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介生浮游生物群落变化的隐藏潜在机制:运输和旋驱动的变化

Minju Kim¹, Wonkeun Choi², Chan Joo Jang³

¹Ecological Risk Research Department, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea; Department of Ocean Science, University of Science and Technology, Daejeon 34113, Republic of Korea.

The Science of the total environment

|June 29, 2024

概括

在东海中,中生浮游生物的丰富性增加,由Noctiluca scintillans驱动,并受到海洋潮流和海洋热浪的影响. 运输和的物理变化对主导种类产生了重大影响,突出了复杂的环境相互作用.

科学领域:

海洋生态学和海洋学
气候变化指标气候变化指标
动物浮游生物的动力学

背景情况:

中生浮游生物群落是气候变化的敏感指标,因为它们的快速增长和环境反应.
东海/日本海,特别是乌勒盆地,近几十年来经历了快速的地表水温升.
了解浮游生物的变化对于评估气候变化对海洋生态系统的影响至关重要.

研究的目的:

调查乌勒盆地14年 (2009-2022) 期间中动物浮游生物分类构成的变化.
将这些变化与物理海洋学因素 (如运输驱动,流驱动的过程和海洋热浪) 相关联.
分析特定的电流的影响,如东韩温流 (EKWC) 和西运河 (V-west) 容量对动物浮游生物的动态.

主要方法:

从2009年到2022年,分析了乌勒盆地混合层中中生态浮游生物群体结构和丰富性的分析.
动物浮游生物数据与物理海洋学数据的相关性,包括EKWC方向,Ulleung热的存在,V-西体积和MHW发生情况.
确定占主导地位的动物浮游生物种群及其与观察到的环境条件的关系.

主要成果:

从2009年到2022年,观测到半动物浮游生物丰度的整体略有增加.
2015年和2020年发生了两个显著的丰度峰值,主要是由Noctiluca scintillans.驱动的.
2020年的峰值显示Pyrocystis pseudonoctiluca是下一个主导物种,与强烈的V-西,东向EKWC和MHW有关,与2015年的峰值不同.

结论:

物理变化,包括运输和流驱动的过程,强烈地影响了乌勒盆地中占主导地位的半动物浮游生物种群.
维西体积,EKWC方向和MHW的相互作用协同影响夏季特定动物浮游生物群体的增加.
这项研究强调了海洋生态系统和物理海洋学变化之间的复杂相互作用在一个变暖的区域海洋.

关键词:

东海/日本海东海/日本海埃迪驱动的埃迪驱动的海洋热浪海洋热浪中生动物和浮游生物群落.交通驱动的交通驱动.乌勒盆地乌勒盆地

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