Record Details

Distribution of dissolved carbohydrates and uronic acids in a tropical estuary, India

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Distribution of dissolved carbohydrates and uronic acids in a tropical estuary, India
 
Creator Khodse, V.B.
Bhosle, N.B.
Matondkar, S.G.P.
 
Subject dissolved carbohydrates
dissolved uronic acid
dissolved monosaccharide
dissolved organic matter
 
Description Carbohydrates including uronic acids are among the active components of dissolved organic carbon, and play an important role in biogeochemical cycling of organic carbon in marine environments. In order to understand their distribution, concentrations of total dissolved carbohydrate (TCHO), dissolved polysaccharide (PCHO), dissolved monosaccharide (MCHO), and dissolved uronic acid (URA) were measured in the Mandovi estuary, west coast of India during the monsoon and premonsoon seasons. The estuary experienced nearly fresh water condition during the monsoon season and marine condition during the pre-monsoon season. Concentrations of TCHO, MCHO and URA ranged from 17.7 to 67.3 mu M C, 4.1 to 15.5 mu M C and 2.3 to 10.8 mu M C, and their contribution to dissolved organic carbon (DOC) varied from approx. 11 to 60%, 2.5 to 9.7%, and 1.8 to 5.3%, respectively. PCHO accounted for approx. 52 to 92% of the TCHO. Generally, concentrations and yields of TCHO species were greater during the monsoon season. Phytoplankton abundance and bacterial cell numbers influenced the distribution of TCHO in the pre-monsoon season but not during the monsoon season. Transport of TCHO rich (11 to 60%) dissolved organic matter from the Mandovi estuary to the coastal waters during the monsoon season may affect ecosystem function by fueling biological activity of heterotrophic micro-organisms
 
Date 2010-08-10T09:12:13Z
2010-08-10T09:12:13Z
2010
 
Type Journal Article
 
Identifier Journal of Earth System Science, vol.119(4); 519-530
http://drs.nio.org/drs/handle/2264/3698
 
Language en
 
Rights © Indian Academy of Sciences. All efforts have been made to respect the copyright to the best of our
knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository
 
Publisher Indian Academy of Sciences