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dc.contributor.authorNiveditha, S.K.
dc.contributor.authorHaridevi, C.K.
dc.contributor.authorHardikar, R.
dc.contributor.authorRam, A.
dc.date.accessioned2022-06-30
dc.date.accessioned2022-06-30T13:46:09Z
dc.date.available2022-05-20
dc.date.available2022-06-30T13:46:09Z
dc.date.issued2022
dc.identifier.citationMarine Pollution Bulletin, vol.180; 2022; Article no: 113719
dc.identifier.issn0025-326X
dc.identifier.otherhttps://www.sciencedirect.com/science/article/pii/S0025326X22004015
dc.identifier.urihttps://doi.org/10.1016/J.MARPOLBUL.2022.113719
dc.identifier.urihttps://drs.nio.org/drs/handle/2264/8887
dc.description5.553
dc.description.abstractPhytoplankton assemblage and chlorophyll a along the salinity gradient and oxygen zonation were studied in Ulhas Estuary. Oxic condition exist in euhaline region of the estuary that receives oxygenated coastal waters, while, poly-meso-oligohaline region is hypoxic due to the accumulation of voluminous amount of pollutants from industrial effluents, domestic/sewage and agricultural discharges. Additionally, anthropogenically generated nutrients enhanced phytoplankton biomass (chlorophyll a) and their senescence also led to hypoxia. The dominance of diatoms (>70%) was observed in the euhaline-oxic region, while a tremendous decrease in their contribution (18%) was observed in the oligohaline region. Meso to oligohaline region of the estuary is governed by cyanophytes and chlorophytes due to their affinity towards low salinity and high dissolved inorganic nutrients. Carlson's Trophic State Index (TSI) further substantiated the estuary as eutrophic. Additionally, the study could identify the adaptation of cyanophytes and chlorophytes in oxygen deficient water.
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.titlePhytoplankton assemblage and chlorophyll a along the salinity gradient in a hypoxic eutrophic tropical estuary-Ulhas Estuary, West Coast of India
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Mumbai, Maharastra, India


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