Experimental clearance rates of Aurelia coerulea ephyrae and medusae,and the predation impact on zooplankton in Jiaozhou Bay
文献类型：CNKI期刊论文
| 作者 | WANG Pengpeng; ZHANG Fang; SUN Song ; WANG Weicheng; WAN Aiyong; LI Chaolun
|
| 发表日期 | 2020-07-15 |
| 出处 | Journal of Oceanology and Limnology
 |
| 关键词 | scyphomedusae predation pressure prey selection zooplankton control jellyfish bloom |
| 英文摘要 | The population explosion of jellyfish Aurelia coerulea occurred in Jiaozhou Bay,China in 2009.The potential predation impact of A.coerulea on zooplankton was investigated.Population clearance potential and residence time(t_(1/2)) for copepods were calculated from laboratory clearance rates and measurements of jellyfish size and abundance from May to August 2009 in Jiaozhou Bay.Clearance rates varied widely with prey organisms,but they were not significantly different among various prey concentrations.Medusae captured rotifers,fish larvae and hydromedusae more efficiently than fish eggs,copepods and chaetognaths.Ephyrae captured rotifers and hydromedusae more efficiently than fish larvae and copepods.Clearance rate linearly increased with the cro s s sectional area of A.coerulea(size from 0.3 to7.1 cm).Water temperature also had a marked effect on clearance rate and this was related to the increased beat freque ncy as water temperature increased.In early May 2009,A.coerulea potentially cleared the volume of water in the Bay less than 0.001 times a day,but this value was estimated to be more than 0.3 times a day in July.The t_(1/2) for copepods was less than 6 d in June and July.Abundances of copepods,hydromedusae and chaetognaths were extremely low in 2009 compared to 2008 and 2010(jellyfish non-bloom years).Large predation pressure by the A.coerulea population occurred to control zooplankton communities in Jiaozhou Bay.A.coerulea,when present at a high population level,can be a keystone species in Jiaozhou Bay and control the trophic structure here. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Marine S&T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)(No.2018SDKJ0504-3) ; the National Key Research and Development Program of China (No.2017YFC1404405) ; Mount Tai Scholar Climbing Plan to SUN Song |
| 卷 | v.38期:04页:399-412 |
| 语种 | 英文; |
| 分类号 | Q958.8 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188102]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CenterforOceanMega-Science,ChineseAcademyofSciences 2.CASKeyLaboratoryofMarineEcologyandEnvironmentalSciences,InstituteofOceanology,ChineseAcademyofSciences 3.LaboratoryforMarineEcologyandEnvironmentalSciences,QingdaoNationalLaboratoryforMarineScienceandTechnology 4.UniversityofChineseAcademyofSciences 5.JiaozhouBayMarineEcosystemResearchStation,ChineseAcademyofSciences |
| 推荐引用方式 GB/T 7714 | WANG Pengpeng,ZHANG Fang,SUN Song,et al. Experimental clearance rates of Aurelia coerulea ephyrae and medusae,and the predation impact on zooplankton in Jiaozhou Bay. 2020. |
入库方式： OAI收割
来源：海洋研究所
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