Macrobenthic community structure features and bio-assessment of water quality in Dongjiang River
LI Liang, YANG Yang*, QIAO Yongmin, TAO Ran
1. Research Center of Hydrobiology, Jinan University, Guangzhou 510632, China; 2. Ministry of Education Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Jinan University, Guangzhou 510632, China
Macrozoobenthos in the Dongjiang River were investigated in April to June, 2012. Altogether 78 species belonging to 7 classes, 48 families,72 genera were recorded, of which were 12 species of oligochaetes, 17 species of molluscs, 47 species of aquatic insects, and 3 of other species. The dominant group in the upstream and source area were aquatic insects, comprising 70.2% and 58.3% of the total in density. While in the downstream oligochaete was the main specie, accounting for 62.0%. The applicability of Shannon diversity, Biotic Index (BI) and Family Biotic Index (FBI) was discussed, and the water quality in mainstream of Dongjiang River remained good．The water quality in main streams was overall good, and that in the source area was better than in other stream segments. The change in macroinvertebrate community structure and the decline in the number of benthos species indicated a deterioration trend in the regional Dongjiang River from the aspect of bio-assessment of water quality.
李良, 杨扬*, 乔永民, 陶然. 东江干流及其源头支流大型底栖动物群落结构特征与环境指示评价[J]. , 2013, 32(3): 313-317.
LI Liang, YANG Yang*, QIAO Yongmin, TAO Ran. Macrobenthic community structure features and bio-assessment of water quality in Dongjiang River. , 2013, 32(3): 313-317.
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