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| Content Provider | Springer Nature Link |
|---|---|
| Author | Kessarkar, Pratima Mohan Purnachandra Rao, Venigalla Shynu, Ranjan Mehra, Prakash Viegas, Blossom E. |
| Copyright Year | 2009 |
| 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. Wind-driven 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. |
| Starting Page | 30 |
| Ending Page | 44 |
| Page Count | 15 |
| File Format | |
| ISSN | 15592723 |
| Journal | Estuaries |
| Volume Number | 33 |
| Issue Number | 1 |
| e-ISSN | 15592731 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-10-16 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Suspended particulate matter Turbidity maximum Estuarine sedimentation Biogeochemical processes Clay minerals Nature Conservation Environmental Management Freshwater & Marine Ecology Earth Sciences Ecology Environment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
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