Dissolved inorganic nutrients, organic matter and stable nitrogen isotopes as indicators of human impact in two contrasting estuaries in West Bengal, India, during winter monsoon
Peter Fischer
Daniela Unger
Anup Palit
Marc H. Einsporn
Rubén J. Lara
Abstract
The present study consists of the analyses of dissolved inorganic nutrients (NH4 +, NO3 -, NO2 -, PO4 3-, Si(OH)4), dissolved organic nitrogen (DON), particulate nitrogen, particulate organic carbon, amino acids and δ15N of particulate nitrogen and NO3 - from Hooghly and Matla estuary. Hooghly estuary was sampled at 2 stations, at Kolkata and ca. 60 km downstream. Mangrove dominated Matla estuary was investigated along a N-S transect. Dissolved inorganic nitrogen, PO4 3- and DON concentrations were low, especially for the Hooghly site at Kolkata. Human influence, however, was revealed by the more labile nature and elevated concentrations of amino acids in Kolkata. Release of nutrients from particulate matter during estuarine transport resulted in higher NO3 - and PO4 3- concentrations downstream Kolkata. In Matla estuary no human influence was detected and nitrogen fixation was observed.
Cite this activity
Fischer P., Unger D., Palit A., Einsporn M.H. and Lara R.J. (2016) Dissolved inorganic nutrients, organic matter and stable nitrogen isotopes as indicators of human impact in two contrasting estuaries in West Bengal, India, during winter monsoon. Indian Journal of Marine Sciences/Indian journal of marine sciences 45(1): 167-28.
@article{Fischer2016,
Title = {Dissolved inorganic nutrients, organic matter and stable nitrogen isotopes as indicators of human impact in two contrasting estuaries in West Bengal, India, during winter monsoon},
Author = {Fischer, Peter and Unger, Daniela and Palit, Anup and Einsporn, Marc H. and Lara, Rubén J.},
Editor = {},
Journal = {Indian Journal of Marine Sciences/Indian journal of marine sciences},
Year = {2016},
Pages = {167-28},
Volume = {45},
Abstract = {The present study consists of the analyses of dissolved inorganic nutrients (NH4 +, NO3 -, NO2 -, PO4 3-, Si(OH)4), dissolved organic nitrogen (DON), particulate nitrogen, particulate organic carbon, amino acids and δ15N of particulate nitrogen and NO3 - from Hooghly and Matla estuary. Hooghly estuary was sampled at 2 stations, at Kolkata and ca. 60 km downstream. Mangrove dominated Matla estuary was investigated along a N-S transect. Dissolved inorganic nitrogen, PO4 3- and DON concentrations were low, especially for the Hooghly site at Kolkata. Human influence, however, was revealed by the more labile nature and elevated concentrations of amino acids in Kolkata. Release of nutrients from particulate matter during estuarine transport resulted in higher NO3 - and PO4 3- concentrations downstream Kolkata. In Matla estuary no human influence was detected and nitrogen fixation was observed.},
}
TY - JOUR
AU - Fischer, Peter
AU - Unger, Daniela
AU - Palit, Anup
AU - Einsporn, Marc H.
AU - Lara, Rubén J.
TI - Dissolved inorganic nutrients, organic matter and stable nitrogen isotopes as indicators of human impact in two contrasting estuaries in West Bengal, India, during winter monsoon
T2 - Indian Journal of Marine Sciences/Indian journal of marine sciences
PY - 2016
SP - 167-28
VL - 45
AB - The present study consists of the analyses of dissolved inorganic nutrients (NH4 +, NO3 -, NO2 -, PO4 3-, Si(OH)4), dissolved organic nitrogen (DON), particulate nitrogen, particulate organic carbon, amino acids and δ15N of particulate nitrogen and NO3 - from Hooghly and Matla estuary. Hooghly estuary was sampled at 2 stations, at Kolkata and ca. 60 km downstream. Mangrove dominated Matla estuary was investigated along a N-S transect. Dissolved inorganic nitrogen, PO4 3- and DON concentrations were low, especially for the Hooghly site at Kolkata. Human influence, however, was revealed by the more labile nature and elevated concentrations of amino acids in Kolkata. Release of nutrients from particulate matter during estuarine transport resulted in higher NO3 - and PO4 3- concentrations downstream Kolkata. In Matla estuary no human influence was detected and nitrogen fixation was observed.
ER -
Details
Date01.01.2016
JournalIndian Journal of Marine Sciences/Indian journal of marine sciences