Effect of diurnal temperature difference on lipid accumulation and development in Calanus sinicus(Copepoda:Calanoida)
文献类型：CNKI期刊论文
| 作者 | Zhou KL(周孔霖) ; Sun S(孙松)
|
| 发表日期 | 2017-07-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | Calanus sinicus diurnal temperature difference lipid accumulation over-summering |
| 英文摘要 | 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. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | 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) |
| 卷 | v.35期:04页:25-33 |
| 语种 | 英文; |
| 分类号 | S917.4 |
| ISSN号 | 0254-4059 |
| 源URL | [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. |
入库方式： OAI收割
来源：海洋研究所
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