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dc.contributor.authorMochemadkar, Sunita-
dc.contributor.authorGauns, Mangesh-
dc.contributor.authorPratihary, Anil-
dc.contributor.authorThorat, Babasaheb-
dc.contributor.authorRoy, Rajdeep-
dc.contributor.authorPai, I. K.-
dc.contributor.authorNaqvi, S. W. A.-
dc.identifier.issn0975-1033 (Online); 0379-5136 (Print)-
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 23µg chl a l-1 resulted in an uptake of 10µM nitrate, 0.6µM phosphate and 17µM silicate. Phytoplankton showed high growth rates with an average value of 1.36µg chl l-1 d-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. en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rightsCC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJMS Vol.42(3) [June 2013]en_US
dc.subjectZuari estuaryen_US
dc.subjectNutrient uptakeen_US
dc.titleResponse of phytoplankton to nutrient enrichment with high growth rates in a tropical monsoonal estuary - Zuari estuary, Indiaen_US
Appears in Collections:IJMS Vol.42(3) [June 2013]

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