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

doi:10.1007/s00343-017-6039-z

	Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus (Copepoda: Calanoida)
	Zhou Konglin1,2,3 ; Sun Song1,3,4
	2017-07-01
发表期刊	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
卷号	35 期号:4 页码:745-753
文章类型	Article
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 19A degrees C) and at three temperature regimes that mimicked the temperature variations experienced during diurnal vertical migration (10-13A degrees C, 10-16A degrees C, and 10-19A degrees C) 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 (10-16A degrees C and 10-19A degrees C) promoted greater lipid accumulation (1.9-2.1 times) than a constant temperature of either 16A degrees C or 19A degrees C, 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
DOI	10.1007/s00343-017-6039-z
收录类别	SCI
语种	英语
WOS记录号	WOS:000403701200004
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
版本	出版稿
条目标识符	http://ir.qdio.ac.cn/handle/337002/137149
专题	海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhou Konglin,Sun Song. Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus (Copepoda: Calanoida)[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(4):745-753.
APA	Zhou Konglin,&Sun Song.(2017).Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus (Copepoda: Calanoida).CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(4),745-753.
MLA	Zhou Konglin,et al."Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus (Copepoda: Calanoida)".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.4(2017):745-753.

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