Diversity and Distribution of Harmful Algal Bloom Species from Seamount to Coastal Waters in the South China Sea

Huang, Hailong1,2; Xu, Shuaishuai4,5; Li, Shuangqing1; Wang, Xinwei1; Guo, Kangli4; Yan, Rongman4; Xie, Wei2,3; Yin, Kedong2,3; Hou, Shengwei4,6; Jiang, Haibo1,2,3

2023-02-01

10.1128/spectrum.04169-22

Microbiology Spectrum   Impact Factor & Quartile

2165-0497

["Mount Xianbei is one of the largest shallow seamounts located in the middle of the South China Sea (SCS), which might play a role in shaping the biodiversity of surrounding continental coastal waters, particularly the diversity of phytoplankton species causing frequent harmful algal blooms (HABs) in northern SCS. However, the diversity, composition, and distribution of phytoplankton species in the seamount regions of Xianbei remain largely unexplored. In this study, samples around and outside the seamount regions were collected during a late summer cruise of 2021 to test whether seamounts play a role in HAB species propagation. In total, we identified 19 HAB species across all samples using the ASV-based DNA metabarcoding approach, 6 of which had not been reported previously in the SCS, suggesting a diverse HAB species in the SCS. Specifically, 16 HAB species were found in the seamount region of Xianbei, and 5 of them were also found in the coastal waters, indicating a close connection between seamount and coastal waters. This study was the first attempt to explore HAB species' spatial diversity and vertical distribution in the seamount region of Xianbei at single-nucleotide resolution, which provides a novel explanation for the coastal HAB occurrence in the northern SCS.IMPORTANCE There are a number of seamounts under the water of the South China Sea (SCS). The seamounts might play a role in shaping the biodiversity of surrounding continental coastal waters. However, there is no direct evidence revealing the relationship of the biodiversity of phytoplankton between seamounts and coastal waters in the SCS, especially those species having the potential to form harmful algal blooms (HABs). Some HAB species might proliferate in certain geographic locations, while others may be broadly distributed across oceanic provinces. In this study, we provided a detailed analysis of phytoplankton composition and molecular detection of HAB species from seamount to coastal waters in the SCS, which suggested a strong interaction in the HAB species between the two areas. This finding provides new insights into the diversity and distribution of HABs in seamounts and their role in shaping the composition and the occurrence of HABs in coastal water.","There are a number of seamounts under the water of the South China Sea (SCS). The seamounts might play a role in shaping the biodiversity of surrounding continental coastal waters."]

South China Sea SCS seamounts harmful algal blooms metabarcoding analysis amplicon sequence variants ASV

SCI

English

Corresponding

Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)[SML2020SI1001] ; Science and Technology Innovation 2025 Major Project of Ningbo City[2022Z189] ; National Natural Science Foundation of China["32170108","91951111","42188102","42276163"] ; Independent Research Projects of Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)[SML2021SP204] ; National Science and Technology Basic Resources Investigation Program of China[2018FY100206] ; MEL Visiting Fellowship of Xiamen University[MELRS2210] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515120080] ; Shenzhen Science, Technology and Innovation Commission Programme[JCYJ20220530115401003]

Microbiology

Microbiology

WOS:000937500000001

AMER SOC MICROBIOLOGY

Web of Science

1.Ningbo Univ, Sch Marine Sci, Ningbo, Zhejiang, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China
3.Sun Yat Sen Univ, Sch Marine Sci, Guangzhou, Peoples R China
4.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen, Peoples R China
5.Jinan Univ, Coll Life Sci & Technol, Guangzhou, Peoples R China
6.Xiamen Univ, Inst Marine Microbes & Ecospheres, State Key Lab Marine Environm Sci, Xiamen, Peoples R China

Huang, Hailong,Xu, Shuaishuai,Li, Shuangqing,et al. Diversity and Distribution of Harmful Algal Bloom Species from Seamount to Coastal Waters in the South China Sea[J]. Microbiology Spectrum,2023.

Huang, Hailong.,Xu, Shuaishuai.,Li, Shuangqing.,Wang, Xinwei.,Guo, Kangli.,...&Jiang, Haibo.(2023).Diversity and Distribution of Harmful Algal Bloom Species from Seamount to Coastal Waters in the South China Sea.Microbiology Spectrum.

Huang, Hailong,et al."Diversity and Distribution of Harmful Algal Bloom Species from Seamount to Coastal Waters in the South China Sea".Microbiology Spectrum (2023).