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For details, see Dey and Banerjee
A special kind of bamboo sieve aligned vertically on pond bed with weights attached on both sides at the bottom
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It should be noted that the mouzas are not classified in terms of extent of change but only the types of changes
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Locally termed as Dhaul
Locally termed as Lalon Pukur
Locally termed as Palon Pukur
Locally named as has-poka
In formal knowledge plane the test is called 'bio-assay' test
Locally termed as Antur Pukur
The wetlands in the eastern fringe of Kolkata, popularly known as the East Kolkata Wetlands (EKW), work as an absorber of sewage water and excess rainwater runoff from the city. The local people are utilizing this waste water in pisciculture through adoption of a number of traditionally inherited practices. Moreover, pond effluent based paddy cultivation and garbage based vegetable farming are integrated with fishery in the ways that make the production processes complementary to each other. However, since the development of Salt Lake City and the construction of Eastern Metropolitan Bypass, the connectivity of EKW with the main city has improved and pressures of urbanization are leading to the conversion of wetlands into urban settlements. This is disturbing the ecological balance, as well as making traditional economic activities less profitable. This article illustrates this crisis of existence and critically assesses the remedial attempts.
Environment and Urbanization ASIA – SAGE
Published: Sep 1, 2013
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