Subhas Sarobar, the largest waterbody in the city barring Rabindra Sarobar, is turning into a bog due to deposition of soap and detergents and lack of maintanence by Calcutta Improvement Trust(CIT).
The waterbody, owned by the CIT, is looked after by the West Bengal Anglers' Association(WBAA),though it's lease expired 4yrs ago.
During a recent survey, the water resources engineering department of Jadavpur University found dead fish floating in Subhas Sarobar: The abnormally low percentage of oxygen in the water is beleived to be the cause of deaths. The researcers blamed th detergents and soapsuds for the fall in oxygen.
According to the director of the water resources engineering wing, Asis Majumdar; at a depth of 3mtrs, the dissolved oxygen was 10% lessthan the minimum requirement for the survival of fish. They cannot survive if the oxygen content is below 3mg/L,he added.
"Steps should be taken immidiately for conservation of the lake. If Subhas Sarobar is not included in the National Lake Conservation Project(NLCP), like Rabindra Sarobar, its future looks bleak," added Majumdar.
Research scholars Nihar Ranjan Samal and Pankaj Roy are currently doin a chemical analysis of the water samples from the lake.
"We have sent a proposal to the central goverment for Subhas Sarobar's inclusion in the NLCP. We are yet to get a reply," said a deputy secratary of the urban development department.
The CIT is now exploring the feasibility of developing Subhas Sarobar in conjunction with private parties," revealed the Trust's Chief Engineer Dibyendu Biswas.
"We will welcom the inclusion of Subhas Sarobar in the NLCP. But we are against the privatization of the waterbody in the name of joint venture," asserted assistance of WBAA Arun Nandy.
The CIT can itself develop Subhas Sarobar into a recreation centre and introduce an entry fee for visitors, he suggested.
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