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dc.contributor.authorMochemadkar, S.
dc.contributor.authorGauns, M.
dc.contributor.authorPratihary, A.K.
dc.contributor.authorThorat, B.R.
dc.contributor.authorRoy, R.
dc.contributor.authorPai, I.K.
dc.contributor.authorNaqvi, S.W.A.
dc.date.accessioned2013-08-07T12:14:41Z
dc.date.available2013-08-07T12:14:41Z
dc.date.issued2013
dc.identifier.citationIndian Journal of Geo-Marine Sciences, vol.42(3); 2013; 314-325
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4334
dc.description.abstractPresent study is about the impact of macronutrient enrichment on phytoplankton biomass and community structure in a tropical monsoonal estuary. In situ experiments carried out during the pre-monsoon period (February-March 2006), showed that the response time of phytoplankton to nutrient enhancement was 24-32 h. Phytoplankton biomass increased sizably, indicating nitrate and silicate limitation for phytoplankton growth. An increase in 23 Mew g chl a l sup (-1) resulted in an uptake of 10 Mew M nitrate, 0.6 Mew M phosphate and 17 Mew M silicate. Phytoplankton showed high growth rates with an average value of 1.36 Mew g chl l sup (-1) d sup (-1).This phytoplankton community was largely dominated by diatoms (>96%), particularly chain forming species. Relative preference index (RPI) value for nitrate was >1, suggesting that, irrespective of the ambient ammonium concentration, estuarine autotrophs preferred nitrate. Few species like Skeletonema costatum and Thalassionema nitzschioides exhibited the ability to withstand hypoxic condition
dc.language.isoen
dc.publisherCSIR-NISCAIR
dc.rights© IJMS/NISCAIR 2013. CC Attribution 3.0 License (CC BY 3.0)
dc.subjectplant nutrition
dc.subjecthypoxia
dc.subjectnutrients (mineral)
dc.subjectphytoplankton
dc.subjectbiomass
dc.subjectfluorimeters
dc.titleResponse of phytoplankton to nutrient enrichment with high growth rates in a tropical monsoonal estuary - Zuari estuary, India
dc.typeJournal Article


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