Changing structure of benthic foraminiferal communities due to declining pH: Results from laboratory culture experiments

doi:10.1007/s11430-018-9321-6

	Changing structure of benthic foraminiferal communities due to declining pH: Results from laboratory culture experiments
	Dong, Shuaishuai 1,5,6; Lei, Yanli 1,4,5,6; Li, Tiegang 2,5; Jian, Zhimin 3
刊名	SCIENCE CHINA-EARTH SCIENCES
	2019-07
卷号	62 期号:7 页码:1151-1166
关键词	Benthic foraminifera Community pH Laboratory culture experiment Yellow Sea
ISSN号	1674-7313
DOI	10.1007/s11430-018-9321-6
英文摘要	The ocean absorbs large amounts of CO2 emitted from human activities, which results in a decrease in seawater pH. Marine calcifying organisms such as foraminifera, are most likely to be affected by this declining pH. In this study, we collected sediments from five stations of different depths (34-73 m) in a continental shelf of the Yellow Sea. The entire benthic foraminiferal communities together with sea sediments were cultured under three constant pHs (8.3, 7.8, and 7.3) for 6 and 12 weeks in the laboratory to study their responses to pH or incubation time. The microcosm's experimental results obtained showed that most of the foraminiferal community parameters (abundance, species richness, Margalef index, and Shannon-Wiener diversity) decreased significantly (p<0.05) with the decline in pH in all the tested stations. The responses of foraminifera to the decline in pH were species-specific, for instance, Protelphidium tuberculatum and Cribroelphidiumfrigidum were highly sensitive to declining pH and were finally eliminated at low pH, while some species (e.g., Lagenammina atlantica, Verneuilinulla advena, V. propinqua, Haplophragmoides applanata, and H. canariensis) could tolerate low pH and acted as pH-tolerant species. In addition, the proportion of hyaline taxa showed a significant (p<0.05) positive correlation with pH, while agglutinated type showed a negative response. Furthermore, different incubation times (6 and 12 weeks) showed significant effects on the nearshore communities other than the offshore treatments, which were, however, entirely declined after 6 weeks' incubation under low pH manipulation. Our results indicated that nearshore foraminiferal communities showed rather a resilience to the declining pH and the offshore foraminifera, especially those in the central area of the Yellow Sea Cold Water Mass were found to be more sensitive to the decline in pH in the continental shelf sediments of the Yellow Sea.
资助项目	Senior User Project of RV KEXUE[KEXUE2018G27]
WOS关键词	OCEAN ACIDIFICATION ; CARBONATE ION ; YELLOW SEA ; TEMPERATURE ; CALCIFICATION ; SALINITY ; IMPACT ; MG/CA ; PRODUCTIVITY ; EMISSIONS
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000469804300008
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24663]
专题	自然资源部第一海洋研究所
通讯作者	Lei, Yanli; Jian, Zhimin
作者单位	1.Chinese Acad Sci, Inst Oceanol, Lab Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China 2.MNR, Inst Oceanog 1, Key Lab Marine Sedimentol & Environm Geol, Qingdao 266061, Shandong, Peoples R China 3.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao 266061, Shandong, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Dong, Shuaishuai,Lei, Yanli,Li, Tiegang,et al. Changing structure of benthic foraminiferal communities due to declining pH: Results from laboratory culture experiments[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(7):1151-1166.
APA	Dong, Shuaishuai,Lei, Yanli,Li, Tiegang,&Jian, Zhimin.(2019).Changing structure of benthic foraminiferal communities due to declining pH: Results from laboratory culture experiments.SCIENCE CHINA-EARTH SCIENCES,62(7),1151-1166.
MLA	Dong, Shuaishuai,et al."Changing structure of benthic foraminiferal communities due to declining pH: Results from laboratory culture experiments".SCIENCE CHINA-EARTH SCIENCES 62.7(2019):1151-1166.