Community structure of zooplankton in the sea area near Xiaoqing River estuary of Laizhou Bay in spring and its relationship with environmental factors
ZHANG Liang
ZHANG Shaoping
SU Kai
SUN Bin
ZHAO Chuanting
JI Yinglu
GU Xueji
Abstract：To know the community structure of zooplankton in the sea area near Xiaoqing River estuary of Laizhou Bay and its relationship with environmental factors,the eutrophication degree of water qual-ity,species composition,dominant species,community structure of zooplankton and the correlation be-tween species diversity and environmental factors were analyzed based on the investigation data in March(spring),2022.The results showed that eutrophication occurred in all stations in the investiga-ted sea area,and a total of 12 species and 3 taxa of zooplankton were found.The average individual density of zooplankton was 1100.0 inds./m3,the average biomass(wet weight)was 732.0 mg/m3,the average Shannon-Wiener index(H'),Margalef's species richness diversity(d)and Pielou's evenness index(J')were 1.71,0.93,0.67,respectively.The dominant species were Pseudodiaptomus pople-sia,Sinocalanus tenellus,Acartia omorii and Eurytemora pacifica.Cluster analysis showed that the zooplankton in the investigation area can be divided into three groups.The results of correlation analy-sis showed that water temperature was an important environmental factor affecting the biomass and in-dividual density of zooplankton in the sea area.
Keywords：Xiaoqing River estuaryzooplanktondominant speciescommunity structureenviron-mental factor
Publication Date：2025-10-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：9( 129-137 )