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Zooplankton abundance, biovolume and size spectra at western boundary currents in the subtropical North Pacific during winter 2012
Dai, Luping1,2; Li, Chaolun1; Yang, Guang1; Sun, Xiaoxia3
2016-03-01
Source PublicationJOURNAL OF MARINE SYSTEMS
Volume155Issue:2016Pages:73-83
SubtypeArticle
AbstractHorizontal changes in mesozooplankton abundance, biovolume and size spectra at western boundary currents in the subtropical North Pacific during winter 2012 were evaluated by ZooScan measurement on samples collected by net towing from 23 stations. Zooplankton abundance and biovolume ranged from 35.1 to 456.8 ind.m(-3) and 43 to 231.7 mm(3) m(-3), respectively. Copepoda were the most dominant species, followed by Chaetognatha and Tunicata. According to the Bray-Curtis cluster analysis based on biovolume of zooplankton size classes of each taxonomic group at intervals of 1 (log(2) mm(3) ind.(-1)) between 6 and 12 and considering the effect of regional factors, zooplankton communities were classified into four groups, which basically coincided with the geographical patterns of different currents: the North Equatorial Current (NEC), the North Equatorial Counter Current (NECC), the Kuroshio Current (NC), and the Mindanao Eddy (ME), respectively. The largest and lowest biovolumes were observed in the NECC region and the NEC region, respectively, and both were dominated by the 0.3 to 1 mm equivalent spherical diameter (ESD) size class, while the ME region was dominant by the 1 to 2 mm ESD size class. The slopes of the normalized biovolume size spectra for each group were slightly lower than -1 (range from -0.85 to -0.92), which indicates that zooplankton communities in the study area were characterized by low productivity and high energy transfer efficiency. (C) 2015 Elsevier B.V. All rights reserved.
KeywordZooplankton Normalized Biovolume Size Spectra Zooscan Epipelagic Zone Western Pacific Western Boundary Currents
DOI10.1016/j.jmarsys.2015.11.004
Indexed BySCI
Language英语
WOS IDWOS:000369210000007
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/112450
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Ecosyst Res Network, Jiaozhou Bay Marine Ecosyst Res Stn, 7 Nanhai Rd, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
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Dai, Luping,Li, Chaolun,Yang, Guang,et al. Zooplankton abundance, biovolume and size spectra at western boundary currents in the subtropical North Pacific during winter 2012[J]. JOURNAL OF MARINE SYSTEMS,2016,155(2016):73-83.
APA Dai, Luping,Li, Chaolun,Yang, Guang,&Sun, Xiaoxia.(2016).Zooplankton abundance, biovolume and size spectra at western boundary currents in the subtropical North Pacific during winter 2012.JOURNAL OF MARINE SYSTEMS,155(2016),73-83.
MLA Dai, Luping,et al."Zooplankton abundance, biovolume and size spectra at western boundary currents in the subtropical North Pacific during winter 2012".JOURNAL OF MARINE SYSTEMS 155.2016(2016):73-83.
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