investigate the response of coral reef communities to OA, we used large outdoor flumes in which communities composed of calcified algae, corals, and sediment were combined to match the percentage cover of benthic communities in the shallow back reef of Moorea, French Polynesia. Reef communities in the flumes were exposed to ambient (400 matm) and high pCO2 (1300 matm) for 8 weeks, and calcification rates measured for the constructed communities including the sediments. Community calcification was reduced by 59% under high pCO2, with sediment dissolution explaining ~ 50% of this decrease; net calcification of corals and calcified algae remained positive but was reduced by 29% under elevated pCO2. These results show that, despite the capacity of coral reef calcifiers to maintain positive net accretion of calcium carbonate under OA conditions, reef communities might transition to net dissolution as pCO2 increases, particularly at night, due to enhanced sediment dissolution.
空间范围	Latitude: -17.476900 * Longitude: -149.815300
时间范围	2011-04-01T00:00:00 - 2011-08-31T00:00:00
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/216998
推荐引用方式 GB/T 7714	Comeau,Steeve,Edmunds,et al. Seawater carbonate chemistry and calcification rate in flume experiment.2015-07-09.https://doi.org/10.1594/PANGAEA.847986.