Variations in concentrations and fluxes of dimethylsulfide (DMS) from the Indian estuaries

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dc.contributor.author Viswanadham, R.
dc.contributor.author Bharathi, M.D.
dc.contributor.author Sarma, V.V.S.S.
dc.date.accessioned 2016-05-12T11:51:41Z
dc.date.available 2016-05-12T11:51:41Z
dc.date.issued 2016
dc.identifier.citation Estuaries and Coasts, vol.39(3); 2016; 695-706
dc.identifier.uri http://drs.nio.org/drs/handle/2264/4960
dc.description.abstract In order to examine the variations in concentrations of dimethylsulfide (DMS) and its fluxes to the atmosphere, 25 major and medium estuaries from Indian subcontinent were sampled during wet and dry periods. River discharge brought substantial amount of nutrients and suspended particulate matter (SPM) to the Indian estuaries; however, the concentration of phytoplankton biomass was severely limited by latter due to shallowing of photic depth. Bacillariophyceae was the dominant phytoplankton group in the Indian estuaries followed by green algae, Cyanophyceae, and Dinophyceae. Relatively higher concentrations of DMS were observed in the estuaries located along the east (3.6 ± 5.7 nM) than the west coast of India (0.8 ± 0.3 nM) during wet period whereas no significant differences were observed during dry period. The concentrations of DMS were significantly lower during wet than dry period and it was consistent with the phytoplankton biomass. The slope of the relation between DMS and phytoplankton biomass displayed a significant spatial variation due to contribution of different groups of phytoplankton in the Indian estuaries. The concentrations of DMS in the Indian estuaries were higher than other estuaries in the world except some Chinese estuaries. The annual mean flux (1.95 ± 2.5 Micromol m<sup>-2</sup> day<sup>-1</sup>) from the Indian estuaries is lower than that of other estuaries in the world, except Pearl River estuary due to inhibition of phytoplankton growth by suspended load and low flushing rates
dc.language.iso en
dc.publisher Coastal and Estuarine Research Federation
dc.rights Copyright [2016]. 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 OCEANOGRAPHY AND LIMNOLOGY
dc.subject CHEMISTRY AND BIOGEOCHEMISTRY
dc.subject CHEMISTRY AND BIOGEOCHEMISTRY
dc.subject AQUATIC COMMUNITIES
dc.subject OCEANOGRAPHY AND LIMNOLOGY
dc.title Variations in concentrations and fluxes of dimethylsulfide (DMS) from the Indian estuaries
dc.type Journal Article


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