气候变化领域集成服务门户(CCPortal): Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean

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DOI	10.1029/2019GB006258
	Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean
	Ikenoue T.; Kimoto K.; Okazaki Y.; Sato M.; Honda M.C.; Takahashi K.; Harada N.; Fujiki T.
发表日期	2019
ISSN	0886-6236
EISSN	1944-9224
起始页码	1146
结束页码	1160
卷号	33 期号:8
英文摘要	Phaeodaria, which comprise one group of large, single-celled eukaryotic zooplankton, have been largely ignored by past marine biological studies because Phaeodaria and their delicate skeletons are liable to collapse. As a result, collection and quantification of specimens are difficult, and seasonal changes of phaeodarian abundance have not been thoroughly studied. The transport of biogenic elements by sinking phaeodarians has been estimated for only a few representative species. Sinking particles >1 mm in size and swimmers have traditionally been excluded when estimating sinking particle fluxes. The focus of this study is the large number of phaeodarians among the >1-mm sinking particles collected in the western North Pacific from June 2014 to July 2015. Careful sorting by microscopic examination and chemical analyses revealed that phaeodarians accounted for up to about 10% of the organic carbon in all sinking particles and accounted for a mean of 33% of the organic carbon in the >1-mm sinking particles. The high-standing stocks of phaeodarians at depths of 150–1,000 m in the mesopelagic twilight zone suggested that particles sinking from the euphotic zone as aggregates and fecal pellets can be efficiently exported to the deep sea by the ballasting effect of large phaeodarian particles rich in organic carbon. © 2019. The Authors.
英文关键词	biological carbon pump; carbon cycle; mesopelagic twilight zone; particulate organic carbon; phaeodaria; sediment trap
语种	英语
scopus关键词	biological pump; carbon cycle; euphotic zone; flux measurement; marine environment; mesopelagic zone; particulate organic carbon; sediment trap; twilight; zooplankton; Pacific Ocean; Pacific Ocean (North); Eukaryota; Phaeodarea
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129713
作者单位	Central Laboratory, Marine Ecology Research Institute, Chiba, Japan; Research and Development Center for Global Change, JAMSTEC, Yokosuka, Japan; Department of Earth and Planetary Sciences, Graduate School of Science, Kyushu University, Fukuoka, Japan
推荐引用方式 GB/T 7714	Ikenoue T.,Kimoto K.,Okazaki Y.,et al. Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean[J],2019,33(8).
APA	Ikenoue T..,Kimoto K..,Okazaki Y..,Sato M..,Honda M.C..,...&Fujiki T..(2019).Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean.Global Biogeochemical Cycles,33(8).
MLA	Ikenoue T.,et al."Phaeodaria: An Important Carrier of Particulate Organic Carbon in the Mesopelagic Twilight Zone of the North Pacific Ocean".Global Biogeochemical Cycles 33.8(2019).