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Now showing items 67-86 of 9167
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A comparison of Globigerinoides ruber calcification between upwelling and non-upwelling regions in the Arabian Sea
(Indian Academy of Sciences, 2013)Shell weights of planktonic foraminifera species Globigerinoides ruber in the size range of 300–355 mew m were measured from sediment traps in the western and eastern Arabian Sea which represent upwelling and non-upwelling ... -
A comparison of Mg/Ca ratios in Globigerinoides ruber (white): sensu stricto versus a mixture of genotypes
(Geological Society of India, 2016)Mg/Ca ratios were measured in core AAS9/21 from the eastern Arabian Sea (EAS), on two sets of planktonic foraminifera, one with a mixture of Globigerinoides ruber genotypes (sensu stricto and sensu lato) and the second ... -
A comparison of synthetic aperture radars applied for satellite remote sensing of the ocean surface
(1993)Doppler imaging radars have orbited the earth aboard several spacecraft for the purpose of monitoring the ocean. Oceanographic applications of synthetic aperture radar (SAR) include measuring ocean wave fields, monitoring ... -
A comparison of the efficiency of the bottom samplers used in benthic studies off Cochin
(Springer, 1968)The efficiency of the van Veen and Foerst `Petersen' grabs used in sampling the bottom fauna near the Cochin Harbour area has been compared in two selected stations having different hydrographic and substratic conditions ... -
A comparison of the marine and estuarine benthic fauna of the nearshore regions of the Arabian Sea.
(National Academy of Sciences, India, 1968)The distribution and abundance of the benthic fauna of the Arabian sea were studied in the nearshore region at a depth of 10 fathoms, about 7 miles off Cochin. The results showed that the macrofauna was more abundant than ... -
A comprehensive assessment of macro and microplastics from rivers Ganga and Yamuna: Unveiling the seasonal, spatial and risk factors
(Elsevier, 2024)There have been growing apprehensions and concerns regarding the increasing presence of plastic pollutants in the holiest river of India, the Ganga, and its major tributary, Yamuna. In response to this issue, the current ... -
A comprehensive view of manganese nodules and volcanics of the Central Indian Ocean Basin
(Taylor & Francis, 2008)The Central Indian Ocean Basin (CIOB) is the most studied basin in the Indian Ocean because of the Indian Manganese Nodules program. During the last two and half decades (and also on going), immense efforts have been made ... -
A concise synthesis of (R)-Bgugaine, a pyrrolidine alkaloid from Arisarum vulgare
(Science Reviews 2000 Ltd, 2008)A new short method for the preparation of (R)-Bgugaine (1) has been described using Wittig condensation of a nonstabilised ylide with N-carboethoxy prolinal followed by reduction of double bond and conversion of N-carboethoxy ... -
A critical evaluation of depositional parameters controlling the variability of organic carbon in Arabian Sea sediments
(Elsevier, 1992)Organic carbon distribution in the surficial sediments of the Arabian Sea to some extends mirrors the surface productivity, being both high in the peripheral portions and low in the central region, suggesting that the ... -
A decade of physical and biogeochemical measurements in the Northern Indian Ocean.
(ESA Publication, 2010)The northern Indian Ocean consists of two tropical basins (Arabian Sea and Bay of Bengal) and the equatorial region that comes under the influence of monsoonal wind reversal. We present the results from three Indian ... -
A deductive approach to select or rank journals in multifaceted subject, Oceanography
(Springer, 2012)This study discusses Singleton approach and differential approach for analyzing citations of published literature in oceanography from 30 countries. The ranking correlation of journals showed better positive correlation ... -
A deep-sea bacterium with unique nitrifying property
(Indian Academy of Sciences, 2001)Sediment cores collected from the Central Indian Basin (10°1¢–10°2¢S, 75°59¢–76°2¢E) harboured a high population of nitrifying bacteria which ranged from 103 to 107 cfu per gram dry weight. This high density could contribute ... -
A deep-sea hydrogen peroxide-stable alkaline serine protease from Aspergillus flavus
(Springer Science and Business Media Deutschland GmbH, 2020)We report here the production of an alkaline serine protease by Aspergillus flavus isolated at 5600-m depth from deep-sea sediments of the Central Indian Basin. When grown on defatted groundnut oil meal at 30��C for 48-72�h, ... -
A description of sediment cores from the Arabian Sea
(1972)This study describes in detail the lithologic character of five sediment cores from the Arabian Sea (shelf, slope, and basins) and summarizes the distribution and occurrence of their characteristic lithofacies and biofacies ... -
A device for biofouling studies in estuaries in relation to the tidal cycle
(Indian Association for Limnology and Oceanography, 1985)A device developed for studying the bio-ecological processes in an estuary in relation to the tidal flow is described. The deployment of this device could provide continuous and reliable data which will, not only minimize ... -
A device for continuous microscopic examination of aquatic microorganisms
(CSIR-NISCAIR, 1987)The device consists of a sealed microscopic mount provided with an inlet for liquid medium and an outlet, permitting continuous flow of the liquid. It permits observation of development of marine microorganisms such as ... -
A device for finer-scale sub-sectioning of aqueous sediments
(Indian Academy of Sciences, 2007)A modified hand-operated mechanical device has been developed to facilitate precise sectioning of the aqueous sediment in a core liner. The device allows the core liner to remain vertical on the disk protecting physical, ...