气候变化领域集成服务门户(CCPortal): CO2 and inorganic nutrient enrichment affect the performance of a calcifying green alga and its noncalcifying epiphyte

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.847446
	CO2 and inorganic nutrient enrichment affect the performance of a calcifying green alga and its noncalcifying epiphyte
	Hofmann; Laurie C; Bischof; Kai; Baggini; Cecilia; Johnson; Andrew; Koop-Jakobsen; Ketil; Teichberg; Mirta
发布日期	2015-06-24
数据集类型	dataset
英文关键词	Benthos ; Biomass/Abundance/Elemental composition ; Bottles or small containers/Aquaria ( 20 L) ; Calcification/Dissolution ; Chlorophyta ; Coast and continental shelf ; Dictyota sp. ; Growth/Morphology ; Halimeda opuntia ; Laboratory experiment ; Macroalgae ; Macro-nutrients ; North Atlantic ; Plantae ; Primary production/Photosynthesis ; Respiration ; Single species ; Tropical
英文简介	Ocean acidification studies in the past decade have greatly improved our knowledge of how calcifying organisms respond to increased surface ocean CO2 levels. It has become evident that, for many organisms, nutrient availability is an important factor that influences their physiological responses and competitive interactions with other species. Therefore, we tested how simulated ocean acidification and eutrophication (nitrate and phosphate enrichment) interact to affect the physiology and ecology of a calcifying chlorophyte macroalga (Halimeda opuntia (L.) J.V. Lamouroux) and its common noncalcifying epiphyte (Dictyota sp.) in a 4-week fully crossed multifactorial experiment. Inorganic nutrient enrichment (+NP) had a strong influence on all responses measured with the exception of net calcification. Elevated CO2 alone significantly decreased electron transport rates of the photosynthetic apparatus and resulted in phosphorus limitation in both species, but had no effect on oxygen production or respiration. The combination of CO2 and +NP significantly increased electron transport rates in both species. While +NP alone stimulated H. opuntia growth rates, Dictyota growth was significantly stimulated by nutrient enrichment only at elevated CO2, which led to the highest biomass ratios of Dictyota to Halimeda. Our results suggest that inorganic nutrient enrichment alone stimulates several aspects of H. opuntia physiology, but nutrient enrichment at a CO2 concentration predicted for the end of the century benefits Dictyota sp. and hinders its calcifying basibiont H. opuntia.
空间范围	Latitude: 12.124740 * Longitude: -68.973030
时间范围	2012-01-01T00:00:00 - 2012-01-31T00:00:00
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/217086
推荐引用方式 GB/T 7714	Hofmann,Laurie C,Bischof,et al. CO2 and inorganic nutrient enrichment affect the performance of a calcifying green alga and its noncalcifying epiphyte.2015-06-24.https://doi.org/10.1594/PANGAEA.847446.