Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process

doi:10.3389/fmars.2021.644043

	Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process
	Pan, Jun1,2,3 ; Cheng, Fangping 4,5,6; Yu, Fei 1,2,3,7,8; Shi, Yongqiang9 ; Sun, Fan1,2,7 ; Si, Guangcheng 1,2,3,7; Wei, Chuanjie 1,2,3; Diao, Xinyuan1,2,3 ; Zhao, Yongfang 1,3,10
	2021-09-27
发表期刊	FRONTIERS IN MARINE SCIENCE
卷号	8 页码:11
通讯作者	Yu, Fei(yuf@qdio.ac.cn) ; Shi, Yongqiang(shiyq@ysfri.ac.cn)
摘要	Calanus sinicus, a temperate copepod with a lethal temperature >27 degrees C, is one of the key species in Chinese coastal marine ecosystems. The C. sinicus population increases in spring and declines in early summer annually due to increasing water temperature. Numerous C. sinicus individuals then congregate in the Yellow Sea Cold Water Mass (YSCWM) and remain under the thermocline from early summer to early autumn. Development and reproduction is halted in this cold and foodless bottom water and they avoid ascending to the hot surface water, which is regarded as an over-summering strategy. Based on discrete water sampling approaches, previous studies demonstrated that higher chlorophyll a (Chl a) levels appeared in the mixed hot surface water layer; however, the subsurface chlorophyll a maximum layer (SCML) has seldom been described. In the present study, various probes and a visual plankton recorder (VPR) were used to determine the fine vertical distributions of environmental factors and C. sinicus. VPR observations showed the ecological responses in fine scale and indicated that few C. sinicus individuals ascend at night, the main population preferred to remain below the SCML all day long. The results demonstrated that a constant thin SCML existed in the YSCWM area, and that the SCML location coincided with or was beneath the thermocline and halocline layers, where the temperature was suitable for C. sinicus. The relationship between abundance and Chl a, showed the diel vertical migration trend of C. sinicus to feed at night in the YSCWM area. In addition to temperature as a main influencing factor, dissolved oxygen concentrations and column depth were also influencing factors. Therefore, in addition to avoiding high surface temperature, energy supplement may be an important driving force confining the diel vertical migration of C. sinicus in the Yellow Sea in summer.
关键词	copepod Calanus sinicus Yellow Sea Cold Water Mass diel vertical migration subsurface chlorophyll a maximum layer
DOI	10.3389/fmars.2021.644043
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41806164] ; National Natural Science Foundation of China[41349902] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11020301] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA11020305] ; Natural Science Foundation of Shandong Province[ZR2020QD104] ; International Science Partnership Program of the Chinese Academy of Sciences[133137KYSB20200002]
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology
WOS类目	Environmental Sciences ; Marine & Freshwater Biology
WOS记录号	WOS:000717296900001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/177192
专题	海洋生态与环境科学重点实验室海洋环流与波动重点实验室胶州湾海洋生态系统国家野外研究站
通讯作者	Yu, Fei; Shi, Yongqiang
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 5.Minist Nat Resources, Key Lab Marine Ecosyst Dynam, Hangzhou, Peoples R China 6.Minist Nat Resources, Inst Oceanog 2, Hangzhou, Peoples R China 7.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Qingdao, Peoples R China 8.Pilot Natl Lab Marine Sci & Technol Qingdao, Marine Dynam Proc & Climate Funct Lab, Qingdao, Peoples R China 9.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China 10.Chinese Acad Sci, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao, Peoples R China
第一作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Pan, Jun,Cheng, Fangping,Yu, Fei,et al. Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process[J]. FRONTIERS IN MARINE SCIENCE,2021,8:11.
APA	Pan, Jun.,Cheng, Fangping.,Yu, Fei.,Shi, Yongqiang.,Sun, Fan.,...&Zhao, Yongfang.(2021).Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process.FRONTIERS IN MARINE SCIENCE,8,11.
MLA	Pan, Jun,et al."Vertical Fine-Scale Distribution of Calanus sinicus in the Yellow Sea Cold Water Mass During the Over-Summering Process".FRONTIERS IN MARINE SCIENCE 8(2021):11.

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