气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and photosynthetic and calcification rate of the free-living coralline algae Phymatolithon lusitanicum

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DOI	https://doi.org/10.1594/PANGAEA.892895
	Seawater carbonate chemistry and photosynthetic and calcification rate of the free-living coralline algae Phymatolithon lusitanicum
	Sordo; Laura; Santos; Rui; Barrote; Isabel; Silva; João
发布日期	2018-08-09
数据集类型	dataset
英文关键词	Benthos ; Calcification/Dissolution ; Coast and continental shelf ; Containers and aquaria (20- 1000 L or &lt ; 1 m**2) ; Growth/Morphology ; Laboratory experiment ; Macroalgae ; North Atlantic ; Phymatolithon lusitanicum ; Plantae ; Primary production/Photosynthesis ; Rhodophyta ; Single species ; Temperate
英文简介	Mäerl/rhodolith beds are protected habitats that may be affected by ocean acidification (OA), but it is still unclear how the availability of CO2 will affect the metabolism of these organisms. Some of the inconsistencies found among OA experimental studies may be related to experimental exposure time and synergetic effects with other stressors. Here, we investigated the long‐term (up to 20 months) effects of OA on the production and calcification of the most common mäerl species of southern Portugal, Phymatolithon lusitanicum. Both the photosynthetic and calcification rates increased with CO2 after the first 11 months of the experiment, whereas respiration slightly decreased with CO2. After 20 months, the pattern was reversed. Acidified algae showed lower photosynthetic and calcification rates, as well as lower accumulated growth than control algae, suggesting that a metabolic threshold was exceeded. Our results indicate that long‐term exposure to high CO2 will decrease the resilience of Phymatolithon lusitanicum. Our results also show that shallow communities of these rhodoliths may be particularly at risk, while deeper rhodolith beds may become ocean acidification refuges for this biological community.
空间范围	Latitude: 37.183510 * Longitude: -8.316680
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/216118
推荐引用方式 GB/T 7714	Sordo,Laura,Santos,et al. Seawater carbonate chemistry and photosynthetic and calcification rate of the free-living coralline algae Phymatolithon lusitanicum.2018-08-09.https://doi.org/10.1594/PANGAEA.892895.