Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses

doi:10.1007/s00343-021-1024-y

	Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses
	Wang, Junjian 1,3,5; Li, Chaolun1,2,4,5 ; Yang, Guang 1,2,4; Tao, Zhencheng 1,2,4; Wang, Yanqing 6; Xian, Haochen 1,5
	2022-02-17
发表期刊	JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN	2096-5508
页码	12
通讯作者	Li, Chaolun(lcl@qdio.ac.cn)
摘要	Information on the dietary composition and food preferences of the giant jellyfish Nemopilema nomurai is important for understanding the trophic drivers of jellyfish outbreaks and their ecological consequences. We used fatty acid (FA) and stable isotope (SI) biomarkers to analyze the diet of N. nomurai from the Yellow Sea in August 2016. N. nomurai was found at all sampling stations, with abundances ranging from 59 inds./km(2) to 1 651 inds./km(2). There were no significant differences between large (>80 cm in diameter) and small (20-30 cm in diameter) medusae, either in FA compositions or in SI values, which suggests that large and small jellyfish have the same food composition and similar trophic levels. Compared to other Zooplanktons, the relatively high levels of C20:4n-6 in total FAs (similar to 12%) indicates that organic detritus contributes considerably to the food composition of the jellyfish. The mixed model Stable Isotope Analysis in R (SIAR) revealed that N. nomurai tended to prey on smaller organisms (<1 000 mu m in diameter) which comprised about 70% of its diet. This means the N. nomurai blooms will put high feeding pressure on the small plankton. The similar SI values and FA composition indicates that krill may share the same food resources with N. nomurai, which suggests that the jellyfish blooms may affect krill populations as a result of food competition.
关键词	Nemopilema nomurai fatty acid stable isotope dietary preferences
DOI	10.1007/s00343-021-1024-y
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2017YFC1404401] ; National Key Research and Development Program of China[2017YFC1404402] ; National Natural Science Foundation of China[41706189]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS类目	Limnology ; Oceanography
WOS记录号	WOS:000757231400010
出版者	SCIENCE PRESS
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/178048
专题	海洋生态与环境科学重点实验室
通讯作者	Li, Chaolun
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 3.North China Sea Marine Forecasting Ctr State Ocea, Qingdao 266100, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Dept Engn & Technol, Inst Oceanol, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
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	Wang, Junjian,Li, Chaolun,Yang, Guang,et al. Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2022:12.
APA	Wang, Junjian,Li, Chaolun,Yang, Guang,Tao, Zhencheng,Wang, Yanqing,&Xian, Haochen.(2022).Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,12.
MLA	Wang, Junjian,et al."Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2022):12.

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