Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus(Copepoda:Calanoida)

IOCAS-IR

	Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus(Copepoda:Calanoida)
	Zhou KL(周孔霖); Sun S(孙松)
发表期刊	Chinese Journal of Oceanology and Limnology
ISSN	0254-4059
	2017-07-15
出版年	2017
卷号	v.35 期号:04 页码:25-33
文献类型	CNKI期刊论文
摘要	Calanus sinicus,the dominant copepod in the Yellow Sea,develops a large oil sac in late spring to prepare for over-summering in the Yellow Sea Cold Water Mass(YSCWM).The lipid accumulation mechanism for the initiation of over-summering is unknown.Here,we cultured C3 copepodites at four constant temperatures(10,13,16,and 19℃) and at three temperature regimes that mimicked the temperature variations experienced during diurnal vertical migration(10-13℃,10-16℃,and 10-19℃) for 18 days to explore the effects of temperature differences on copepod development and lipid accumulation.C.sinicus stored more lipid at low than at high temperatures.A diurnal temperature difference(10-16℃ and 10-19℃)promoted greater lipid accumulation(1.9-2.1 times) than a constant temperature of either 16℃ or 19℃,by reducing the energy cost at colder temperatures and lengthening copepodite development.Thereafter,the lipid reserve supported gonad development after final molting.Only one male developed in these experiments.This highly female-skewed sex ratio may have been the result of the monotonous microalgae diet fed to the copepodites.This study provides the first evidence that diurnal temperature differences may promote lipid accumulation in C.sinicus,and provides a foundation for future investigations into the mechanisms involved in over-summering in the YSCWM.
关键词	Calanus sinicus diurnal temperature difference lipid accumulation over-summering
CNKI专辑号	A;D;
CNKI专辑名称	基础科学;农业科技;
CNKI专题号	D052;
CNKI专题名称	水产和渔业;
分类号	S917.4
收录类别	中科院核心 ; 中科院扩展
语种	英文;
资助项目(基金）	Supported by the State Key Program of National Natural Science Foundation of China(No.41230963) ; the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDA11020305) ; the NSFC-Shandong Joint Fund for Marine Ecology and Environmental Sciences(No.U1406403)
文献类型	CNKI期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/189244
专题	中国科学院海洋研究所
作者单位	1.KeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 2.UniversityofChineseAcademyofSciences 3.LaboratoryforMarineEcologyandEnvironmentalScience,QingdaoNationalLaboratoryforMarineScienceandTechnology 4.JiaozhouBayMarineEcosystemResearchStation,InstituteofOceanology,ChineseAcademyofSciences
推荐引用方式 GB/T 7714	Zhou KL,Sun S. Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus(Copepoda:Calanoida). 2017.