• 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.

    Organic carbon dynamics in the continental shelf waters of the eastern Arabian Sea

    Thumbnail
    Date
    2022
    Author
    Shetye, S.S.
    Nandakumar, K.
    Kurian, S.
    Gauns, M.
    Shenoy, D.M.
    Naik, H.
    Vidya, P.J.
    Karapurkar, S.G.
    Metadata
    Show full item record
    Abstract
    The seasonal and spatial distribution of total organic carbon (TOC) is presented for the coastal waters of the eastern Arabian Sea, which experiences seasonal suboxia during the late southwest monsoon (SWM).This study reveals that high TOC was observed off Kochi as compared to Goa and Mangalore transects, and may be attributed to stronger upwelling along the Kerala coast.This is also supported by the excess carbon due to upwelling during the late SWM that varied from 37 M (Goa), 39 M (Mangalore), to 51 M (Kochi).Our seasonal data from 2014 to 2020 at the Goa transect indicates that high TOC is seen during late SWM to fall inter monsoon (FIM) and between the late northeast monsoon (NEM) to the early spring inter monsoon (SIM).The high TOC concentrations and C/N ratios observed during the FIM are a combination of high primary production, the buildup of remnant organic matter from the previous season (due to prevailing low oxygen conditions), accumulation of refractory organic carbon, and release from diatoms (especially Chaetoceros sp.).Inter-annual variations indicate that phytoplankton blooms resulted in higher TOC concentrations, especially during the year 2020.Based on a comparison with an Elnino-Southern Oscillation (ENSO) year (2015), we can infer that the partitioning of carbon may increase from particulate to dissolved phase in future warming scenarios.
    URI
    https://doi.org/10.1007/S10661-022-10390-4
    https://drs.nio.org/drs/handle/2264/8978
    Collections
    • Scholarly literature [9074]

    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