Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China

Abstract There is a growing consensus that the ongoing increase in atmospheric CO2 level will lead to a variety of effects on marine phytoplankton and ecosystems. However, the effects of CO2 enrichment on eutrophic coastal waters are still unclear, as are the complex mechanisms coupled to the develo...

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Autores principales:	Xin Liu, Yan Li, Yaping Wu, Bangqin Huang, Minhan Dai, Feixue Fu, David A. Hutchins, Kunshan Gao
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c96273c446d548928b9be9470e6f85dc
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spelling	oai:doaj.org-article:c96273c446d548928b9be9470e6f85dc2021-12-02T12:31:55ZEffects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China10.1038/s41598-017-07195-82045-2322https://doaj.org/article/c96273c446d548928b9be9470e6f85dc2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07195-8https://doaj.org/toc/2045-2322Abstract There is a growing consensus that the ongoing increase in atmospheric CO2 level will lead to a variety of effects on marine phytoplankton and ecosystems. However, the effects of CO2 enrichment on eutrophic coastal waters are still unclear, as are the complex mechanisms coupled to the development of eutrophication. Here, we report the first mesocosm CO2 perturbation study in a eutrophic subtropical bay during summer by investigating the effect of rising CO2 on a model artificial community consisting of well-characterized cultured diatoms (Phaeodactylum tricornutum and Thalassiosira weissflogii) and prymnesiophytes (Emiliania huxleyi and Gephyrocapsa oceanica). These species were inoculated into triplicate 4 m3 enclosures with equivalent chlorophyll a (Chl-a) under present and higher partial pressures of atmospheric CO2 (pCO2 = 400 and 1000 ppmv). Diatom bloom events were observed in all enclosures, with enhanced organic carbon production and Chl-a concentrations under high CO2 treatments. Relative to the low CO2 treatments, the consumption of the dissolved inorganic nitrogen and uptake ratios of N/P and N/Si increased significantly during the bloom. These observed responses suggest more extensive and complex effects of higher CO2 concentrations on phytoplankton communities in coastal eutrophic environments.Xin LiuYan LiYaping WuBangqin HuangMinhan DaiFeixue FuDavid A. HutchinsKunshan GaoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-14 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xin Liu Yan Li Yaping Wu Bangqin Huang Minhan Dai Feixue Fu David A. Hutchins Kunshan Gao Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China
description	Abstract There is a growing consensus that the ongoing increase in atmospheric CO2 level will lead to a variety of effects on marine phytoplankton and ecosystems. However, the effects of CO2 enrichment on eutrophic coastal waters are still unclear, as are the complex mechanisms coupled to the development of eutrophication. Here, we report the first mesocosm CO2 perturbation study in a eutrophic subtropical bay during summer by investigating the effect of rising CO2 on a model artificial community consisting of well-characterized cultured diatoms (Phaeodactylum tricornutum and Thalassiosira weissflogii) and prymnesiophytes (Emiliania huxleyi and Gephyrocapsa oceanica). These species were inoculated into triplicate 4 m3 enclosures with equivalent chlorophyll a (Chl-a) under present and higher partial pressures of atmospheric CO2 (pCO2 = 400 and 1000 ppmv). Diatom bloom events were observed in all enclosures, with enhanced organic carbon production and Chl-a concentrations under high CO2 treatments. Relative to the low CO2 treatments, the consumption of the dissolved inorganic nitrogen and uptake ratios of N/P and N/Si increased significantly during the bloom. These observed responses suggest more extensive and complex effects of higher CO2 concentrations on phytoplankton communities in coastal eutrophic environments.
format	article
author	Xin Liu Yan Li Yaping Wu Bangqin Huang Minhan Dai Feixue Fu David A. Hutchins Kunshan Gao
author_facet	Xin Liu Yan Li Yaping Wu Bangqin Huang Minhan Dai Feixue Fu David A. Hutchins Kunshan Gao
author_sort	Xin Liu
title	Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China
title_short	Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China
title_full	Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China
title_fullStr	Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China
title_full_unstemmed	Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China
title_sort	effects of elevated co2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c96273c446d548928b9be9470e6f85dc
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Effects of elevated CO2 on phytoplankton during a mesocosm experiment in the southern eutrophicated coastal water of China

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