气候变化领域集成服务门户(CCPortal): Growth and carbon metabolism of the seaweed Fucus vesiculosus in the western Baltic Sea ("Kiel Outdoor Benthocosms")

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.856891
	Growth and carbon metabolism of the seaweed Fucus vesiculosus in the western Baltic Sea ("Kiel Outdoor Benthocosms")
	Graiff; Angelika; Bartsch; Inka; Ruth; Wolfgang; Wahl; Martin; Karsten; Ulf
发布日期	2016-01-14
数据集类型	dataset
英文简介	Warming and acidification of the oceans as a consequence of increasing CO2-concentrations occur at large scales. Numerous studies have shown the impact of single stressors on individual species. However, studies on the combined effect of multiple stressors on a multi-species assemblage, which is ecologically much more realistic and relevant, are still scarce. Therefore, we orthogonally crossed the two factors warming and acidification in mesocosm experiments and studied their single and combined impact on the brown alga Fucus vesiculosus associated with its natural community (epiphytes and mesograzers) in the Baltic Sea in all seasons (from April 2013 to April 2014). We superimposed our treatment factors onto the natural fluctuations of all environmental variables present in the Benthocosms in so-called delta-treatments. Thereby we compared the physiological responses of F. vesiculosus (growth and metabolites) to the single and combined effects of natural Kiel Fjord temperatures and pCO2 conditions with a 5 °C temperature increase and/or pCO2 increase treatment (1100 ppm in the headspace above the mesocosms). Responses were also related to the factor photoperiod which changes over the course of the year. Our results demonstrate complex seasonal pattern. Elevated pCO2 positively affected growth of F. vesiculosus alone and/or interactively with warming. The response direction (additive, synergistic or antagonistic), however, depended on season and daylength. The effects were most obvious when plants were actively growing during spring and early summer. Our study revealed for the first time that it is crucial to always consider the impact of variable environmental conditions throughout all seasons. In summary, our study indicates that in future F. vesiculosus will be more affected by detrimental summer heat-waves than by ocean acidification although the latter consequently enhances growth throughout the year. The mainly negative influence of rising temperatures on the physiology of this keystone macroalga may alter and/or hamper its ecological functions in the shallow coastal ecosystem of the Baltic Sea.
空间范围	Latitude: 54.330000 * Longitude: 10.150000
时间范围	2013-04-04T00:00:00 - 2014-04-01T00:00:00
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/215421
推荐引用方式 GB/T 7714	Graiff,Angelika,Bartsch,et al. Growth and carbon metabolism of the seaweed Fucus vesiculosus in the western Baltic Sea ("Kiel Outdoor Benthocosms").2016-01-14.https://doi.org/10.1594/PANGAEA.856891.