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Variations in some environmental characteristics including C and N stable isotopic composition of suspended organic matter in the Mandovi estuary

DRS at CSIR-National Institute of Oceanography

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Title Variations in some environmental characteristics including C and N stable isotopic composition of suspended organic matter in the Mandovi estuary
 
Creator Maya, M.V.
Soares, M.A.
Agnihotri, R.
Pratihary, A.K.
Karapurkar, S.
Naik, H.
Naqvi, S.W.A.
 
Subject Nutrients
organic matter
monsoon
Mandovi estuary
nitrogen isotopes
carbon isotopes
 
Description Chemical and isotopic (delta sup(13)C and delta sup(15)N) investigation of the Mandovi estuary along the Indian west coast affected strongly by the seasonal monsoon cycle was carried out. The Mandovi estuary is a major waterway for Goa and extensively used for transportation of iron and manganese ore. In addition, with large population centers as well as agricultural fields located on its shores, the estuary is assumed to have been influenced by human activities. Measurements of chemical and isotopic parameters made in the lower part of the estuary during the southwest (SW) monsoon and post-monsoon seasons reveal distinct changes, and it is observed that despite considerable enrichment of macronutrients during the SW monsoon, productivity of the estuary (phytoplankton biomass), as inferred from the chlorophyll-a content, is not as high as expected. This is due to occurrences of high turbidity and cloud cover that limits photosynthetic productivity. The isotopic characterization (C and N isotopes) of suspended organic matter produced/transported during the monsoon and post-monsoon seasons of year 2007 provides a baseline dataset for future isotopic studies in such type of tropical estuaries
 
Date 2011-03-09T10:55:54Z
2011-03-09T10:55:54Z
2011
 
Type Journal Article
 
Identifier Environmental Monitoring and Assessment, vol.175(1-3); 2011; 501-517
http://drs.nio.org/drs/handle/2264/3810
 
Language en
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2011] Springer.
 
Publisher Springer