• 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.

    Effects of hydrography on the distribution of bacteria and virus in Cochin Estuary, India

    Thumbnail
    View/Open
    Ecol_Res_30_85a.pdf (800.7Kb)
    Date
    2015
    Author
    Parvathi, A.
    Jasna, V.
    Jina, S.
    Jayalakshmy, K.V.
    Lallu, K.R.
    Madhu, N.V.
    Muraleedharan, K.R.
    NaveenKumar, K.R.
    Balachandran, K.K.
    Metadata
    Show full item record
    Abstract
    The viral dynamics have rarely been investigated in estuarine environments of India. The present study brings out a first hand information on the distribution of virus and bacteria in an eutrophic estuary (Cochin, India). Thirteen stations were selected for monthly monitoring of bacterial abundance (BA), total viable bacterial count (TVC), viral abundance (VA), chlorophyll a (Chl a) and other water quality parameters (temperature, salinity, pH, dissolved oxygen and inorganic nutrients such as NO<sub>3</sub>–N, NH<sub>4</sub>–N, PO<sub>4</sub>–P and SiO<sub>4</sub>–Si) for 1 year. There was significant variations in the VA [0.59–4.48 × 10<sup>7</sup>viral like particles (VLPs) mL<sup>-1</sup>] and BA (0.49–8.12 × 10<sup>6</sup> cells mL<sup>-1</sup>) in the estuary. The variation in the viral to bacterial ratio (3–22) indicated marked seasonality. Statistical analysis showed bacteria as a major factor controlling the distribution of viruses (60 % variability) in Cochin estuary (CE). The viruses also showed positive correlations with Chl a, pH and salinity. The distribution of virus followed a distinct pattern of three different zones in the estuary controlled by salinity in zone I, Chl a in zone II and salinity, Chl a in zone III. The zonal distribution suggests that the factors that control the viral-host systems vary in different areas due to the complex hydrography of the estuary and environmental changes are very sensitive to the viral population in CE
    URI
    http://drs.nio.org/drs/handle/2264/4696
    Collections
    • Scholarly literature [9127]

    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