DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 1151-1170 of 9371
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Aragonite pteropod abundance and preservation records from the Maldives, equatorial Indian Ocean: Inferences on past oceanic carbonate saturation and dissolution events
(2019)During the International Ocean Discovery Program (IODP) Expedition 359, a long continuous carbonate-rich sequence was recovered from the Inner Sea of Maldives. We investigated pteropod proxies (absolute abundance of pteropods ... -
A sustained ocean observing system in the indian ocean for climate related scientific knowledge and societal needs
(2019)The Indian Ocean is warming faster than any of the global oceans and its climate is uniquely driven by the presence of a landmass at low latitudes, which causes monsoonal winds and reversing currents. The food, water, and ... -
Crustal architecture and moho topography beneath the Eastern Indian and bangladesh margins - New insights on rift evolution and the continent-ocean boundary
(2019)The thick sedimentary cover (?18 km) along the Eastern Continental Margin of India (ECMI) and over the Bay of Bengal has hindered understanding of the mechanisms of rifting that operated on the eastern Indian and Bangladesh ... -
Large-scale mass wasting on the Miocene continental margin of western India
(2019)A giant mass-transport complex was recently discovered in the eastern Arabian Sea, exceeding in volume all but one other known complex on passive margins worldwide. The complex, named the Nataraja Slide, was drilled by ... -
Natural decadal sea-level variability in the Indian Ocean: lessons from CMIP models
(2019)Indian Ocean decadal sea-level variability is an active research area, with many unresolved questions due to inadequate observational coverage. In this study, we analyse 26 Coupled Model Intercomparison Project (CMIP) ... -
Assessment of phytoplankton photo-physiological status from a tropical monsoonal estuary
(2019)Assessment of phytoplankton physiological responses to abiotic changes provides valuable insights into the health of an ecosystem. The variable fluorescence (F v = F m -F 0 ), photosynthetic efficiency (F v /F m ), and ... -
Phycoremediation of Hazardous Mixed Industrial Effluent by a Marine Strain of Phormidium sp
(2019)The potential of the marine microalgal isolate Phormidium sp. to detoxify/reduce various pollutants from a highly hazardous mixed industrial effluent (MIE) is evaluated. The microalgae are grown in the MIE at 30% (v/v%) ... -
Assessing the source of oil deposited in the surface sediment of Mormugao Port, Goa - A case study of MV Qing incident
(2019)In June 2016, a cruise vessel was grounded in the Mormugao Port, resulting in unnoticed oil spill. The surface water and sediment samples were collected from the vicinity of the ship, and also an oil sample from the ship ... -
2015-16 ENSO contributed reduction in oil sardines along the Kerala coast, south?west India
(2019)Fishery along the west coast of India largely depends on pelagic fish such as oil sardines, which are dominant during the south?west monsoon. However, the response of sardine population to the warming caused by the climatic ... -
Recent changes in the prominent modes of Indian Ocean dipole in response to the tropical Pacific Ocean SST patterns
(2019)The present study examines the prominent patterns of Indian Ocean dipole (IOD) associated with the recent changes in the Pacific Ocean variability centered around 1998. EOF analysis of boreal fall (September through November ... -
Modelling of internal tides in the western Bay of Bengal: Characteristics and Energetics
(2019)Generation and propagation of internal tides in the western Bay of Bengal (BoB) are investigated using observations from Acoustic Doppler Current Profilers and simulations from a very high resolution numerical ocean model. ... -
Variability of intraseasonal oscillations and synoptic signals in sea surface salinity in the Bay of Bengal
(2019)Intraseasonal oscillations (ISOs) significantly impact southwest monsoon precipitation and Bay of Bengal (BoB) variability. The response of ISOs in sea surface salinity (SSS) to those in the atmosphere is investigated in ... -
Spatio-temporal variations in sulfur-oxidizing and sulfate-reducing bacterial activities during upwelling, off south-west coast of India
(2019)The Arabian Sea, off SW India, is becoming more anoxic in recent years. Poor ventilation affects microbial degradation of organic matter in oxygen minimum zone (≤2.85 ml l -1 O 2 , ≤0.02µM NO 2 ) and anoxic marine zone ... -
Magnetic Mineralogical Approach for the Exploration of Gas Hydrates in the Bay of Bengal
(2019)We evaluate the environmental magnetic, geochemical, and sedimentological records from three sediment cores from potential methane-hydrate bearing sites to unravel linkages between sedimentation, shale tectonics, magnetite ... -
Seasonal distribution of trace metals in suspended particulate and bottom sediments of four microtidal river estuaries, west coast of India
(2019)The seasonal distribution of metals (V, Cr, Co, Cu, Ni, Zn, Pb, Mn, Fe, Al and Ti) in suspended and bottom sediments of four minor estuaries (Terekhol, Chapora, Sal and Talpona rivers) of Goa, India was investigated to ... -
Organic Nutrients Support High Primary Production in the Bay of Bengal
(2019)The Bay of Bengal (BoB) is known to experience low productivity but high sinking carbon fluxes to the bottom, and this paradox is attributed to mineral ballast of organic matter. We found for the first time that primary ... -
Trajectories of three drifters deployed simultaneously in the northeastern Arabian Sea
(2019)Three drifters were deployed in the northeastern Arabian Sea at (69.18◦E,19.77◦N). They were released roughly at the same time on 29 November 2016. The three drifters, initially moved poleward along the direction of the ... -
Vestiges of older greenstone in Mesoarchaean Chakradharpur granite gneiss, Singhbhum Craton, India: Implications for plume-lithosphere interaction at rifted cratonic margin
(2019)The Chakradharpur granite gneiss (CGG) represents an uplifted Archaean basement within the North Singhbhum Orogen (NSO) of Singhbhum-Orissa Craton in the eastern Indian shield and shares a Mesoarchaean 3.12�Ga age equivalent ... -
Buried channels provide keys to infer Quaternary stratigraphic and paleo-environmental changes: A case study from the west coast of India
(2019)High resolution shallow seismic data was acquired from inner continental shelf of Goa, west coast of India to map underlying stratigraphic and buried geomorphic features of shelf strata. Seismic data revealed characteristic ... -
The community structure of the deep-sea nematode community associated with polymetallic nodules in the Central Indian Ocean Basin
(2019)Technological advances have led to an increase in the number of investigations in the deep sea over the last two decades. However, despite a large number of scientific cruises, few published data on the nematode biodiversity ...