| Use of Biotic Community Structure as a Measure of Ecological Degradation |
| |
| 作者姓名： | SANJIB Kumar Das DIBYENDU Biswas SUDIPTO Roy |
| |
| 作者单位： | [1]Environmental Science Department, Netaji Subhas Open University, Kolkata-700020, West Bengal, India [2]Department of Engineering Physics, Calcutta Institute of Engineering and Management, Kolkata-700040, West Bengal, India |
| |
| 摘 要： | The benthic macroinvertebrate communities of two lotic aquatic habitats,namely,the Churni River(C-R)and the Jalangi River(J-R)were compared in this study.One lotic aquatic system(C-R)was polluted by organic pollutants due to discharge of unprocessed sewage water,while the other(J-R)was not affected by such pollution.Evaluations of various physico-chemical properties of water,sediment and different macroinvertebrate communities of the two tropical lotic systems were done in a period from January,2002 to December,2003.A long term temporal change in the macroinvertebrate communities was recorded due to increase in sediment rH value.Sediment redox potential affected by the anthropogenic activities was found to be an important factor for alteration of macroinvertebrate communities in these aquatic ecosystems.A positive correlation has been established between rH and Margalef index in this study.Potassium and the total count of coliform bacteria in water showed significantly higher values for the polluted Churni River than those for the Jalangi River.Fig 3,Tab 4,Ref 34
|
| 关 键 词： | 生物群落结构 生态退化 测量系统 大型无脊椎动物 氧化还原电位 有机污染 |
| 收稿时间： | 2007-04-03 |
| 修稿时间： | 2007-07-20 |
Use of Biotic Community Structure as a Measure of Ecological Degradation |
| |
| SANJIB Kumar Das DIBYENDU Biswas SUDIPTO Roy.Use of Biotic Community Structure as a Measure of Ecological Degradation[J].Chinese Journal of Applied and Environmental Biology,2007,13(5):662-667. |
| |
| Authors: | SANJIB Kumar Das DIBYENDU Biswas SUDIPTO Roy |
| |
| Institution: | 1. Environmental Science Department, Netaji Subhas Open University, Kolkata-700020, West Bengal, India
2. Department of Engineering Physics, Calcutta Institute of Engineering and Management,Kolkata-700040, West Bengal, India |
| |
| Abstract: | The benthic macroinvertebrate communities of two lotic aquatic habitats,namely,the Churni River(C-R)and the Jalangi River(J-R)were compared in this study.One lotic aquatic system(C-R)was polluted by organic pollutants due to discharge of unprocessed sewage water,while the other(J-R)was not affected by such pollution.Evaluations of various physico-chemical properties of water,sediment and different macroinvertebrate communities of the two tropical lotic systems were done in a period from January,2002 to December,2003.A long term temporal change in the macroinvertebrate communities was recorded due to increase in sediment rH value.Sediment redox potential affected by the anthropogenic activities was found to be an important factor for alteration of macroinvertebrate communities in these aquatic ecosystems.A positive correlation has been established between rH and Margalef index in this study.Potassium and the total count of coliform bacteria in water showed significantly higher values for the polluted Churni River than those for the Jalangi River.Fig 3,Tab 4,Ref 34 |
| |
| Keywords: | macroinvertebrate redox potential Margalef index Shannon-Weiner diversity index lotic organic pollution |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
