• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

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

    Thumbnail
    View/Open
    J_Earth_Syst_Sci_119_519.pdf (357.7Kb)
    Date
    2010
    Author
    Khodse, V.B.
    Bhosle, N.B.
    Matondkar, S.G.P.
    Metadata
    Show full item record
    Abstract
    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
    URI
    http://drs.nio.org/drs/handle/2264/3698
    Collections
    • Scholarly literature [8765]

    Related items

    Showing items related by title, author, creator and subject.

    • Air-sea gas transfer in a shallow, flowing and coastal environment estimated by dissolved inorganic carbon and dissolved oxygen analyses 

      Abe, O.; Watanabe, A.; Sarma, V.V.S.S.; Matsu, Y.; Yamano, H.; Yoshida, N.; Saino, T. (The Oceanographic Society of Japan, 2010)
      We estimated gas exchange rates in Kabira Reef at Ishigaki Island, southwest Japan, using a mass balance calculation with dual ‘biological’ tracers: dissolved inorganic carbon (DIC) and dissolved oxygen (DO). The nighttime ...
    • Influence of environmental forcings on the seasonality of dissolved oxygen and nutrients in the Bay of Bengal 

      Sardessai, S.; Ramaiah, N.; PrasannaKumar, S.; DeSouza, S.N. (Yale University, 2007)
      Studies on seasonal variability of oxygen and nutrients during three seasons namely SW monsoon, fall intermonsoon and spring intermonsoon indicate influence of physical forcings on the distribution of these hydrochemical ...
    • Bacterial utilization of size-fractionated dissolved organic matter 

      Khodse, V.B.; Bhosle, N.B. (Inter-Research, 2011)
      Dissolved organic matter (DOM) is an important source of organic carbon for sustaining the growth of heterotrophic bacteria. The bacterial utilization of high-molecular-weight (HMW; greater than 30 kDa to 0.22 mu m) and ...

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV