气候变化领域集成服务门户(CCPortal): Mesocosm experiment 2012 on warming and acidification effects on phytoplankton biomass and chemical composition

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.840852
	Mesocosm experiment 2012 on warming and acidification effects on phytoplankton biomass and chemical composition
	Paul; Carolin; Matthiessen; Birte; Sommer; Ulrich
发布日期	2014-12-18
数据集类型	dataset
英文简介	We investigated the impacts of predicted ocean acidification and future warming on the quantity and nutritional quality of a natural phytoplankton autumn bloom in a mesocosm experiment. Since the effects of CO2-enrichment and temperature have usually been studied independently, we were also interested in the interactive effects of both aspects of climate change. Therefore, we used a factorial design with two temperature and two acidification levels in a mesocosm experiment with a Baltic Sea phytoplankton community. Our results show a significant time-dependent influence of warming on phytoplankton carbon, chlorophyll a as well as POC. Phytoplankton carbon for instance decreased by more than a half with increasing temperature at bloom time. Additionally, elemental carbon to phosphorus ratios (C:P) increased significantly by approximately 5-8 % under warming. Impacts of CO2 or synergetic effects of warming and acidification could not be detected. We suggest that temperature-induced stronger grazing pressure was responsible for the significant decline in phytoplankton biomass. Our results suggest that biological effects of warming on Baltic Sea phytoplankton are considerable and will likely have fundamental consequences for the trophic transfer in the pelagic food-web.
时间范围	2012-10-19T00:00:00 - 2012-11-12T00:00:00
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/215478
推荐引用方式 GB/T 7714	Paul,Carolin,Matthiessen,et al. Mesocosm experiment 2012 on warming and acidification effects on phytoplankton biomass and chemical composition.2014-12-18.https://doi.org/10.1594/PANGAEA.840852.