Browsing Scholarly literature by Author "Naik, R."
Now showing items 1-11 of 11
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Anaerobic carbon mineralisation through sulphate reduction in the inner shelf sediments of eastern Arabian sea
Naik, R.; Naqvi, S.W.A.; Araujo, J. (Springer, 2017)Monsoon-induced coastal upwelling, land run-off, benthic and atmospheric inputs make the western Indian shelf waters biologically productive that is expected to lead to high rates of mineralisation of organic matter (OM) ... -
Benthic fluxes of methane along the salinity gradient of a tropical monsoonal estuary: Implications for CH4 supersaturation and emission
Araujo, J.; Pratihary, A.K.; Naik, R.; Naik, H.; Naqvi, S.W.A. (Elsevier, 2018)Observations in the Mandovi estuary, a typical tropical monsoonal estuary located on the west coast of India, revealed that waters were perennially supersaturated with CH4, indicating that the estuary could be a significant ... -
Benthic mineralization and nutrient exchange over the inner continental shelf of western India.
Pratihary, A.K.; Naqvi, S.W.A.; Shirodkar, G.; Kurian, S.; Naik, H.; Naik, R.; Manjunatha, B.R. (European Geosciences Union, 2014)The western Indian continental shelf is one of the most productive coastal systems of the world ocean. This system experiences extreme changes in its oxygen regime, being normoxic from November to May and suboxic ... -
Biogeochemistry of methane in a tropical monsoonal estuarine system along the west coast of India
Araujo, J.; Naqvi, S.W.A.; Naik, H.; Naik, R. (Elsevier, 2018)Estuaries are known to be important sources of methane (CH4) to the atmosphere. However, a lack of adequate field studies in understanding the sources/sinks of CH4 in estuaries hampers the global atmospheric budgeting. ... -
Effects of bottom water oxygen concentrations on mercury distribution and speciation in sediments below the oxygen minimum zone of the Arabian Sea
Chakraborty, P.; Mason, R.P.; Jayachandran, S.; Vudamala, K.; Armoury, K.; Sarkar, Arindam; Chakraborty, S.; Bardhan, P.; Naik, R. (Elsevier, 2016)This study investigated the influences of varying dissolved oxygen (DO) levels in overlying bottom water, sediment grain size, total sedimentary organic carbon (C<sub>org</sub>), and total sedimentary sulfide concentrations ... -
From science to society: Time for action
Naik, R. (National Inst. of Oceanography (CSIR); India, 2009) -
Mercury profiles in sediment from the marginal high of Arabian Sea: An indicator of increasing anthropogenic Hg input
Chakraborty, P.; Vudamala, K.; Chennuri, K.; Armoury, K.; Linsy, P.; Ramteke, D.; Sebastian, T.; Jayachandran, S.; Naik, C.; Naik, R.; Nath, B.N. (Springer, 2016)Total Hg distributions and its speciation were determined in two sediment cores collected from the western continental marginal high of India. Total Hg content in the sediment was found to gradually increase (by approximately ... -
Organic matter - A key factor in controlling mercury distribution in estuarine sediment
Chakraborty, P.; Sarkar, Arindam; Vudamala, K.; Naik, R.; Nath, B.N. (Elsevier, 2015)Organic matter (OM) was found to play an important role in controlling mercury (Hg) distribution and speciation in estuarine sediment of the Vembanad Lake. The sedimentary organic carbon (OC) from the northern part of the ... -
Phytoplankton biomass and primary production in Delagoa Bight Mozambique: Application of remote sensing
Kyewalyanga, M.S.; Naik, R.; Hegde, S.; Raman, M.; Barlow, R.; Roberts, M. (Elsevier, 2007)A non-linear model that uses satellite-derived chlorophyll to estimate water-column primary production was developed and tested using data from the Delagoa Bight, where the model results compared well with local estimates. ... -
Role of Diatoms in marine biofouling
Anil, A.C.; Patil, J.S.; Mitbavkar, S.; DeCosta, P.M.; DeSilva, S.; Hegde, S.; Naik, R. (CSMCRI, India, 2006)Diatoms are one of the early colonisers on surfaces submerged in the photic zone of the environment. Their colonisation on man made structures, termed biofouling, has enormous implications in the marine industry. The ... -
Sedimentary sulphate reduction and organic matter mineralization across salinity gradient of the Mandovi Estuary, West coast of India
Naik, R.; Araujo, J.; Pratihary, A.K.; Kurian, S.; Naqvi, S.W.A. (Elsevier, 2019)The Mandovi Estuary, located along the tropical west coast of India, transforms from being a freshwater-dominated body during the monsoon season to a tide-dominated system during post-monsoon season, with a salinity gradient ...