Title: The Community Structure of Zoobenthos and Bioassessment of Water Quality of the Dongjiang River
Abstract: The community of zoobenthos along the mainstream of Dongjiang River,Guangdong Province of China,has been investigated from July 2009.A total of 28 species were collected from 43 sampling sites,and the density varied from 26 ind/m2 to 2 167 ind/m2.16 species were aquatic insects,6 species molluses,5 species oligochaeta animals and 1 species hirudinea.The survey found that Aulodrilus sp.(53.5%) was the most frequently found anong all the zoobenthos.According to some evaluation criterions,five biotic indexes were used to study water quality,and environment biology analysis were done with physical-chemical monitoring data.Biology Pollution Index(BPI)were chosen to indicate the water quality in mainstream of Dongjiang River and showed it remain good.However,compared with 1980s,there was quite different in the aquatic species,dominant species and quantity of aquatic animals.So the water quality in Dongjiang River had declined from the aspect of bioassessment of water quality.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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