Weekly Observations of Estuarine Microbial Assemblages during Summer in the Inner Part of Ariake Bay, Japan; Microbial Water-sediment Coupling in Turbid Shallow Waters

被引：3

作者：

Orita, Ryo ^{[1
]}

Yoshida, Kazuhiro ^{[1
]}

Terazono, Hiroto ^{[1
]}

Nagano, Yukio ^{[2
]}

Goto, Masatoshi ^{[1
]}

Kimura, Kei ^{[1
]}

Kobayashi, Genta ^{[1
]}

机构：

[1] Saga Univ, Fac Agr, 1 Honjo Machi, Saga 8408502, Japan

[2] Saga Univ, Analyt Res Ctr Expt Sci, 1 Honjo Machi, Saga 8408502, Japan

来源：

MICROBES AND ENVIRONMENTS | 2022年 / 37卷 / 02期

关键词：

environmental factors; microbial diversity; high-throughput sequencing; benthic microbes; pelagic microbes; BACTERIAL COMMUNITIES; SALINITY GRADIENT; SURFACE SEDIMENTS; YELLOW-RIVER; DIVERSITY; PROKARYOTES; CHINA; ORDINATION; DYNAMICS; PATTERNS;

D O I：

10.1264/jsme2.ME22015

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Estuarine microbial assemblages are altered by a number of environmental factors, and knowledge of these changes is essential for understanding the functions of microbes in estuarine ecosystems. The aims of the present study were to examine the relationship between microbial assemblages in the water column and sediment surface, and to identify the environmental factors that influence the short-term dynamics of microbial assemblages in these two zones in summer in the inner part of Ariake Bay. The microbial assemblage of each sample consisted of a mean of 71.1% operational taxonomic units (OTUs), which commonly occurred in the water column and sediment surface, although their relative composition markedly differed between the two zones. In the water column, spatiotemporal changes in microbial assemblages correlated with several environmental factors, such as the nitrogen content in suspended particles, turbidity, and salinity. On the other hand, temporal changes in the sediment's microbial assemblages were governed by a single environmental factor, namely, the oxygen reduction potential. These results suggest that the composition of microbial assemblages in the water column and sediment surface differed even in highly turbid brackish waters with high sediment resuspension, and the environmental factors contributing to the change in the assemblage composition also differed between the water column and sediment.

引用

页数：8