DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 2171-2190 of 9371
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Phylogenetic analyses and nitrate-reducing activity of fungal cultures isolated from the permanent, oceanic oxygen minimum zone of the Arabian Sea
(NRC Research Press, 2015)Reports on the active role of fungi as denitrifiers in terrestrial ecosystems have stimulated an interest in the study of the role of fungi in oxygen-deficient marine systems. In this study, the culturable diversity of ... -
Hydrothermal Fe cycling and deep ocean organic carbon scavenging: Model-based evidence for significant POC supply to seafloor sediments
(Elsevier, 2015)Submarine hydrothermal venting has recently been identified to have the potential to impact ocean biogeochemistry at the global scale. This is the case because processes active in hydrothermal plumes are so vigorous that ... -
Mineralogy and Sr–Nd isotopes of SPM and sediment from the Mandovi and Zuari estuaries: Influence of weathering and anthropogenic contribution
(Elsevier, 2015)Clay minerals and Sr–Nd isotopes of suspended particulate matter (SPM) and bottom sediment were investigated along transect stations of the Mandovi and Zuari estuaries, western India to determine the provenance and role ... -
Identification of Balanus amphitrite larvae from field zooplankton using species-specific primers
(Marine Biological Association of the United Kingdom, 2015)Identification of marine invertebrate larvae using morphological characters is laborious and complicated by phenotypic plasticity. Balanus amphitrite is a dominant barnacle, important in the context of intertidal ecology ... -
Timing and preservation mechanism of deglacial pteropod spike from the Andaman Sea, northeastern Indian Ocean
(John Wiley, 2015)The aragonite compensation depth (ACD) fluctuated considerably during the last glacial until the Holocene with a dominant pteropod preservation spike during the deglacial period, which is prominently seen in three well-dated ... -
In vitro and in vivo evaluation of the marine sponge skeleton as a bone mimicking biomaterial
(Royal Society of Chemistry, 2015)This investigation was carried out to identify and characterize marine sponges as potential bioscaffolds in bone tissue engineering. The marine sponge (Biemna fortis) samples were collected from the rocky intertidal region ... -
Geochemical partitioning of Cu and Ni in mangrove sediments: Relationships with their bioavailability
(Elsevier, 2015)Sequential extraction study was performed to determine the concentrations of non-residual metal-complexes in the mangrove sediments from the Divar Island, (west coast of India). Accumulation of metal in the mangrove roots ... -
Tracing the strength of the southwest monsoon using boron isotopes in the eastern Arabian Sea
(American Geophysical Union, 2015)Here we present the first boron isotope-based pCO<sub>2</sub><sup>sw</sup> (pCO<sub>2</sub> of seawater) reconstruction from the eastern Arabian Sea using the planktic foraminifera species Globigerinoides ruber. Our results ... -
Exploring rhizosphere bacteria of Eichhornia crassipes for metal tolerance and biological activity
(GSTF, 2015)With urbanization and rapid industrial progress, water bodies around the world are getting highly polluted with metals. Bacteria have evolved several mechanisms to adapt to heally metal contaminants thus representing a ... -
Formation of methane-related authigenic carbonates in a highly dynamic biogeochemical system in the Krishna–Godavari Basin, Bay of Bengal
(Elsevier, 2015)We report the abundant occurrence of authigenic Fe-rich carbonate, high Mg-calcite (HMC) and low Mg-calcite from 11 cores recovered from the Krishna–Godavari Basin (K–G Basin), Bay of Bengal. The cores were collected as ... -
A new subspecies of Phascolion Theel, 1875 (Sipuncula: Golfingiidae) from Indian waters
(Magnolia Press, 2015)A new subspecies of Phascolion pacificum Murina, 1957 is described from shallow waters (15–20 m deep) off Malvan and Ratnagiri in India. Phascolion pacificum denticulatum ssp. nov. is characterized by the presence of a ... -
Secondary calcification of planktic foraminifera from the Indian sector of Southern ocean
(Geological Society of China, 2015)This study focused on planktic foraminifera in plankton tows and surface sediments from the western Indian sector of Southern Ocean in order to evaluate the potential foraminiferal secondary calcification and/or dissolution ... -
Sea-level-rise trends off the Indian coasts during the last two decades
(Current Science Association, 2015)The present communication discusses sea-level-rise trends in the north Indian Ocean, particularly off the Indian coasts, based on estimates derived from satellite altimeter and tide-gauge data. Altimeter data analysis over ... -
Science and Policy
(Current Science Association, 2015)A report on the meeting `Policy for Science and Science for Policy’ held at the National Institute of Advanced Studies, Bengaluru between 15 and 19 December 2014. -
Deproteination of shrimp shell wastes using immobilized marine associated pseudomonad Amet1776
(Oriental Scientific Publishing, 2015)Chitin is a naturally abundant amino polysaccharide found in the shell of crustaceans, insects etc. It has become of great interest because of their biological, industrial and biomedical applications. Shrimp by product has ... -
Flavonoids from Rhizophora conjugata fruit extract blocks virulence factors of Pseudomonas aeruginosa
(GSTF, 2015)Pseudomonas aeruginosa is a major nosocomial pathogen which causes hospital acquired infections and recently has gained importance as a model to study antibiotic resistance. In the present study, we investigated the effect ... -
Disseminated sulphides in basalts from the northern central Indian ridge: Implications on late-stage hydrothermal activity
(Springer, 2015)This study examined the mineralogy and mineral chemistry of disseminated sulphides (mainly chalcopyrite-pyrite) in partly altered basalts from the northern Central Indian Ridge, Indian Ocean in order to understand the role ... -
Sources, distribution and preservation of organic matter in a tropical estuary (Godavari, India)
(Springer, 2015)Major sources and distribution of organic matter (OM) were examined in a tropical monsoonal estuary, the Godavari, using content and isotopic signatures in suspended particulate matter and surface sediments during no-discharge ... -
Apparent grazing losses of Labyrinthulomycetes protists in oceanic and coastal waters: An experimental elucidation
(Springer, 2015)Labyrinthulomycetes are unicellular eukaryotes known for their ability to synthesize polyunsaturated fatty acids that are essential for growth and development of zooplankton. But relationship of these microorganisms with ... -
Bacterial domination over Archaea in ammonia oxidation in a monsoon-driven tropical estuary
(Springer, 2015)Autotrophic ammonia oxidizing microorganisms,which are responsible for the rate-limiting step of nitrification in most aquatic systems, have not been studied in tropical estuaries. Cochin estuary (CE) is one of the largest, ...