Show simple item record

dc.contributor.authorPurushan, K.S.
dc.contributor.authorGopalan, U.K.
dc.contributor.authorRao, T.S.S.
dc.date.accessioned1995-05-08T09:57:15Z
dc.date.accessioned2017-09-29T13:48:43Z
dc.date.available1995-05-08T09:57:15Z
dc.date.available2017-09-29T13:48:43Z
dc.date.issued1981
dc.identifier.citationMahasagar, vol.14; 1981; 277-288
dc.identifier.issn0542-0938
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/6711
dc.description.abstractSeasonal variation in the standing crop of intertidal oyster Crassostrea madrasensis at Ramanthuruth and Vallarpadom in the Cochin backwater for the period July 1974 to December 1975 showed that the maximum yield (whole weight) was about 20 kg/m2 in July during 1974 and 10-18 kg/m2 in March-April during 1975 at both stations. The average biomass at Ramanthuruth was significantly higher than that at Vallarpadom. In general, oysters in closeby deeper waters were significantly larger in size than the intertidal ones, but as regards percentage meat weight the latter out-weighed the former. Among environmental variables, salinity seemed to be the foremost factor in influencing the production of oysters. A large majority (90-98%) of the intertidal oysters perished during the monsoon and early postmonsoon while the subtidal population was seen to be relatively more stable. The increased rates of siltation, turbidity and pollution arising out of man made changes in the backwater seem to exert a negative influence on the existence of edible oysters and at the same time pose a threat to their consumers
dc.languageen
dc.publisherIndian Association for Limnology and Oceanography
dc.relation.ispartofMahasagar
dc.relation.isreferencedbyNON-SCI
dc.subjectAquaculture
dc.subject.otherbiomass
dc.subject.otherturbidity
dc.subject.othersalinity
dc.subject.otherenvironmental factors
dc.subject.otheryield
dc.subject.otherecological zonation
dc.subject.otherseasonal variations
dc.subject.otherecology
dc.subject.otheroyster culture
dc.subject.otherbrackishwater molluscs
dc.subject.otherCrassostrea madrasensis
dc.subject.otherISW, India, Kerala
dc.titleEcological Studies on the Seasonal Production of the Edible Oyster, Crassostrea Madrasensis (Preston) in Cochin Backwater, Kerala
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Kochi, Kerala, India


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record