dc.contributor.author | Mochemadkar, S. | |
dc.contributor.author | Gauns, M. | |
dc.contributor.author | Pratihary, A.K. | |
dc.contributor.author | Thorat, B.R. | |
dc.contributor.author | Roy, R. | |
dc.contributor.author | Pai, I.K. | |
dc.contributor.author | Naqvi, S.W.A. | |
dc.date.accessioned | 2013-08-07T12:14:41Z | |
dc.date.available | 2013-08-07T12:14:41Z | |
dc.date.issued | 2013 | |
dc.identifier.citation | Indian Journal of Geo-Marine Sciences, vol.42(3); 2013; 314-325 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/4334 | |
dc.description.abstract | Present 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.iso | en | |
dc.publisher | CSIR-NISCAIR | |
dc.rights | © IJMS/NISCAIR 2013. CC Attribution 3.0 License (CC BY 3.0) | |
dc.subject | plant nutrition | |
dc.subject | hypoxia | |
dc.subject | nutrients (mineral) | |
dc.subject | phytoplankton | |
dc.subject | biomass | |
dc.subject | fluorimeters | |
dc.title | Response of phytoplankton to nutrient enrichment with high growth rates in a tropical monsoonal estuary - Zuari estuary, India | |
dc.type | Journal Article | |