Changes in the population structure of Calanus sinicus during summer–autumn in the southern Yellow Sea

IOCAS-IR

	Changes in the population structure of Calanus sinicus during summer–autumn in the southern Yellow Sea
	Yongqiang Shi; Song Sun; Chaolun Li; Guangtao Zhang; Bo Yang ; Peng Ji
发表期刊	Acta Oceanologica Sinica
ISSN	0253-505X
	2019-08-13
出版年	2019
卷号	v.38 期号:08 页码:60-67
文献类型	CNKI期刊论文
摘要	Calanus sinicus is a calanoid copepod widely distributed in coastal waters of China and Japan, and oversummering strategies may have major impacts on their population dynamics which in turn affect local marine food web structure. The abundance, stage composition, and sex composition of the planktonic copepod C. sinicus were studied from August to October 2002 in the southern Yellow Sea to understand how its population recovers from the over-summering state. Results showed that C. sinicus had low reproduction in August due to high temperature, except in waters near the Cheju Island with rich food and moderate bottom temperature, but the reproduction rates here decreased in September–October as food availability declined. When temperature dropped in September–October, C. sinicus actively propagated in coastal shallow waters. However, reproduction rates of C. sinicus individuals inhabiting the Yellow Sea Cold Water Mass(YSCWM) remained low during the three months of the study. The percentage of C. sinicus females was high during the reproductive period, which suggests that the sex composition of adult C. sinicus may reflect whether or not the population is in the reproductive mode.Numerous fifth copepodite stage(CV) C. sinicus aggregated in the YSCWM in a suspended developmental stage during the three months of this study, and they potentially served as the parental individuals for population development when conditions became optimal for reproduction later in the year.
关键词	Calanus sinicus stage composition sex composition population structure Yellow Sea Cold Water Mass life history strategy
CNKI专辑号	A;
CNKI专辑名称	基础科学;
CNKI专题号	A006;
CNKI专题名称	生物学;
分类号	Q958.8
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	The NSFC-Shandong Joint Fund for Marine Ecology and Environmental Sciences under contract No.U1606404 ; the National Natural Science Foundation of China under contract No.41230963 ; the National Basic Research Program(973 program)of China under contract Nos 2011CB403604 and G1999043708 ; the Strategic Priority Research Program of the Chinese Academy of Sciences under contract No.XDA11020305
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/188487
专题	中国科学院海洋研究所
作者单位	1.CASKeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 2.KeyLaboratoryofSustainableDevelopmentofMarineFisheriesofMinistryofAgricultureandRuralAffairs,YellowSeaFisheriesResearchInstitute,ChineseAcademyofFisherySciences 3.LaboratoryforMarineEcologyandEnvironmentalScience,PilotNationalLaboratoryforMarineScienceandTechnology(Qingdao) 4.JiaozhouBayNationalMarineEcosystemResearchStation,InstituteofOceanology,ChineseAcademyofSciences 5.UniversityofChineseAcademyofSciences 6.CenterforOceanMegaScience,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Yongqiang Shi,Song Sun,Chaolun Li,等. Changes in the population structure of Calanus sinicus during summer–autumn in the southern Yellow Sea. 2019.