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dc.contributor.authorAlbin, K.J.
dc.contributor.authorJyothibabu, R.
dc.contributor.authorAlok, K.T.
dc.contributor.authorSanthikrishnan, S.
dc.contributor.authorSarath, S.
dc.contributor.authorSudheesh, V.
dc.contributor.authorSherin, C.K.
dc.contributor.authorBalachandran, K.K.
dc.contributor.authorAshaDevi, C.R.
dc.contributor.authorGupta, G.V.M.
dc.date.accessioned2022-04-01
dc.date.accessioned2022-06-20T10:44:12Z
dc.date.available2022-03-12
dc.date.available2022-06-20T10:44:12Z
dc.date.issued2022
dc.identifier.citationProgress in Oceanography, vol.203; 2022; Article no: 102779
dc.identifier.issn0079-6611
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S0079661122000404
dc.identifier.urihttps://doi.org/10.1016/J.POCEAN.2022.102779
dc.identifier.urihttps://drs.nio.org/drs/handle/2264/8859
dc.description4.080
dc.description.abstractEven though the seasonal pattern of phytoplankton biomass distribution in the seas around India is reasonably well understood, there is relatively little information on phytoplankton size classes. The current study shows how phytoplankton of different size classes respond to nutrient enrichment caused by vertical convective mixing during the Northeast Monsoon [(NEM) November-February] and coastal upwelling during the Southwest Monsoon [(SWM) June-September] in the Eastern Arabian Sea (EAS). In the Northeastern Arabian Sea (NEAS), phytoplankton biomass [Chlorophyll-a (Chl-a)] and primary production (PP) were moderate and comparable during both the NEM (Chl-a av. 21 mg m-2 and PP av. 601 mg C m-2 d-1) and the SWM (Chl-a av. 27 mg m-2 and PP av. 516 mg C m-2 d-1). The Southeastern Arabian Sea (SEAS) was oligotrophic (Chl-a av. 12 mg m-2 and PP av. 197 mg C m-2 d-1) during the NEM due to strong surface stratification, but due to coastal upwelling, it turned into a very productive system along the shelf waters during the SWM (Chl-a av. 45 mg m-2 and PP av. 1201 mg C m-2 d-1). Interestingly, the subsurface Chl-a maximum (SCM) was almost absent in the NEAS during both seasons. Similarly, SCM was absent in the entire coastal upwelling zone of the EAS during the SWM. In these areas and situations, Chl-a was found to accumulate in the nutrient-rich surface layers of the shallow euphotic zones.
dc.languageen
dc.publisherElsevier
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleDistinctive phytoplankton size responses to the nutrient enrichment of coastal upwelling and winter convection in the eastern Arabian Sea
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Kochi, Kerala, India


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