• 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.

    Metals in coastal zooplanktons - A coastal living resource hazard

    Thumbnail
    View/Open
    Coastal_Hazards_2010_199.pdf (345.3Kb)
    Date
    2010
    Author
    Paimpillil, J.S.
    Joseph, T.
    Rejomon, G.
    Gerson, V.J.
    Metadata
    Show full item record
    Abstract
    Trace metals in zooplankton and in coastal water column were monitored in the shallow coastal parts of Bay of Bengal during one winter monsoon. Among the zooplankton biota, copepods remained the most dominant one, followed by Chaetognaths, ostracods and euphausids. The trace metals were generally low in water column and in the zooplanktons, except in the vicinity of two major ports. The metal content trend in the zooplankton had a decreasing tendency as Fe>Zn>Mn>Cu>Ni>Co>Cd>Cr>Pb. The concentration factor of metals in zooplankton are present in the decreasing order of Fe, Zn, Co, Cd, Ni, Cu, Mn & Pb. The iron content in zooplankton (50962 ppm) and in water column (2.81 ppb) in major harbour areas was nearly twice of the other coastal stations. The high concentration of lead (20 ppm) in the coastal zooplankton indicated the impacts of the high influxes of lead. The high manganese concentration in zooplankton (552 ppm) is hinting towards land drainage and of domestic sewage. The higher copper content in zooplankton (78 ppm) and zinc (7066 ppm) point out the close relationship between the pollution of the harbour and industrial effluents and domestic sewage. The observed enrichment of trace metals in water and in zooplankton at the open ocean stations are linked to bioaccumulation. The biological concentration factor and metal contents in zooplankton is appreciably varied for all the elements except for iron and zinc. The above findings clearly indicates the importance of bioavailability of metals in seawater and to the relative enrichment of heavy metal accumulation by planktonic species.
    URI
    http://drs.nio.org/drs/handle/2264/3801
    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