• 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.

    Bathymetric distribution of Pleuromamma (Copepoda, Calanoida) species in the Indian Ocean

    Thumbnail
    View/Open
    Indian_J_Fish_38_139.pdf (494.9Kb)
    Date
    1991
    Author
    Jayalakshmy, K.V.
    Metadata
    Show full item record
    Abstract
    Based on the analysis of 204 zooplankton samples from the stratified depths in the Indian Ocean collected during the International Indian Ocean Expedition (IIOE), the distribution of the genus Pleuromamma indica, P. gracilis, P. piseki, P. abdominalis, P. borealis, P. xipias and P. quadrungulata, in the order of their abundance, and 1 variety of the genus P. abdominalis abyssalis were observed. Vertical distribution of species of Pleuromamma showed that they were inversely correlated with depth. Among the Pleuromamma species, P. indica could survive in an environment of low dissolved oxygen and lower depths of water column, whereas P. xipias and P. abdominalis could survive in an environment of high dissolved oxygen and at almost all depths of water column. Multiple regression analysis of the data suggested that light intensity, further depth stratification, seasonal variations, water currents and the interaction effects of temperature with dissolved oxygen and nutrients could provide a more pronounced prediction of the total abundance of the Pleuromamma species. Diversity function H (s), in relation to latitude was a bell-shaped normal curve. H (s) was linearly related to evenness index, e, and was perfectly sloping up line. These relations were highly pronounced at lower depths of water column and in the highly productive regions
    URI
    http://drs.nio.org/drs/handle/2264/3164
    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