DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 6041-6060 of 9443
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Research opportunities and challenges in the Indian Ocean
(American Geophysical Union, 2008)The Indian Ocean is a dynamically complex and highly variable system, with circulation features and biogeochemical properties that are unusual in many respects. Yet the Indian Ocean (IO) remains one of the most under-sampled ... -
Influence of environmental settings on the prevalence of Trichodesmium spp. in the Bay of Bengal
(Inter Research, 2008)Trichodesmium, an important marine nitrogen-fixing cyanobacteria, is widespread in tropical waters and contributes substantially to the global chemical cycles by new production. The interesting and intriguing feature of ... -
Hydrographic characterization of southeast Arabian Sea during the wane of southwest monsoon and spring intermonsoon
(Springer, 2008)Seasonal variation of the hydrography along the southeast Arabian Sea is described using data collected onboard FORV Sagar Sampada in September-October 2003 (later phase of Southwest monsoon, SWM) and March-April 2004 ... -
Response of infaunal macrobenthos to the sediment granulometry in a tropical continental margine southwest coast of India
(Elsevier, 2008)Surficial sediment samples, collected from the continental margin of the southwest coast of India in July 2004, were examined for the grain size and soft-bottom macrobenthic fauna, to understand the sediment granulometry ... -
Seafloor characterization using time-dependent acoustic backscatter: Study at Arabian Sea
(IEEE, 2008)This paper presents application of `inversion modeling` technique to echo shape data acquired shallow water regions off Goa. The estimated sediment and seafloor roughness parameter for two different frequencies (33 and 210 ... -
A novel method of generating and remembering international morse codes
(IETE Goa Sub-Centre, 2006)A novel method of generating and remembering International Morse Code is presented in this paper The method requires only memorizing 4 key sentences and requires knowledge of writing binary equivalents of decimal numerals ... -
Role of eddies in the Bay of Bengal circulation and hydrography and in the distribution of nutrients and chlorophyll
(2007)Eddies are ubiquitous in the ocean and are products of geophysical turbulence. They develop from the hydrodynamic instabilities and are known to alter the physical and biochemical properties of the ocean. In the north ... -
Influence of net ecosystem metabolism in transferring riverine organic carbon to atmospheric CO2 in a tropical coastal lagoon (Chilka Lake, India)
(Springer, 2008)Studies on biogeochemical cycling of carbon in the Chilka Lake, Asia’s largest brackish lagoon on the east coast of India, revealed, for the first time, strong seasonal and spatial variability associated with salinity ... -
Sediment concentration and bed form structures of Gulf of Cambay from remote sensing
(Taylor & Francis, 2008)The continental shelf on the west coast of India is the widest off Mumbai, Maharashtra, India and leads to a strongly converging channel, the Gulf of Cambay (GoC). Tides in this Gulf are the largest on the Indian coast. ... -
Relationship between chemical composition and magnetic susceptibility in sediment cores from Central Indian Ocean Basin
(Indian Academy of Sciences, 2008)Three sediment cores in a north–south transect (3 degrees N to 13 degrees S) from different sediment types of the Central Indian Ocean Basin (CIOB) are studied to understand the possible relationship between magnetic ... -
Anoxia over the western continental shelf of India: Bacterial indications of intrinsic nitrification feeding denitrification
(Elsevier, 2008)Studies on the Arabian Sea coastal anoxia have been of immense interest, but despite its ecological significance there is sparse understanding of the microbes involved. Hence, observations were carried out off Goa (15 ... -
Brevibacterium oceanic sp. nov., isolated from deep-sea sediment of the Chagos Trench, Indian Ocean
(The Society for General Microbiology, 2008)Two bacterial strains, designated BBH5 and BBH7 sup(T), were isolated from a deep-sea sediment sample collected from the Chagos Trench of the Indian Ocean (11 degrees 6 minutes S 72 degrees 31 minutes E). Based on their ... -
Seasonal variability of the observed barrier layer in the Arabian Sea
(American Meteorological Society, 2008)The formation mechanisms of the barrier layer (BL) and its seasonal variability in the Arabian Sea (AS) are studied using a comprehensive dataset of temperature and salinity profiles from Argo and other archives for the ... -
Ecology of coccolithophores in the Indian sector of the Southern Ocean
(Elsevier, 2008)The ecology of coccolithophores (including species’ absolute abundance) in the water column (0-200 m) was studied in the Indian sector of the Southern Ocean, along the 45 degrees E meridian south of Madagascar to Antarctica, ... -
Hydrodynamic and geomorphic controls on the morphology of an island ecosystem in the Vembanad Lake, West Coast of India
(The Coastal Education and Research Foundation, 2008)Textural characteristics of the surficial sediments around Perumbalam Island located within the Vembanad Lake, southwest coast of India, were studied on a seasonal basis to understand the geomorphic response of the region. ... -
Carbohydrates, uronic acids and alkali extractable carbohydrates in contrasting marine and estuarine sediments: Distribution, size fractionation and partial chemical characterization
(Elsevier, 2008)Concentration, size fractionation and monosaccharide composition of carbohydrates and uronic acids were investigated in contrasting sediments of the Mandovi estuary (ME), Arabian Sea (AS) and the Bay of Bengal (BOB). ... -
Purification and characterization of a T-antigen specific lectin from the coelomic fluid of a marine invertebrate, sea cucumber (Holothuria scabra)
(Elsevier, 2008)A novel lectin was purified from the coelomic fluid of the sea cucumber Holothuria scabra (HSL), subjected to bacterial challenge. HSL is a monomeric glycoprotein of molecular mass 182 kDa. The lectin is highly thermostable ... -
Step-up multiple regression model to compute Chlorophyll a in the coastal waters off Cochin, southwest coast of India
(Springer-Verlag, 2008)The interaction effects of abiotic processes in the production of phytoplankton in a coastal marine region off Cochin are evaluated using multiple regression models. The study shows that chlorophyll production is not limited ... -
Seasonal variation of microzooplankton (20-200 mu m) and its possible implications on the vertical carbon flux in the western Bay of Bengal
(Elsevier, 2008)Stratification (throughout the year) and low solar radiation (during monsoon periods) have caused low chlorophyll a and primary production (seasonal average 13-18 mg m sup(-2) and 242-265 mg C m sup(-2) d sup(-1), respectively) ... -
Dinoflagellates in a mesotrophic, tropical environment influenced by monsoon
(Elsevier, 2008)The changes in dinoflagellate community structure in both e the water column and sediment in a mesotrophic, tropical port environment were investigated in this study. Since the South West Monsoon (SWM) is the main source ...