Patterns and drivers of microeukaryotic distribution along the North Equatorial Current from the Central Pacific Ocean to the South China Sea.
Patterns and drivers of microeukaryotic distribution along the North Equatorial Current from the Central Pacific Ocean to the South China Sea.
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DOI：
10.1016/j.marpolbul.2021.112091
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发表时间：
2021-02
影响因子：
5.8
通讯作者：
F. Zhao;Yu Wang;Shan Zheng;Rongjie Zhao;Mao Lin;Kuidong Xu
中科院分区：
文献类型：
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作者：
F. Zhao;Yu Wang;Shan Zheng;Rongjie Zhao;Mao Lin;Kuidong Xu
微真核生物在形态和功能上都被认为是高度丰富和多样化的，然而，关于它们的多样性和沿洋流分布的数据仍然很少。在这里，利用高通量DNA测序技术分析了北赤道流(NEC)及其分叉9000公里处表层海水中微真核生物的分布。微真核生物群落进一步划分为中太平洋、西太平洋和南中国海三个类群。统计分析表明，WPO中的微真核组装是由NEC运输的CPO群落维持的。与空间过程相比，环境选择对群落变异的贡献更大。温度和盐度是形成所考察群落的两个最重要的环境因子。总之，对NEC沿岸微真核生物多样性和分布的特征提供了对它们在公海分布的驱动因素的洞察。
Microeukaryotes have been recognized as highly abundant and diverse both in form and function, however, data on their diversity and distribution along marine currents remain scarce. Herein, the distribution of microeukaryotes in surface seawaters was analyzed along a 9000 km stretch of the North Equatorial Current (NEC) and its bifurcation using high throughput DNA sequencing. Significant distance-decay patterns were detected, and the microeukaryote communities were further divided into Central Pacific Ocean (CPO), Western Pacific Ocean (WPO), and South China Sea (SCS) groups. Statistical analyses suggested that the microeukaryotic assembly in the WPO is maintained by the CPO community transported via the NEC. Environmental selection contributed more to community variations than spatial processes did. Temperature and salinity were the two most important environmental factors to shape the examined communities. Altogether, characterizing the microeukaryotic diversity and distribution along the NEC provided an insight into the drivers of their distribution in open oceans.