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dc.contributor.authorSanthakumari, V.
dc.contributor.authorRamaiah, Neelam
dc.contributor.authorNair, V.R.
dc.date.accessioned2009-01-12T08:35:49Z
dc.date.available2009-01-12T08:35:49Z
dc.date.issued1997
dc.identifier.citationIndian Journal of Marine Sciences, Vol.26; 162-168p.
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/1969
dc.description.abstractSpecies composition, abundance, seasonal variation and distribution of Hydromedusae were carried out during October 1985 to September 1986. Thirty four species belonging to twenty two genera were recorded from this region. Blackfordia virginica and Phialidium brunescens were found from all stations at least during certain period. The present study shows a general decrease in species diversity in the interior stations which receive large quantities of sewage and industrial effluents and this signifies the sensitive nature of these species. Density of dominant species such as B. virginica, Eirene ceylonensis, P. brunescens and Eutima commensalis occurring in swarms at times constitute high standing stock. Maximum density was observed at st. 4 which is interior and closer to the industrial estates of Thana District. Abnormalities like occurrence of specimens having 3, 5 and 6 radial canals instead of its usual 4 radial canals were observed in B. virginica and E. commensalis were found to be crumbled, distorted and brownish in colour. This indicates the adaptation of these hardly species of the prevailing water quality. Station 5 was found to be very poor in density as well as in species diversity of hydromedusae. This suggestive of the fact that some environmental factor or combination of several factors inhibit the growth and activity of these animals of this area. Ostroumovia inkermanica is a new record to Arabian Sea.
dc.language.isoen
dc.publisherNISCAIR, CSIR
dc.rightsCopyright [1997]. 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.subjectzooplankton
dc.subjectcheck lists
dc.subjectseasonal variations
dc.subjectgeographical distribution
dc.subjectspecies diversity
dc.subjectsewage
dc.subjectindustrial wastes
dc.subjectdominant species
dc.subjectpopulation density
dc.subjectenvironmental factors
dc.subjectBlackfordia virginica
dc.subjectEirene ceylonensis
dc.subjectPhialidium brunescens
dc.subjectEutima commensalis
dc.subjectOstroumovia inkermanica
dc.titleEcology of hydromedusae from Bombay Harbour - Thana and Bassein Creek estuarine complex
dc.typeJournal Article


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