浮游植物群落对黑潮入侵产生的内波和反气旋涡流综合影响的反应

IF 2.2 3区 地球科学 Q2 OCEANOGRAPHY Ocean Dynamics Pub Date : 2024-05-09 DOI:10.1007/s10236-024-01618-7
Yanping Zhong, Xiaolin Bai, Edward A. Laws, Wenfang Lu, Zhida Huang, Wupeng Xiao, Jixin Chen, Lingqi Ma, Xin Liu, Bangqin Huang
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引用次数: 0

摘要

黑潮入侵产生的反气旋涡(ACE)经常与内波(IW)相互作用。这些相互作用非常复杂,但对南海北部的生物地球化学效应起着重要作用。然而,以往对这些相互作用的研究主要集中在物理过程上,而对其相互作用的生物反应还不清楚。在本研究中,通过对 2016 年和 2017 年夏季 SCS 大陆坡的两组高频时间序列观测结果显示,透光层中的浮游植物同时受到黑潮的 IWs 和 ACEs 的影响。浮游植物不同的表面分布可归因于不同的水源、黑潮入侵和珠江羽流。然而,这两年次表层叶绿素最高层的浮游植物生物量和群落组成相似,这可以解释为 2016 年的小波幅 IWs 和成熟 ACEs 组合以及 2017 年的大波幅 IWs 诱导了相似的营养物质向上输送。这两年浮游植物群落不同的垂直分布可归因于浮游植物群对等压上升、自下而上控制和自上而下控制的直接影响的不同反应。我们的研究结果表明,黑潮水体中的IWs和ACEs之间的相互作用产生了复杂的生态效应,这些复杂效应进一步影响了这一边缘海生态系统的结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Phytoplankton community responses to the combined effects of internal waves and anticyclonic eddies shed from the Kuroshio intrusion

The anticyclonic eddies (ACEs) shed from the Kuroshio intrusion often interact with internal waves (IWs). Those interactions are complex but play an important role in the biogeochemical effects in the northern South China Sea (SCS). However, previous studies on these interactions have mainly focused on physical processes, while biological responses to their interactions have been unclear. In this study, results of two field cruises with focus on two sets of high-frequency time-series observations over the continental slope of the SCS during the summers of 2016 and 2017 revealed that phytoplankton in the euphotic zone were affected by both IWs and ACEs shed from the Kuroshio Current. Distinct surface distributions of phytoplankton were attributable to different sources of the water, Kuroshio intrusions and the plume from the Pearl River. However, similarities of phytoplankton biomass and community composition in the subsurface chlorophyll maximum layer in both years could be explained by the similar upward transport of nutrients induced by combinations of small-amplitude IWs and mature ACEs in 2016 and large-amplitude IWs in 2017. The distinct vertical distributions of the phytoplankton community in both years were attributable to the different responses of phytoplankton groups to the direct effects of isopycnal uplifting, bottom-up controls, and top-down controls. Our results showed that the ecological effects of the interactions between IWs and ACEs shed from the Kuroshio water were complex, and those complex effects further influenced the structure of this marginal sea ecosystem.

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来源期刊
Ocean Dynamics
Ocean Dynamics 地学-海洋学
CiteScore
5.40
自引率
0.00%
发文量
37
审稿时长
6-12 weeks
期刊介绍: Ocean Dynamics is an international journal that aims to publish high-quality peer-reviewed articles in the following areas of research: Theoretical oceanography (new theoretical concepts that further system understanding with a strong view to applicability for operational or monitoring purposes); Computational oceanography (all aspects of ocean modeling and data analysis); Observational oceanography (new techniques or systematic approaches in measuring oceanic variables, including all aspects of monitoring the state of the ocean); Articles with an interdisciplinary character that encompass research in the fields of biological, chemical and physical oceanography are especially encouraged.
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