The nature and distribution of particulate matter in the Mandovi Estuary, central west coast of India

Show simple item record Kessarkar, P.M. Rao, V.P. Shynu, R. Mehra, P. Viegas, B.E. 2010-01-27T12:30:57Z 2010-01-27T12:30:57Z 2010
dc.identifier.citation Estuaries and Coasts, vol.33(1); 30-44
dc.identifier.other no
dc.description.abstract Systematic seasonal variations of suspended particulate matter (SPM) along a 44-km transect of the Mandovi estuary reveal that the concentrations of SPM are low at river-end stations, increase generally seaward, and are highest at sea-end stations of the estuary. An estuarine turbidity maximum (ETM) occurs at sea-end stations during June-September when river discharge is high and also in February-May when river discharge is low. These are the two windiest times of year, the former associated with the southwest monsoon and the latter characterized by a persistent sea breeze. The salinity vs. SPM plot shows that high SPM is a seaward deposit and skewed landward. Suspended matter comprised of floccules, fecal pellets, and aggregates that consist of clay and biogenic particles occur everywhere in the estuary. Diatoms are the most common and are of marine type at the sea-end and freshwater dominated at river-end stations of the estuary. SPM is characterized by kaolinite- and smectite-rich clay mineral suites at the river- and sea-end stations, respectively. Smectite concentrations increase seawards with the increase in SPM content and are not influenced by salinity. Winddriven waves and currents and biogeochemical processes at the mouth of estuary likely play an important role in the formation of ETM in resuspension and transformation of SPM into floccules and aggregates and in their upkeep or removal
dc.language.iso en
dc.publisher Coastal and Estuarine Research Federation
dc.relation.requires particulate.jpg
dc.rights An edited version of this paper was published by Coastal and Estuarine Research Federation. This paper is for R & D pupose and Copyright [2009] Coastal and Estuarine Research Federation. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subject particulate matter
dc.subject Mandovi Estuary
dc.subject estuarine turbidity maximum
dc.subject biogenic particles
dc.title The nature and distribution of particulate matter in the Mandovi Estuary, central west coast of India
dc.type Journal Article

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