dc.contributor.author | Shetye, S.S. | |
dc.contributor.author | Kurian, S. | |
dc.contributor.author | Naik, H. | |
dc.contributor.author | Gauns, M. | |
dc.contributor.author | Chndrasekhararao, A.V. | |
dc.contributor.author | Kumar, Ashwini | |
dc.contributor.author | Naik, B. | |
dc.date.accessioned | 2019/04/29 | |
dc.date.accessioned | 2019-04-30T12:48:27Z | |
dc.date.available | 2019/01/04 | |
dc.date.available | 2019-04-30T12:48:27Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | Marine Pollution Bulletin, vol.141; 2019; 550-560 | |
dc.identifier.issn | 0025-326X | |
dc.identifier.uri | https://doi.org/10.1016/J.MARPOLBUL.2019.02.036 | |
dc.identifier.uri | http://drs.nio.org/drs/handle/2264/8150 | |
dc.description.abstract | The relative importance of organic nitrogen (ON) and inorganic nitrogen (IN) as nitrogen sources for the phytoplankton communities were studied through a seasonal time series of nitrogen species in the eastern Arabian Sea. Seasonal data on nitrogen species showed that ON dominates the system throughout the year and account for >90% of the total nitrogen (TN) during north east monsoon (NEM). The average ON concentration in the study region was 11.5--M during NEM as compared to 7.2--M during south west monsoon (SWM). The contribution of picoplankton to the total phytoplankton pool (fpico) increased from 19% during SWM to 36% in NEM. Along with cyanobacteria, the diatoms Thalassionema nitzchoides and Thalassiosira sp. and among the dinoflagellates Pronoctiluca sp. were found to proliferate in ON rich waters. We suggest atmospheric deposition, riverine-input, resuspension of bottom sediment and ground water intrusion as the possible sources of ON in the study region. | |
dc.language | en | |
dc.publisher | Elsevier | |
dc.relation.isreferencedby | SCI | |
dc.title | Variability of organic nitrogen and its role in regulating phytoplankton in the eastern Arabian Sea | |
dc.type | Journal Article | |
dc.affiliation.author | CSIR-National Institute of Oceanography, Dona Paula, Goa, India | |