Sedimentation of Particulate Organic Matter in the Dona Paula Bay, West Coast of India during November to May 1995-97.
IR@NIO: CSIR-National Institute Of Oceanography, Goa
View Archive Info| Field | Value | |
| Creator |
Bhaskar, P.V.
Cardozo, E. Giriyan, A. Garg, A. Bhosle, N.B. |
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| Date |
2006-05-22T09:54:08Z
2006-05-22T09:54:08Z 2000-10 |
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| Identifier |
Estuaries, Vol. 23(2), 722-734.
http://drs.nio.org/drs/handle/2264/107 |
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| Description |
Data on hydrography, nutrients, suspended and sedimented particles were collected at weekly interval from November to May during 1995 to 1997 at a station in the coastal waters of Dona Paula Bay. Suspended and sedimented particles were analysed for total suspended matter (SPM), total sedimented particulate matter (TPM), particulate organic carbon (POC), particulate organic nitrogen (PON), chlorophyll a (Chl a) and diatom abundance. Variations in hydrography and nutrients influenced the quantity and composition of sedimented particles. The TPM, POC, PON and Chl a fluxes showed small-scale seasonal variations and were higher in the summer (February to May) than in the winter (November to January). Resuspension of carbon accounted for ~25% of the gross POC and was highest (45%) in April 1997. The mean net POC flux was 197 ± 90 mg C m -2 d-1and accounts for 4.6% of the TPM. The average C:N (w:w) ratio of the sedimented material was 13.2± 6.6. The POC/Chl a ratio was relatively higher in the sedimented material as compared to the suspended material. The particulate carbon reaching the bottom sediment was 39% of the primary production. The low organic carbon concentration (~0.1% of dry sediment) in the sediments imply that about 98% of the sedimented carbon was either consumed at the sediment-water interface or resuspended/advected before it was finally buried into the sediments.
ONR-USA. |
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212992 bytes
application/msword |
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| Language |
en
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| Publisher |
Estuarine Research Federation, USA
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| Rights |
Original article is copyrighted with publisher. This is a final draft post-refereeing as allowed by Publisher.
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| Subject |
Sedimentation
Dona Paula Bay Sediment trap Particulate organic matter |
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| Title |
Sedimentation of Particulate Organic Matter in the Dona Paula Bay, West Coast of India during November to May 1995-97.
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| Type |
Article
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