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Two new species of medusae(Cnidaria) from the coastal waters of the northern Beibu Gulf

Acta Oceanologica Sinica 2020年第12期39卷 82-89页

作者： Xiaoyin Chen Yanyan Yang Yanguo Wang Zhenzu Xu Mao Lin Chunguang Wang Third Institute of Oceanography Ministry of Nature ResourcesXiamen 361005China University of Chinese Academy of Sciences Beijing 100049China Collaborative Innovation Center of Deep Sea Biology Zhejiang UniversityHangzhou 310012China College of Ocean and Earth Science Xiamen UniversityXiamen 361005China

medusae in 116 samples collected from the coastal waters of the northern Beibu Gulf during four seasonal oceanographic cruises from October 2017 to August 2018 were *** total,34 species were *** of the species are new to science,Proboscidactyla pentacanalis Xu,Chen&Yang *** Helgicirrha apapillata Xu,Chen&Wang ***.,and three species are newly recorded in the Beibu Gulf,i.e.,Hydractinia vacuolata Xu&Huang,2006,Proboscidactyla flavicirrata Brandnt,1834 and Phialella macrogona Xu,Huang&Wang,*** of the species were deposited at the Third Institute of Oceanography,Ministry of Natural Resources.

关键词： medusae Cnidaria new species coastal waters northern Beibu Gulf

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Causal analysis of the diversity of medusae in East China Sea

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Frontiers in Biology 2008年第3期3卷 300-307页

作者： Zhaoli XU Mao LIN Qian GAO Key and Open Laboratory of Marine and Estuary Fisheries Ministry of Agriculture of ChinaEast China Sea Fisheries Research InstituteChinese Academy of Fisheries SciencesShanghai 200090China The Third Institute of Oceanography State Oceanic AdministrationXiamen 361005China

Based on the maritime data collected from 23°30′-33°00′N and 118°30′-128°00′E of the East China Sea(ECS)in four seasons during 1997-2000,the dynamics of medusae diversity and their causes were analyzed.A total of 103 medusae species were identified,and these species mainly distributed in the southern and north-ern offshore areas of the *** diversity index(H′)of medusae was higher in the south than those in the north,higher in summer and winter than in spring and autumn,and higher in offshore than in the nearshore *** species number was closely correlated with H′value,whereas the abundance of species had no significant rela-tionship with the diversity *** lower H′value of the nearshore in spring and autumn resulted from the aggregation of Muggiaea atlantica in the south nearshore and Diphyes chamissonis in the north *** addition,water temperature,followed by salinity,is the main environmental factor influencing the distribution of species *** H′value was related to the water temperature at the 10 m layer in winter and spring,and it was associated with the surface water temperature in summer and with the 10 m-salinity-layer in *** spring and summer,the isoline distribution of H′value reflected the direction of the Taiwan Warm Current and the variation of the water masses in the *** winter,the isoline of the H′value indicated the incursion of Kuroshio *** conclusion,the H′isoline is an good indicator for water masses in ECS.

关键词： East China Sea zooplankton medusae diversity causal analysis

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Molecular identifi cation and population diff erentiation of Aurelia *** in sea cucumber aquaculture ponds of northern China

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Journal of Oceanology and Limnology 2021年第3期39卷 989-996页

作者： Saijun PENG Qingqing LIU Lei WANG Tingting SUN Tamara SHIGANOVA Zhijun DONG Muping Coastal Environment Research Station Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China Shirshov Institute of Oceanology Russian Academy of Sciences Moscow 117997 Nakhimovskyi pr.36Russia

Aurelia *** have been reported to form blooms in sea cucumber aquaculture ponds in the Bohai and Yellow *** identify the species,we carried out a genetic analysis of Aurelia *** and medusae based on mitochondrial 16 S rRNA *** offour Aurelia *** populations were collected in sea cucumber aquaculture ponds and samples offour Aurelia *** populations were collected in coastal *** a BLASTn search,we found that both the ephyrae collected in the aquaculture ponds and medusae collected in coastal waters belong to Aurelia *** haplotypes were recovered from the 16 S rRNA *** overall haplotype diversity and nucleotide diversity of the 166 *** individuals were 0.686%and 0.329%,respectively,indicating high haplotype diversity and low nucleotide ***,the haplotype diversity of ephyrae populations were generally lower than that of medusae populations with close sampling *** genetic differentiation between ephyrae populations collected in the sea cucumber aquaculture ponds and *** medusae collected in coastal waters was not significant,suggesting the ephyrae populations in the sea cucumber culture ponds were part of the same genetic group as the medusae populations in the coastal *** analysis of the 16 S rRNA region revealed that there was no significant correlation between the haplotypes and the geographic distribution of *** fixation index values showed significant genetic differentiation and limited gene flow between *** population of Weifang and other locations.

关键词： Aurelia coerulea medusae ephyrae 16S r RNA gene analyzes genetic differentiation genetic variability

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