9788181710017 - Studies on Intertidal Macrozoobenthos of Hugli River in and Around Calcutta in Relation to Water and Soil Conditions von Sobana Paul; N.C Nandi (1 Ergebnisse)

Paperback. Zustand: As New. Contents: Preface. 1. Introduction. 2. Materials and methods. 3. Results and discussion. Conclusion. Summary. References. Appendices. From the preface: "The study of river ecology has gained immense importance because of the multiple use of river waters. Almost all major rivers of India have become highly polluted. Even the Ganga, with high self-purification capacity, is among India's most polluted rivers. River Hugli which originates from Ganga experiences considerable human activities of various kinds along its course including domestic, commercial, agricultural and industrial activities. As a result, different types of waste materials enter the river continuously altering its water quality and are bound to affect the living resources, i.e., animals and plants occurring in the river water. The water quality of this river in particular and the habitat in general have become somewhat inhospitable to shelter the organic diversity. The rich variety of flora and fauna, which has so long sustained, have now become threatened. In view of the above facts, a comprehensive plan had been in mid 1980's undertaken by the Central Ganga Authority to restore the purity of the river water which will obviously help in the preservation of its natural living resources. A nationwide effort to restore and maintain the water quality got underway with the passing of Water Prevention and Control of Pollution Act in 1974. "In an effort to understand and evaluate the hydrobiological status of Hugli estuary in and around Calcutta metropolis, a comprehensive biomonitoring 136 pp.