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Predation effect on copepods by the giant jellyfish Nemopilema nomurai during the early occurrence stage in May in the northern East China Sea and southern Yellow Sea, China

文献类型：期刊论文

作者Wang, Peng-peng1,2,3; Zhang, Fang1,2,3,4; Sun, Song1,2,3,4,5
刊名MARINE POLLUTION BULLETIN
出版日期2023
卷号186页码:15
ISSN号0025-326X
关键词Jellyfish bloom Scyphomedusae Predation pressure Zooplankton Diet Prey competition
DOI10.1016/j.marpolbul.2022.114462
通讯作者Zhang, Fang(zhangfang@qdio.ac.cn) ; Sun, Song(sunsong@qdio.ac.cn)
英文摘要Massive blooms of Nemopilema nomurai have occurred recently across East Asian waters. They are potentially important as zooplankton predators, as well as being competitors for prey with zooplanktivorous fish. Few studies have estimated the predation effects on zooplankton by N. nomurai in situ. To quantify the natural diets and feeding rates and estimate the predation effects, N. nomurai medusae were collected in the northern East China Sea and southern Yellow Sea, one of the principal nursery grounds of this jellyfish, during May 2019. The gut contents indicated that copepods were an important food source for N. nomurai; copepods <1000 mu m rep-resented the bulk of total prey intake in number (> 99 %). Linear regression analyses showed that the copepods number in the gut contents was significantly influenced by medusa diameter and prey abundance. Calculations using the above data indicated that one medusa (mean diameter: 26.06 +/- 9.73 cm) consumed approximately 5248 +/- 2768 of copepods daily. However, even the maximum predation pressure was <0.1 % of the total co-pepods standing stock daily due to the small diameter and low density/biomass of N. nomurai medusae in May 2019. The data presented here suggested that the predation effects of N. nomurai on copepods were low and might not reduce prey availability to fish with diets consisting mainly of copepods during the early occurrence stage of the N. nomurai population.
WOS关键词SCYPHOMEDUSA AURELIA-AURITA ; SCYPHOZOA RHIZOSTOMEAE ; STOMOLOPHUS-MELEAGRIS ; POPULATION-DYNAMICS ; PREY SELECTIVITY ; CYANEA-CAPILLATA ; DIETARY SHIFTS ; COASTAL LAGOON ; ZOOPLANKTON ; BLOOMS
资助项目National Natural Science Foundation of China[42076166] ; National Natural Science Foundation of China[42130411] ; CASCSIRO Project Fund [CAS][GJHZ1888] ; Mount Tai Scholar Climbing Plan ; Natural Science Foundation of Shandong Province[ZR2021QD061] ; Innovation Team of Fishery Resources and Ecology in the Yellow Sea and Bohai Sea[2020TD01]
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
出版者PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号WOS:000993914300001
源URL[http://ir.qdio.ac.cn/handle/337002/183077]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Zhang, Fang; Sun, Song
作者单位1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
4.Univ Chinese Acad Sci, Coll marine Sci, Qingdao 266520, Peoples R China
5.Chinese Acad Sci, Jiaozhou Bay Marine Ecosyst Res Stn, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Peng-peng,Zhang, Fang,Sun, Song. Predation effect on copepods by the giant jellyfish Nemopilema nomurai during the early occurrence stage in May in the northern East China Sea and southern Yellow Sea, China[J]. MARINE POLLUTION BULLETIN,2023,186:15.
APA Wang, Peng-peng,Zhang, Fang,&Sun, Song.(2023).Predation effect on copepods by the giant jellyfish Nemopilema nomurai during the early occurrence stage in May in the northern East China Sea and southern Yellow Sea, China.MARINE POLLUTION BULLETIN,186,15.
MLA Wang, Peng-peng,et al."Predation effect on copepods by the giant jellyfish Nemopilema nomurai during the early occurrence stage in May in the northern East China Sea and southern Yellow Sea, China".MARINE POLLUTION BULLETIN 186(2023):15.

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来源：海洋研究所

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