气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and calcification physiology data in coral reef taxa

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.892655
	Seawater carbonate chemistry and calcification physiology data in coral reef taxa
	Comeau; Steeve; Cornwall; Christopher Edward; De Carlo; Eric Heinen; Krieger; E; McCulloch; Malcolm T
发布日期	2018-07-26
数据集类型	dataset
英文关键词	Acropora yongei ; Animalia ; Benthic animals ; Benthos ; Calcification/Dissolution ; Cnidaria ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Indian Ocean ; Indian Ocean ; Laboratory experiment ; Macroalgae ; Plantae ; Pocillopora damicornis ; Rhodophyta ; Single species ; Sporolithon durum ; Temperate
英文简介	Ocean acidification (OA) is a major threat to marine ecosystems, particularly coral reefs which are heavily reliant on calcareous species. OA decreases seawater pH and calcium carbonate saturation state (Omega), and increases the concentration of dissolved inorganic carbon (DIC). Intense scientific effort has attempted to determine the mechanisms via which ocean acidification (OA) influences calcification, led by early hypotheses that calcium carbonate saturation state (Omega) is the main driver. We grew corals and coralline algae for 8 to 21 weeks, under treatments where the seawater parameters Omega, pH and DIC were manipulated to examine their differential effects on calcification rates and calcifying fluid chemistry (Omega cf, pHcf, and DICcf). Here, using long duration experiments, we provide geochemical evidence that differing physiological controls on carbonate chemistry at the site of calcification, rather than seawater Omega, are the main determinants of calcification. We found that changes in seawater pH and DIC rather than Omega had the greatest effects on calcification and calcifying fluid chemistry, though the effects of seawater carbonate chemistry were limited. Our results demonstrate the capacity of organisms from taxa with vastly different calcification mechanisms to regulate their internal chemistry under extreme chemical conditions. These findings provide an explanation for the resilience of some species to OA, while also demonstrating how changes in seawater DIC and pH under OA influence calcification of key coral reef taxa.
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/216127
推荐引用方式 GB/T 7714	Comeau,Steeve,Cornwall,et al. Seawater carbonate chemistry and calcification physiology data in coral reef taxa.2018-07-26.https://doi.org/10.1594/PANGAEA.892655.