气候变化领域集成服务门户(CCPortal): Weak Response of Biological Productivity and Community Structure of Phytoplankton to Mesoscale Eddies in the Oligotrophic Philippine Sea

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DOI	10.1029/2020JC016436
	Weak Response of Biological Productivity and Community Structure of Phytoplankton to Mesoscale Eddies in the Oligotrophic Philippine Sea
	Yun M.S.; Kim Y.; Jeong Y.; Joo H.T.; Jo Y.-H.; Lee C.H.; Bae H.; Lee D.; Bhavya P.S.; Kim D.; Sun J.; Lee S.H.
发表日期	2020
ISSN	21699275
卷号	125 期号:12
英文摘要	In the Philippine Sea, mesoscale eddies have been frequently observed, but little is known about their contributions to the biological productivity and community structure of phytoplankton in the region. In situ carbon and nitrogen uptake rates and phytoplankton community structure were investigated in the Philippine Sea based on the 13C-15N dual-tracer technique and photosynthetic pigment analysis from late August to September 2018. Based on the comparison of the phytoplankton community structure among the cold eddy, warm eddy, and outer area, we found that the phytoplankton composition was different in the warm eddy with relatively lower contributions of large phytoplankton. However, a distinct enhancement in phytoplankton biomass over the euphotic zone was not detected even in eddy occurrence. In terms of community, the picoplankton Prochlorococcus was persistently dominant, which was attributed to a low supply and chemical composition of nutrients. The average integrated primary productions (IPP) were 80.4, 75.9, and 76.3 mg C m−2d−1 for the cold eddy, warm eddy, and outer area, respectively. The IPP under the eddy condition was not largely different from that in reference sites, even though the vertical distribution of productivity maximum was found to be different depending on eddy condition. These weak biological responses to mesoscale eddies might be attributed to the sustaining picoplankton-dominant community structure and no substantial upward inputs of nutrients to the euphotic zone. Our findings represent an important contribution to understanding the biological response of mesoscale eddies in the oligotrophic Philippine Sea. © 2020 The Authors.
英文关键词	community structure; mesoscale eddies; Philippine Sea; phytoplankton; primary production; stable isotope
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186549
作者单位	Tianjin Key Laboratory of Marine Resources and Chemistry, Tianjin University of Science and Technology, Tianjin, China; Research Centre for Indian Ocean Ecosystem, Tianjin University of Science and Technology, Tianjin, China; Department of Oceanography, Pusan National University, Busan, South Korea; Marine Environmental Research Center, Korea Institute of Ocean Science and Technology, Busan, South Korea
推荐引用方式 GB/T 7714	Yun M.S.,Kim Y.,Jeong Y.,et al. Weak Response of Biological Productivity and Community Structure of Phytoplankton to Mesoscale Eddies in the Oligotrophic Philippine Sea[J],2020,125(12).
APA	Yun M.S..,Kim Y..,Jeong Y..,Joo H.T..,Jo Y.-H..,...&Lee S.H..(2020).Weak Response of Biological Productivity and Community Structure of Phytoplankton to Mesoscale Eddies in the Oligotrophic Philippine Sea.Journal of Geophysical Research: Oceans,125(12).
MLA	Yun M.S.,et al."Weak Response of Biological Productivity and Community Structure of Phytoplankton to Mesoscale Eddies in the Oligotrophic Philippine Sea".Journal of Geophysical Research: Oceans 125.12(2020).