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A decline in macro-algae species resulting in the overwhelming prevalence of Corallina species is caused by low-pH seawater induced by short-term acid rain
Gao, Shan1,2,3; Sun, Qinghai4; Tao, Yueliang5; Wang, Xulei1,2,3; Li, Wei5; Huan, Li1,2,3; Wu, Mingjiang4,5; Wang, Guangce1,2
2016-02-01
Source PublicationJOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
Volume475Pages:144-153
SubtypeArticle
AbstractThe increase in atmospheric CO2 and acid rain precipitation are serious global environmental problems that have had worldwide consequences, including the damage of biodiversity in intertidal zones. The decline in species richness in the intertidal zone of Wenzhou, China, is a typical example. In this study, we investigated the effects of CO2-enriched seawater, CO2-enriched air and acid rain on a dominant species, Corallina sp., and an inferior species, Ulva conglobata, in the intertidal zone of Wenzhou. The responses of Corallina sp. and U. conglobata to high-CO2 seawater are similar, demonstrating that both of them are tolerant of seawater acidification induced by aerating CO2-enriched air. The PSII activities of Corallina sp. declined markedly when exposed to CO2-free air, while they increased significantly with high-CO2 air. An increase of non-photochemical quenching (NPQ) was induced by CO2-free air, but it declined remarkably with CO2-enriched air, suggesting that Corallina sp. can use atmospheric CO2 as carbon source for photosynthesis. Corallina sp. survived extremely low pH conditions (pH 3) and could regulate the pH of their ambient seawater through the dissolution of CaCO3, while the photosynthetic properties of U. conglobata decreased drastically and even the thalli were damaged irreversibly under low pH conditions (pH 3). These results suggest that Corallina sp. is much more tolerant of extremely low pH than U. conglobata. Based on these results, we suggest that it is not the increase of atmospheric CO2 but acid rain at least in part contributed to the damage of the biodiversity in the intertidal zone, with the result that these areas are now mainly dominated by Corallina sp. (C) 2015 Elsevier B.V. All rights reserved.
KeywordCo2 Acid Rain Coralline Algae Intertidal Zone Ocean Acidification Photosynthesis
DOI10.1016/j.jembe.2015.11.019
Indexed BySCI
Language英语
WOS IDWOS:000369212600018
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/112439
Collection实验海洋生物学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Biol & Biotechnol, Qingdao, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Wenzhou Seatiger Seaweed Cultivat Co Ltd, Wenzhou 325401, Zhejiang, Peoples R China
5.Wenzhou Univ, Coll Life & Environm Sci, Zhejiang Prov Key Lab Water Environm & Marine Bio, Wenzhou 325035, Peoples R China
First Author AffilicationKey Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Gao, Shan,Sun, Qinghai,Tao, Yueliang,et al. A decline in macro-algae species resulting in the overwhelming prevalence of Corallina species is caused by low-pH seawater induced by short-term acid rain[J]. JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,2016,475:144-153.
APA Gao, Shan.,Sun, Qinghai.,Tao, Yueliang.,Wang, Xulei.,Li, Wei.,...&Wang, Guangce.(2016).A decline in macro-algae species resulting in the overwhelming prevalence of Corallina species is caused by low-pH seawater induced by short-term acid rain.JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY,475,144-153.
MLA Gao, Shan,et al."A decline in macro-algae species resulting in the overwhelming prevalence of Corallina species is caused by low-pH seawater induced by short-term acid rain".JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY 475(2016):144-153.
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