International Journal of Innovative Studies in Aquatic Biology and Fisheries
Volume-1 Issue-2, 2015, Page No: 1-8
Spatio-Temporal Variation of Nitrate in the Lower Gangetic
Delta Water
Gahul Amin1, Sufia Zaman2, Tanmoy Rudra3*
Arnesha Guha 3, Nabonita Pal2, Prosenjit Pramanick2, Abhijit Mitra4
1.Department of Physics, Netaji Subhas Open University (Kalyani Campus), Kalyani, India
2.Department of Oceanography, Techno India University, Salt Lake Campus, Kolkata, India
3.Scientific and Environmental Research Institute, 42, Station Road, Rahara, Kolkata, India
4.Department of Marine Science, Calcutta University, 35, B.C Road, Kolkata, India
Citation : Gahul Amin, Sufia Zaman, Tanmoy Rudra, Arnesha Guha, Nabonita Pal,Prosenjit Pramanick and Abhijit Mitra, Spatio-Temporal Variation of Nitrate in the Lower Gangetic
Delta Water International Journal of Innovative Studies in Aquatic Biology and Fisheries . 2015;1(2):1-8.
Abstract
Nitrate levels in three major stations of Hooghly-Matla estuarine complex have been forecasted on
the basis of three decades real time data (1984-2014). The forecast values exhibit enhanced concentrations of
nitrate after a period of three decades. The levels of nitrate will be 46.63 μgatm/l, 50.71μgatm/l and 21.68
μgatm/l at Diamond Harbour, Namkhana and Ajmalmari respectively in 2044. The situation seems to be
alarming (in context to eutrophication and adverse impact on endemic biodiversity) as the rates of increase are
high around 132.98 %, 120.09 % and 97.99 % at Diamond Harbour, Namkhana and Ajmalmari respectively.