Changes in fish diversity and community structure in the central and southern Yellow Sea from 2003 to 2015
文献类型：CNKI期刊论文
| 作者 | Chen YL(陈云龙) ; Dan XJ(单秀娟); Jin XS(金显仕); JOHANNESSEN Arne; Yang T(杨涛); Dai FQ(戴芳群)
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| 发表日期 | 2018-05-15 |
| 出处 | Journal of Oceanology and Limnology
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| 关键词 | dominant species fish community structure multivariate analysis trawl data |
| 英文摘要 | The central and southern Yellow Sea is an important overwintering ground for many fish species in the Bohai Sea and Yellow Sea. For better understanding the status of the fish community after years of heavy exploitation, variations in fish community structure and diversity were analyzed using data from bottom trawls during 2003–2015. Five fish assemblage indices all showed fluctuations without clear trends from 2003 to 2015, yet there were strong positive and significant correlations(P < 0.05) among them. The top-five dominant species accounted for a high weight percentage(49.7%–82.1%) in the annual fish catch. Multivariate analysis showed that two year groups could be pooled for the fish community: Group Ⅰ consisted of the years 2006, 2007, 2008 and 2015, while Group Ⅱ consisted of the years 2003, 2004, 2005, 2009, 2010 and 2014; the groups aggregated with 63.71% similarity, indicating a high level of similarity among all years. The multivariate dispersion values were 1.455 and 0.818 for Groups Ⅰ and Ⅱ, respectively, indicating greater variances in fish assemblage structure in Group Ⅰ than that in Group Ⅱ. Similarity of percentage analysis demonstrated that the average similarities for Group Ⅰ and Group Ⅱ were 71.58% and 67.51%, respectively. Size-spectra analysis revealed no consistent trend in the intercept and slope( P > 0.05); there were also no significant differences between the slope of the size-spectra and fishing ef fort. The catch per unit ef fort and mean individual weight analyses of the whole fish assemblage both showed a significantly decreasing trend over time. Overall, the results showed that the fish community structure in the central and southern Yellow Sea was relatively stable from 2003 to 2015 and the study could be used as a reference for supporting ecosystem-based fishery management. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Aoshan Science&Technology Innovation Program(No.2015ASKJ02-05) ; the Special Fund of the Taishan Scholar Project |
| 卷 | v.36期:03页:207-219 |
| 语种 | 英文; |
| 分类号 | S931.1 |
| ISSN号 | 2096-5508 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188935]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.InstituteofOceanology,ChineseAcademyofSciences 2.KeyLaboratoryofSustainableDevelopmentofMarineFisheries,MinistryofAgriculture,ShandongProvincialKeyLaboratoryofFisheryResourcesandEcologicalEnvironment,YellowSeaFisheriesResearchInstitute,ChineseAcademyofFisherySciences 3.UniversityofChineseAcademyofSciences 4.FunctionLaboratoryforMarineFisheriesScienceandFoodProductionProcesses,QingdaoNationalLaboratoryforMarineScienceandTechnology 5.DepartmentofBiology,UniversityofBergen |
| 推荐引用方式 GB/T 7714 | Chen YL,Dan XJ,Jin XS,et al. Changes in fish diversity and community structure in the central and southern Yellow Sea from 2003 to 2015. 2018. |
入库方式： OAI收割
来源：海洋研究所
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