Biogeochemical characteristics and microbial response to indicate degradation of organic matter around Pair-summit Seamounts in the Tropical Western Pacific Ocean

doi:10.1016/j.ecolind.2022.108637

	Biogeochemical characteristics and microbial response to indicate degradation of organic matter around Pair-summit Seamounts in the Tropical Western Pacific Ocean
	Lai, Xiaoshuang 1,2,3,4; Li, Xuegang 1,2,3,4; Song, Jinming1,2,3,4 ; Ma, Jun 1,2,3,4; Yuan, Huamao 1,2,3,4; Duan, Liqin 1,2,3,4; Li, Ning 2,3,4,5; Yang, Ziyang 1,2,3,4
	2022-03-01
发表期刊	ECOLOGICAL INDICATORS
ISSN	1470-160X
卷号	136 页码:9
通讯作者	Li, Xuegang(lixuegang@qdio.ac.cn) ; Song, Jinming(jmsong@qdio.ac.cn)
摘要	The ecological knowledge of seamounts has accumulated plentifully in recent years. However, there are few studies on the distribution and degradation pattern of organic matter in seamounts morphology by using microorganisms and nutrients as indicators. In this research, we investigated the dynamic distribution of nutrients, particulates and microbial communities of the summits, flanks and base in the M5 Pair-summit Seamount, aiming to better understand the distribution and degradation pattern of organic matter around the seamount. The results indicate that TOC concentration presented a gradual decrease from summit to base, and obtained the lowest value at Base1 (0.65 mg L-1). Illumina Hiseq high-throughput sequencing analysis shows that Firmicutes (38.86%) and Bacteroidetes (6.86%) on the seamount Base1 obtained the highest relative abundance, which were related to the degradation of organic matter caused by denitrification. The distribution of organic matter and composition of microbial communities formed disparity due to the morphology of seamounts. In addition, shallow seamounts and deep seamounts exhibited a high degree of temporal and spatial specificity. Summit1 produced organic matter from phytoplankton, with the highest TOC content (1.23 mg L-1), dominated in microorganisms of Cyanobacteria (18.06%), and an upwelling of nutrients due to the "seamount effect". However, Summit2 utilized nitrifying bacteria Taumarchaeota to degrade organic matter. This research suggests that the unique topographic features of seamounts is essential to sustain the surrounding microbial composition and hydrodynamics, which can further promote the study of seamount ecological environment.
关键词	Seamount morphology Organic matter Distribution and degradation Nutrients Microorganisms
DOI	10.1016/j.ecolind.2022.108637
收录类别	SCI
语种	英语
资助项目	Major Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) in the 14th 5-year Plan ; National Natural Science Foundation of China[91958103] ; National Natural Science Foundation of China[42176200] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19060401] ; Natural Science Foundation of Shandong Province[ZR2020YQ28]
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Environmental Sciences
WOS记录号	WOS:000761456500001
出版者	ELSEVIER
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/178153
专题	海洋生态与环境科学重点实验室
通讯作者	Li, Xuegang; Song, Jinming
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 5.Chinese Acad Sci, Publ Technol Serv Ctr, Inst Oceanol, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Lai, Xiaoshuang,Li, Xuegang,Song, Jinming,et al. Biogeochemical characteristics and microbial response to indicate degradation of organic matter around Pair-summit Seamounts in the Tropical Western Pacific Ocean[J]. ECOLOGICAL INDICATORS,2022,136:9.
APA	Lai, Xiaoshuang.,Li, Xuegang.,Song, Jinming.,Ma, Jun.,Yuan, Huamao.,...&Yang, Ziyang.(2022).Biogeochemical characteristics and microbial response to indicate degradation of organic matter around Pair-summit Seamounts in the Tropical Western Pacific Ocean.ECOLOGICAL INDICATORS,136,9.
MLA	Lai, Xiaoshuang,et al."Biogeochemical characteristics and microbial response to indicate degradation of organic matter around Pair-summit Seamounts in the Tropical Western Pacific Ocean".ECOLOGICAL INDICATORS 136(2022):9.

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