Study on the community structural variation of macrobenthos and impact factors in the adjacent sea area of Qinhuangdao Estuary in summer

LI Li; ZHANG Jian-le; NIU Ji-zhu; SHI Wei-jie; MA Xin

doi:10.3969/j.issn.1001-909X.2014.04.011

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Journal of Marine Sciences ›› 2014, Vol. 32 ›› Issue (4) : 83-89. DOI: 10.3969/j.issn.1001-909X.2014.04.011

Study on the community structural variation of macrobenthos and impact factors in the adjacent sea area of Qinhuangdao Estuary in summer

LI Li, ZHANG Jian-le, NIU Ji-zhu, SHI Wei-jie, MA Xin

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Abstract

Community characteristics of macrobenthos had been studied in Qinhuangdao Estuary in summer of 2009 and 2012. Multivariate analysis methods were utilized to analyze the characteristics of macrobenthic communities and environmental factors. The result showed that:(1)Polychaeta and Arthropod were the dominant groups. The species and abundance increased from estuary to open sea in 2009 and 2012. Compared with 2009, the species decreased, the dominant species changed obviously, but the dominance of species showed little variation in 2012.(2)The total biomass composition of macrobenthos changed obviously. The dominant groups of macrobenthic community changed distinctly in 2009 and 2012. (3) The species were grouped into three ecotypes in 2009, while the species were grouped into four ecotypes in 2012, and one-way ANOSIM test revealed significant differences from 2009 to 2012. The species which provided main dissimilarity of community structure were significant differences from 2009 to 2012. (4) The results of BIOENV and BVSTEP analysis implied that depth and DIP were the most important factors affecting macrobenthos community in summer of 2009; while depth, salinity, and TOC were the most important factors affecting macrobenthos community in summer of 2012.

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macrobenthos / community structure / environmental factors / Qinhuangdao

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LI Li, ZHANG Jian-le, NIU Ji-zhu, SHI Wei-jie, MA Xin. Study on the community structural variation of macrobenthos and impact factors in the adjacent sea area of Qinhuangdao Estuary in summer[J]. Journal of Marine Sciences. 2014, 32(4): 83-89 https://doi.org/10.3969/j.issn.1001-909X.2014.04.011

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