气候变化领域集成服务门户(CCPortal): Skeletal trade-offs in coralline algae in response to ocean acidification

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.832860
	Skeletal trade-offs in coralline algae in response to ocean acidification
	McCoy; Sophie J; Ragazzola; Federica
发布日期	2014-05-21
数据集类型	dataset
英文简介	Ocean acidification is changing the marine environment, with potentially serious consequences for many organisms. Much of our understanding of ocean acidification effects comes from laboratory experiments, which demonstrate physiological responses over relatively short timescales. Observational studies and, more recently, experimental studies in natural systems suggest that ocean acidification will alter the structure of seaweed communities. Here, we provide a mechanistic understanding of altered competitive dynamics among a group of seaweeds, the crustose coralline algae (CCA). We compare CCA from historical experiments (1981-1997) with specimens from recent, identical experiments (2012) to describe morphological changes over this time period, which coincides with acidification of seawater in the Northeastern Pacific. Traditionally thick species decreased in thickness by a factor of 2.0-2.3, but did not experience a change in internal skeletal metrics. In contrast, traditionally thin species remained approximately the same thickness but reduced their total carbonate tissue by making thinner inter-filament cell walls. These changes represent alternative mechanisms for the reduction of calcium carbonate production in CCA and suggest energetic trade-offs related to the cost of building and maintaining a calcium carbonate skeleton as pH declines. Our classification of stress response by morphological type may be generalizable to CCA at other sites, as well as to other calcifying organisms with species-specific differences in morphological types.
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/215506
推荐引用方式 GB/T 7714	McCoy,Sophie J,Ragazzola,et al. Skeletal trade-offs in coralline algae in response to ocean acidification.2014-05-21.https://doi.org/10.1594/PANGAEA.832860.