海洋科学2025，Vol.49Issue(1)：1-13,13.DOI:10.11759/hykx20240911004
夏季昌邑海域东、西调查断面大型底栖动物群落结构差异及其影响因素
Macrobenthic community structure and its influencing fac-tors in two sea sections near Changyi in the summer
摘要
Abstract
Based on the macrobenthos and environmental data collected in July 2023 in two sea sections near Changyi in Laizhou Bay,the species composition,dominant species,abundance,biomass,and diversity were stud-ied and compared with the historical data.Additionally,the macrobenthic community structure and its influencing factors were also analyzed.A total of 55 macrobenthic species were collected,including 24 of Polychaeta,14 of Mollusca,12 of Crustacea,four of Echinodermata,and one each of other groups.The dominant species were Iri-dona iridescens,Chaetozone setosa,etc.The biomass,Margalef richness index,and Shannon-Wiener diversity in-dex were significantly higher in the western survey section than in the eastern section.Sampling sites in the two sections were roughly classified into two community groups according to the cluster analysis and NMDS ordination.PERMANOVA indicated the species composition between the two groups to vary markedly.The species contrib-uting the most to the difference were Phyllodoce chinensis,Iridona iridescens,etc,as revealed by the SIMPER analysis.Mantel analysis showed that Mollusca was influenced by most environmental variables,and CCA indi-cated that median particle size;Fe and total nitrogen in the sediment;and nitrite,temperature,and pH in the bottom water can remarkably affect the macrobenthic community.Compared with historical data,the species number in the Changyi sea area was less than that in the whole sea or other regions in Laizhou Bay.关键词
大型底栖动物/群落结构/环境因子/莱州湾/渤海Key words
macrobenthos/community structure/environmental factors/Laizhou Bay/Bohai Sea分类
海洋学引用本文复制引用
赵华,徐勇,李新正,韩庆喜,张悦,王金宝,隋吉星..夏季昌邑海域东、西调查断面大型底栖动物群落结构差异及其影响因素[J].海洋科学,2025,49(1):1-13,13.基金项目
国家重点研发计划专项课题(2022YFF0802202) （2022YFF0802202）
国家自然科学基金项目(42006078,41876178) （42006078,41876178）
中国科学院战略性先导科技专项项目(XDA23050304)the National Key R&D Program of China,No.2022YFF0802202 （XDA23050304）
the National Scientific Foundation of China,Nos.42006078,41876178 （）
the Strategic Priority Research Program of Chinese Academy of Sciences,No.XDA23050304 （）
