DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 3011-3030 of 9376
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Paired measurements of foraminiferal delta 18 O and Mg/Ca ratios of Indian monsoons reconstructed from Holocene to Last Glacial record
(Geological Society of China, 2011)The effect of seasonally reversing monsoons in the northern Indian Ocean is to impart significant changes in surface salinity (SS). Here, we report SS changes during the last 32 kyr in the Lakshadweep Sea (southeastern ... -
A novel halotolerant xylanase from marine isolate Bacillus subtilis cho40: gene cloning and sequencing
(Elsevier, 2011)A novel halotolerant xylanase from marine bacterium Bacillus subtilis cho40 isolated from Chorao island of Mandovi estuary Goa, India has been reported. Extracellular xylanase was produced by using agricultural residue ... -
Textural characteristics of foreshore sediments along Karnataka shoreline, west coast of India
(Elsevier, 2011)Grain character analysis of beach sediments along three selected beaches (Pavinkurve, Kundapura and Padukare) of Karnataka coast, west coast of India is carried out to identify the textural behavior of beach sediments ... -
The relationship between volatile halocarbons and phytoplankton pigments during a Trichodesmium bloom in the coastal eastern Arabian Sea
(Elsevier, 2011)Eukaryotic phytoplankton such as diatoms and prymnesiophytes produce biogenic halocarbons in the ocean that serve as important sources of chlorine and bromine to the atmosphere, but the role of cyanobacteria in halocarbon ... -
Trapped waves of the 27 November 1945 Makran tsunami: observations and numerical modeling
(Springer, 2011)The 27 November 1945 earthquake in the Makran Subduction Zone triggered a destructive tsunami that has left important problems unresolved. According to the available reports, high waves persisted along the Makran coast and ... -
Micrometeorites: Extraterrestrial particulate matter on the earth
(Physical Research Laboratory, India, 2011)About 40,000 tons of cosmic dust rains on the earth every year – this constitutes the sub millimeter extraterrestrial material which is released into the inner solar system either by collisions between asteroidal material ... -
Quinolizidines alkaloids: Petrosin and xestospongins from the sponge Oceanapia sp.
(Indian Academy of Sciences, 2011)A bisquinolizidine alkaloid, petrosin (1) and a series of bis-1-oxaquinolizidine, xestospongins (2–9), were obtained from the ethyl acetate extract of the sponge Oceanapia sp. Petrosin was obtained along with xestospongin- ... -
Ambient iron concentration regulates the sulfate reducing activity in the mangrove swamps of Diwar, Goa, India
(Elsevier, 2011)In order to test the hypothesis that the ambient iron concentrations could regulate sulfate reducing activity (SRA) in mangrove areas, 10 cm cores were examined from test and reference sites. The test site at Diwar mangrove ... -
Deep-sea mining: Economic, technical, technological, and environmental considerations for sustainable development
(Marine Technology Society, 2011)Mining of minerals such as polymetallic nodules from the deep-sea floor has been "on-hold" as a result of several factors such as current availability of Cu, Ni, Co and Mn from terrestrial sources and their fluctuating ... -
Fault system and thermal regime in the vicinity of site NGHP-01-10, Krishna-Godavari basin, Bay of Bengal
(Elsevier, 2011)Drilling/coring activities onboard JOIDES Resolution for hydrate resource estimation have confirmed gas hydrate in the continental slope of Krishna-Godavari (KG) basin, Bay of Bengal and the expedition recovered fracture ... -
A new genus and species of deep-sea glass sponge (Porifera, Hexactinellida, Aulocalycidae) from the Indian Ocean
(Pensoft Publishers, 2011)New hexactinellid sponges were collected from 2589 m depth on the Carlsberg Ridge in the Indian Ocean during deep-sea dredging. All fragments belong to a new genus and species, Indiella gen. n. ridgenensis sp. n., a ... -
Modulation of SST, SSS over northern Bay of Bengal on ISO time scale
(American Geophysical Union, 2011)High resolution observations of atmospheric and oceanic variables are carried out at northern Bay of Bengal from 22nd July to 6th August 2009 on-board ORV Sagar Kanya under the Continental Tropical Convergence Zone research/ ... -
Evidence of slumping/sliding in Krishna-Godavari offshore basin due to gas/fluid movements
(Elsevier, 2011)The Krishna-Godavari (KG) offshore basin is one of the promising petroliferous basins of the eastern continental margin of India. Drilling in this basin proved the presence of gas hydrate deposits in the shallow marine ... -
Iron released from ilmenite mineral sustains a phytoplankton community in microcosms
(Walter de Gruyter, 2011)Natural biotic communities from Kalbadevi Bay were monitored in microcosms (1-l glass flasks) to test the hypothesis that iron released from ilmenite through microbial action contributes to proliferation of phytoplankton. ... -
Comparison of bed shear under non-breaking and breaking solitary waves
(Multi-science, 2011)New experimental measurements of bed shear under solitary waves and solitary bores that represent tsunamis are presented. The total bed shear stress was measured directly using a shear cell apparatus. The solitary wave ... -
Bio-screening of a few green seaweeds from India for their cytotoxic and antioxidant potential
(Society of Chemical Industry, 2011)Seaweeds, raw, cooked, or dried, are used as food in many cultures, although not very popularly in India. Globally, several studies have indicated that seaweeds are a rich source of phenolic compounds and have antioxidant ... -
Variations in phytoplankton community in a monsoon-influenced tropical estuary
(Springer, 2011)In a monsoon-affected tropical estuary, oscillations in freshwater discharge during monsoon shifted the phytoplankton blooms from those adapted to low salinity to high salinity and vice versa. Salinity stratification during ... -
Dinoflagellate community structure from the stratified environment of the Bay of Bengal, with special emphasis on harmful algal bloom species
(Springer, 2011)Harmful algal blooms (HABs) have been documented along the coasts of India and the ill effects felt by society at large. Most of these reports are from the Arabian Sea, west coast of India, whereas its counterpart, the Bay ... -
Influence of river influx on phytoplankton community during fall inter–monsoon in the coastal waters off Kakinada, east coast of India
(NISCAIR (CSIR), 2011)Significant changes in phytoplankton community structure were observed in the coastal waters off Kakinada, India during fall inter-monsoon of 2006 and 2007. River influx was more in October 2007 compared to those in October ... -
Dimensional Relationships in Crassostrea madrasensis (Preston) and C. gryphoides (Schlotheim) in Mangrove Ecosystem
(NISCAIR (CSIR), 2011)Mangrove influenced estuarine habitats in the tropics favor the settlement of oysters and their larval stages, which protect them from strong waves and speedy currents. Shell structure in Bivalves form an important protective ...