CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China.
Int J Environ Res Public Health. 2021 Oct 31;18(21):11470. doi: 10.3390/ijerph182111470.
The Western Pacific is the most oligotrophic sea on Earth, with numerous seamounts. However, the plankton diversity and biogeography of the Western Pacific in general and the seamount regions in particular remains largely unexplored. In this project, we quantitatively analyzed the composition and distribution patterns of plankton species in the Western Pacific seamount regions by applying metabarcoding analysis. We identified 4601 amplicon sequence variants (ASVs) representing 34 classes in seven protist phyla/divisions in the Western Pacific seamount regions, among which Dinoflagellata was by far the most dominant division. Among the 336 annotated phytoplankton species (including species in Dinoflagellata), we identified 36 harmful algal bloom (HAB) species, many of which displayed unique spatial distribution patterns in the Western Pacific seamount regions. This study was the first attempt in applying ASV-based metabarcoding analysis in studying phytoplankton and HAB species in the Western Pacific seamount regions, which may facilitate further research on the potential correlation between HABs in the Western Pacific seamount regions and coastal regions.
西太平洋是地球上最贫营养的海域之一，拥有众多海山。然而，西太平洋特别是海山区的浮游生物多样性和生物地理学仍在很大程度上未被探索。在这个项目中，我们通过应用宏条形码分析，定量分析了西太平洋海山区浮游生物物种的组成和分布模式。我们在西太平洋海山区确定了 7 个原生动物门/类群中的 4601 个扩增子序列变体 (ASV)，代表了 34 个类群，其中鞭毛藻类是迄今为止最主要的类群。在 336 种注释的浮游植物物种（包括鞭毛藻类中的物种）中，我们确定了 36 种有害藻华 (HAB) 物种，其中许多在西太平洋海山区表现出独特的空间分布模式。本研究首次尝试应用基于 ASV 的宏条形码分析来研究西太平洋海山区的浮游植物和 HAB 物种，这可能有助于进一步研究西太平洋海山区和沿海地区 HAB 之间的潜在相关性。
