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Dietary preferences and potential ecological impact on the zooplankton community of Nemopilema nomurai based on stable isotope and fatty acid analyses
Wang, Junjian1,3,5; Li, Chaolun1,2,4,5; Yang, Guang1,2,4; Tao, Zhencheng1,2,4; Wang, Yanqing6; Xian, Haochen1,5
2022-02-17
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Pages12
Corresponding AuthorLi, Chaolun(lcl@qdio.ac.cn)
AbstractInformation 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.
KeywordNemopilema nomurai fatty acid stable isotope dietary preferences
DOI10.1007/s00343-021-1024-y
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000757231400010
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/178048
Collection海洋生态与环境科学重点实验室
Corresponding AuthorLi, Chaolun
Affiliation1.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
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences;  Center for Ocean Mega-Science, Chinese Academy of Sciences
Recommended Citation
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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