Revealing the variety in phytoplankton communities in waters near the Antarctic Peninsula by high-throughput sequencing

文献类型： 外文期刊

第一作者： Liu, Lu

作者： Liu, Lu;Xu, Qinzeng;Sun, Ping;Sun, Kaiming;Wang, Zongling;Wang, Zongling

作者机构：

关键词： Antarctic Peninsula; Chl a; phytoplankton community; 18S rDNA; multivariate statistical analysis

期刊名称：MARINE BIOLOGY RESEARCH （ 影响因子：1.1； 五年影响因子：1.4 ）

ISSN： 1745-1000

年卷期： 2024 年

页码：

收录情况： SCI

摘要： The waters near the Antarctic Peninsula have always been a hot spot because of their variable and unique oceanographic conditions. To distinguish the differences in phytoplankton communities, we conducted a mesoscale survey during the austral summer of 2018. Samples were collected at 14 stations located in the Drake Passage, South Shetland Islands (SSI) and South Orkney Islands (SOI). A total of 615 operational taxonomic units were extrapolated using V4-5 18S rDNA sequencing collected from the chl a(max) layers. Three groups (I, II, and III) were divided at a similarity level of 60% by multivariate statistical analysis, and there were significant differences between groups II and III. Generally, diatoms and dinoflagellates predominated among all three groups. Chlorophyta was found in greater abundance near the SSI, whereas pennate diatoms contributed more around the SOI. The different abundance of particular dinoflagellates was the reason for grouping by SIMPER analysis. And Pseudochattonella farcimen, Micromonas sp. and Pyramimonas sp were screened out which inducing dissimilarity were less mentioned in other literatures. Temperature and salinity among stations showed little difference in our study. Phytoplankton assemblage was a complex issue and the factors induced the difference of phytoplankton communities need to further analyze.

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