Community Structure of Macrobenthos in Intertidal Zone of Guanhe Estuary
Macrobenthos investigation was conducted in 2 sections(SEC1 and SEC2)in intertidal zone of Guanhe estuary in Sept.2021.Dominance index,Shannon-Weiner index and Bray-Curtis index was ap-plied to evaluate the macrobenthos community structure characteristics.The results showed that 27 spe-cies of macrobenthos in 7 phyla were collected and identified,including 12 species of annelids,6 species of arthropoda,4 species of mollusks,2 species of nemertinea,and 1 species of chordata,echinodermata and sipuncula respectively.Perinereis aibuhitensis,Pista cristata,Helice tientsinensis and Palaemon gravieri was the dominant species in SEC1.Corophium sinense,Nephtys sp.and Protankyra bidentata was the dominannt species in SEC2.Both density and biomass of the macrobenthos in SEC2 was higher than in SEC1.Bray-Curtis index showed that macrobenthos community structure of SEC1 and SEC2 showed remarked difference.Shannon-Weiner index of the macrobenthos showed that the ecological en-vironment of SEC1 and SEC2 was in light pollution and medium pollution respectively.
NETL
NSTL
万方数据
