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dc.contributor.authorKamaleson, A.S.
dc.contributor.authorGonsalves, M.J.B.D.
dc.contributor.authorNazareth, D.R.
dc.date.accessioned2019-12-31
dc.date.accessioned2020-02-04T09:38:23Z
dc.date.available2019-07-16
dc.date.available2020-02-04T09:38:23Z
dc.date.issued2019
dc.identifier.citationEnvironmental Monitoring and Assessment, vol.191(8); 2019; Article no: 496
dc.identifier.urihttps://doi.org/10.1007/s10661-019-7616-8
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/8249
dc.description.abstractThe bacterial oxidation of sulfur and methane is central to the biogeochemical processes in sediments such as the tropical mangrove sediments. However, there is a lacuna of information on the seasonal interactions including the influence of monsoons which is a major driver of seasonal change, on sulfur-oxidizing bacteria (SOB) and methane-oxidizing bacteria (MOB), their activity and the environmental variables. To understand these interactions, the analysis was carried out on sediment samples that were sampled monthly for a year from Chorao mangrove, Goa, southwest coast of India. SOB (3.8�105CFU g?1) and MOB (0.90�105CFU g?1) had maximum average abundance in the surface sediments in the post-monsoon and monsoon season, respectively. The mean sulfur-oxidation activity (SOA) of 2.63�mM�day?1 and methane-oxidation activity (MOA) of 110.94�mM�day?1 were highest in surface sediments during the post-monsoon season. Generally, the activity of SOB and MOB in surface sediments of post-monsoon was 2.2 times(�) and 2.8� respectively higher than that in the monsoon season. Among the environmental parameters analyzed, protein and sulfide concentrations significantly (p < 0.001) influenced SOA and MOA, respectively. There was a significant difference in SOA (p < 0.003) and MOA (p < 0.036) in surface sediments between the monsoon and the post-monsoon season. During the monsoon season, when the system is a sink of terrestrial/anthropogenic material, the interrelationship of SOB with MOA (r = 0.617, p < 0.001) and SOB with SOA (r = 0.489, p < 0.05) aids in maintaining the homeostasis of the system.
dc.languageen
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.titleInteractions of sulfur and methane-oxidizing bacteria in tropical estuarine sediments
dc.typeJournal Article
dc.affiliation.authorCSIR-National Institute of Oceanography, Dona Paula, Goa, India


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