DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 2251-2270 of 9371
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Cytotoxicity and cellular uptake of ZnS:Mn nanocrystals biofunctionalized with chitosan and aminoacids
(Elsevier, 2015)Highly luminescent, manganese doped, zinc sulphide (ZnS:Mn) nanocrystals biofunctionalized with chitosan and various aminoacids such as l-citrulline, l-lysine, l-arginine, l-serine, l-histidine and glycine were synthesized ... -
Controls on the distribution and fractionation of yttrium and rare earth elements in core sediments from the Mandovi estuary, western India
(Elsevier, 2015)Mineralogy, major elements (Fe, Mn and Al), rare earths and yttrium (REY) of bulk sediments were analyzed in four gravity cores recovered along the main channel of the Mandovi estuary, western India, to determine the sources ... -
Geochemical characterization of the Krishna–Godavari and Mahanadi offshore basin (Bay of Bengal) sediments: A comparative study of provenance
(Elsevier, 2015)The Krishna–Godavari and Mahanadi rivers drain the east coast of India and deposit the sediment load into the Krishna–Godavari and Mahanadi offshore basins along the western margin of the Bay of Bengal. Here we report the ... -
Chemotaxonomic study of the demosponge Cinachyrella cavernosa (Lamarck)
(Elsevier, 2015)Sterols as acetates and phthalate esters were identified by GC–MS in demosponge Cinachyrella cavernosa. The sponge contained mainly C27, C28 and C29 Δ5 conventional sterols and minor amounts of C27 and C28 Δ0 analogues. ... -
Assessing the effect of calcein incorporation on physiological processes of benthic foraminifera
(Elsevier, 2015)Rosalina sp. was incubated in seawater spiked with calcein (5 mg/l to 20 mg/l calcein), a dye proposed as efficient marker to tag newly formed calcite, to understand its effect on benthic foraminifera. The experiment was ... -
A simple device for subsectioning aqueous sediments from the box or spade corer
(Taylor and Francis, 2015)A simple device has been developed to accomplish the requirement of precise thin subsections of the aqueous sediments at ease from the box or spade subcores. The device has been successfully tested onboard research vessel ... -
Significance of size in occurrence, distribution, morphological characteristics, abundance, and resource evaluation of polymetallic nodules
(Taylor and Francis, 2015)About 13,000 different sized nodules from 249 locations covering 75,000 km<sup>2</sup> relinquished Pioneer area in the Central Indian Basin (CIB) have been studied by assorting them in groups of 1 cm size intervals. The ... -
Interactions between trophic levels in upwelling and non-upwelling regions during summer monsoon
(Elsevier, 2015)Coastal upwelling is a regular phenomenon occurring along the southwest coast of India during summer monsoon (May–September). We hypothesize that there could be a shift in environmental parameters along with changes in the ... -
Manipulating galectin expression in zebrafish (Danio rerio)
(Springer, 2015)Techniques for disrupting gene expression are invaluable tools for the analysis of the biological role(s) of a gene product. Because of its genetic tractability and multiple advantages over conventional mammalian models, ... -
Developmental characters of Pseitina iijimae (Jordan and Starks), bothid flat fishes- pisces
(Indian Fisheries Association, 1989)Post larval stages of Psettina iQimae (Jordan and Starks) ranging from 1.8 mm NL to 44.6 mm SL collected during Naga Expedition and International Indian Ocean Expedition (JIOE) are described The characteristics which help ... -
Sea level flactuations during last 15000 years and their impact on human settlements
(Hyderabad: Institute of Scientific Research on Vedas (I-SERVE), 2012) -
Rhodovulum mangrovi sp. nov., a phototrophic alphaproteobacterium isolated from a mangrove forest sediment sample
(International Union of Microbiological Societies, 2014)A novel Gram-staining-negative, purple non-sulfur bacterium, strain AK41T, was isolated from a sediment sample collected from Coringa mangrove forest, Andhra Pradesh, India. A red–brownish-coloured culture was obtained on ... -
Distribution and sources of particulate organic matter in the Indian monsoonal estuaries during monsoon
(American Geophysical Union, 2014)The distribution and sources of particulate organic carbon (POC) and nitrogen (PN) in 27 Indian estuaries were examined during the monsoon using the content and isotopic composition of carbon and nitrogen. Higher phytoplankton ... -
Geologic implications of gas hydrates in the offshore of India: Krishna-Godavari Basin, Mahanadi Basin, Andaman Sea, Kerala-Konkan Basin
(Elsevier, 2014)Gas hydrate resource assessments that indicate enormous global volumes of gas present within hydrate accumulations have been one of the primary driving forces behind the growing interest in gas hydrates.Gas hydrate volumetric ... -
Composition and origin of authigenic carbonates in the Krishna-Godavari and Mahanadi Basins, eastern continental margin of India
(Elsevier, 2014)The mineralogical and stable isotopic composition of authigenic carbonates from the KrishnaeGodavari (KG) and Mahanadi Basin provide a deeper insight into the processes inducing carbonate formation in the sediments of the ... -
Effect of thermal non-equilibrium, seafloor topography and fluid advection on BSR-derived geothermal gradient
(Elsevier, 2014)The seafloor and bottom simulating reflectors (BSRs) are interpreted from the 3D seismic data acquired in Krishna–Godavari (KG) offshore basin in the vicinity of sites drilled/cored during National Gas Hydrate Program ... -
Gas hydrate destabilization and methane release events in the Krishna-Godavari Basin, Bay of Bengal
(Elsevier, 2014)Methane release events have been linked to global warming, alteration of the carbon cycle and influence on biota. However, unequivocal evidence of paleomethane release events are limited. We report several negative carbon ... -
Modified effective medium model for gas hydrate bearing,clay-dominated sediments in the Krishna-Godavari Basin
(Elsevier, 2014)During NGHP-Expedition-01, well logs were obtained for gas hydrate exploration in Krishna-Godavari (KG) offshore basin. These logs coupled with a suitable rock physics model can be used to understand the interaction between ... -
Logging-while-drilling and wireline velocities: Site NGHP-01-10, Krishna-Godavari Basin, India
(Elsevier, 2014)At Site NGHP-01-10, Krishna-Godavari Basin, India, the downhole wireline logging tool measured higher porosity and sonic velocities in gas hydrate-bearing sediments compared to the logging-while-drilling (LWD) acquired ... -
Estimation of seismic attenuation of gas hydrate bearing sediments from multi-channel seismic data: A case study from Krishna-Godavari offshore basin
(Elsevier, 2014)Seismic attenuation of gas hydrate bearing sediments is estimated from the multi-channel seismic data acquired in KrishnaeGodavari (KG) offshore basin in the vicinity of Site NGHP-01-10, where ~128 m of fracture-filled ...