Diversity and community structure of macrobenthos in the Hengsha East Shoal
In order to understand the current situation of large animals in the intertidal zone after reclamation in Hengsha East Shoal,the macrobenthic samples were taken in the natural tidal flat and the terrestrial zone of Hengsha East Shoal in October 2019(autumn)and April 2020(spring).A total of 26 species were indentified in survey area,and the number of macrobenthos species in the natural tidal flat was higher than the terrestrial zone.The dominant species in natural tidal flats and the terrestrial zone were obviously different.The average abundance of macrobenthos in the terrestrial zone(481.60 ind./m2)was higher than the natural tidal flat(302.40 ind./m2),and the average biomass of the natural tidal flat(84.50 g/m2)was higher than the terrestrial zone(6.71 g/m2).The diversity indices(H',J,d)of macrobenthos in the natural tidal flat were higher than the terrestrial zone.The results of Cluster and MDS showed that there were significant differences in the different habitats.The ABC curves indicated that the macrobenthic community of the terrestrial zone had been changed while the nature tidal flat were relatively undisturbed.
Hengsha East Shoalmacrobenthosdiversitycommunity structure
NETL
NSTL
万方数据
维普
