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dc.contributor.authorJayalakshmy, K.V.
dc.date.accessioned2009-05-12T09:59:24Z
dc.date.available2009-05-12T09:59:24Z
dc.date.issued1991
dc.identifier.citationIndian Journal of Fisheries, Vol.38; 139-150p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/3164
dc.description.abstractBased 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
dc.language.isoen
dc.publisherICAR, New Delhi
dc.rightsCopyright [1991]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectmarine crustaceans
dc.subjectzooplankton
dc.subjectgeographical distribution
dc.subjectvertical distribution
dc.subjectcheck lists
dc.subjectwater column
dc.subjectenvironmental factors
dc.subjectspecies diversity
dc.subjectPleuromamma
dc.titleBathymetric distribution of Pleuromamma (Copepoda, Calanoida) species in the Indian Ocean
dc.typeJournal Article


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