Intraguild predation by polyps of three scyphozoan jellyfish:Nemopilema nomurai,Aurelia coerulea,and Rhopilema esculentum

作     者：TANG Changsheng SUN Song ZHANG Fang TANG Changsheng;SUN Song;ZHANG Fang

作者机构：Key Laboratory of Marine Ecology and Environmental SciencesInstitute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory of Marine Ecology and Environmental SciencesQingdao National Laboratory for Marine Science and TechnologyQingdao 266071China University of Chinese Academy of SciencesBeijing 100049China Center for Ocean Mega-ScienceChinese Academy of SciencesQingdao 266071China Jiaozhou Bay Marine Ecosystem Research StationChinese Academy of SciencesQingdao 266071China 

出 版 物：《Journal of Oceanology and Limnology》 (海洋湖沼学报（英文）)

年 卷 期：2020年第38卷第6期

页      面：1755-1761页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：Supported by the National Key Research and Development Program of China(No.2017YFC1404405) the Taishan Scholar Climbing Plan to Sun Song,the Shandong Joint Fund for Marine Ecology and Environmental Sciences(No.U1606404) the Aoshan Science and Technology Innovation Project(No.2016ASKJ02-2) 

主　　题：jellyfish bloom polyps intraguild predation nature habitats 

摘      要：Jellyfish blooms occur worldwide and have resulted in serious problems in tourism,fisheries,coastal industries,and the marine *** life cycle of scyphozoan jellyfish consists of a pelagic medusa stage and a benthic polyp *** of asexual reproduction of the polyps determines directly the number of medusae;thus,the polyp stage is the key to understanding the population dynamics of *** nomurai,Aurelia coerulea,and Rhopilema esculentum are three scyphozoan jellyfish commonly inhabit in Chinese coastal *** of *** are easily visible,while those of *** and *** remain yet to be found in the ***,distribution of the medusa indicates that the polyps of all three species may occur *** evaluate the distribution pattern of polyps of the three species and explore intraguild predation by the polyps,we conducted a laboratory experiment that considered the attachment sequence and size relationship of calyx diameter of the *** found that the polyps of *** preyed on polyps of the other two species in all treatments,except when polyps of *** were bigger than those of *** polyps of *** preyed on the polyps of *** only when polyps of *** attached first and were bigger than those of *** of *** polyps were rarely found in the places inhabited by *** *** addition,*** polyps are known to inhabit at depths of less than 20 m in coastal sea,thus,we speculate that *** polyp colonies might occur at depths of more than 20 ***,our finding that polyps of *** aggressively preyed on polyps of other species may help understand other such systems of jellyfish bloom in the world.