气候变化领域集成服务门户(CCPortal): Seawater carbonate chemistry and growth rate, primary production of Cystoseira tamariscifolia (Phaeophyceae) in laboratory experiment

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DOI	https://doi.org/10.1594/PANGAEA.875650
	Seawater carbonate chemistry and growth rate, primary production of Cystoseira tamariscifolia (Phaeophyceae) in laboratory experiment
	Celis-Plá; Paula S M; Martínez; Brezo; Korbee; Nathalie; Hall-Spencer; Jason M; Figueroa; Félix L
发布日期	2017-05-24
数据集类型	dataset
英文关键词	Benthos ; Bottles or small containers/Aquaria ( 20 L) ; Chromista ; Coast and continental shelf ; Cystoseira tamariscifolia ; Growth/Morphology ; Laboratory experiment ; Macroalgae ; Mediterranean Sea ; Ochrophyta ; Primary production/Photosynthesis ; Single species ; Temperate ; Temperature
英文简介	Ocean acidification increases the amount of dissolved inorganic carbon (DIC) available in seawater which can benefit photosynthesis in those algae that are currently carbon limited, leading to shifts in the structure and function of seaweed communities. Recent studies have shown that ocean acidification-driven shifts in seaweed community dominance will depend on interactions with other factors such as light and nutrients. The study of interactive effects of ocean acidification and warming can help elucidate the likely effects of climate change on marine primary producers. In this study, we investigated the ecophysiological responses of Cystoseira tamariscifolia (Hudson) Papenfuss. This large brown macroalga plays an important structural role in coastal Mediterranean communities. Algae were collected from both oligotrophic and ultraoligotrophic waters in southern Spain. They were then incubated in tanks at ambient (ca. 400-500 ppm) and high CO2 (ca. 1200-1300 ppm), and at 20 °C (ambient temperature) and 24 °C (ambient temperature +4 °C). Increased CO2 levels benefited the algae from both origins. Biomass increased in elevated CO2 treatments and was similar in algae from both origins. The maximal electron transport rate (ETRmax), used to estimate photosynthetic capacity, increased in ambient temperature/high CO2 treatments. The highest polyphenol content and antioxidant activity were observed in ambient temperature/high CO2 conditions in algae from both origins; phenol content was higher in algae from ultraoligotrophic waters (1.5-3.0%) than that from oligotrophic waters (1.0-2.2%). Our study shows that ongoing ocean acidification can be expected to increase algal productivity (ETRmax), boost antioxidant activity (EC50), and increase production of photoprotective phenols. Cystoseira tamariscifolia collected from oligotrophic and ultraoligotrophic waters were able to benefit from increases in DIC at ambient temperatures. Warming, not acidification, may be the key stressor for this habitat as CO2 levels continue to rise.
空间范围	Median Latitude: 36.775000 * Median Longitude: 1.108335 * South-bound Latitude: 36.700000 * West-bound Longitude: -2.100000 * North-bound Latitude: 36.850000 * East-bound Longitude: 4.316670
时间范围	2013-09-25T00:00:00 - 2013-09-25T00:00:00
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/216486
推荐引用方式 GB/T 7714	Celis-Plá,Paula S M,Martínez,et al. Seawater carbonate chemistry and growth rate, primary production of Cystoseira tamariscifolia (Phaeophyceae) in laboratory experiment.2017-05-24.https://doi.org/10.1594/PANGAEA.875650.