DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 7001-7020 of 9429
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Purification and characterization of thermoalkalophilic xylanase isolated from the Enterobacter sp. MTCC 5112
(Elsevier, 2006)Thermoalkalophilic Enterobacter sp MTCC 5112 was isolated from a sediment sample collected from the Mandovi estuary, west coat of India. This culture produced extracellular xylanase. The xylanase enzyme was isolated by ... -
Pink-line syndrome, a physiological crisis in the scleractinian coral Porites lutea
(Springer-Verlag, 2006)Coral diseases are one of the major factors that alter coral cover and their diversity. We have earlier reported the “Pink-line syndrome” (PLS) in the scleractinian coral Porites lutea wherein a colored band appears between ... -
Are eddies nature’s trigger to enhance biological productivity in the Bay of Bengal?
(American Geophysical Union, 2004)The Bay of Bengal is traditionally considered to be a less productive basin compared to the Arabian Sea. Despite the contrasting chlorophyll and primary productivity pattern, sediment trap data shows that annual fluxes of ... -
Increased formation of carcinogenic PAH metabolites in fish promoted by nitrite
(Elsevier, 2006)Nitrite (NO2−), a highly reactive chemical species, accumulates in coastal waters as a result of pollution with nitrogenous waste and/or an imbalance in the bacterial processes of nitrification and denitrification. The ... -
Why is the Bay of Bengal less productive during summer monsoon compared to the Arabian Sea?
(American Geophysical Union, 2002)The Bay of Bengal is traditionally considered to be a less productive basin compared to the Arabian Sea. We explore the reasons for this in the central Bay during summer when both are subjected to strong monsoon forcing. ... -
Intrusion of the Bay of Bengal water into the Arabian Sea during winter monsoon and associated chemical and biological response
(American Geophysical Union, 2004)Situated in similar latitudes and subjected to similar atmospheric forcing, the tropical basins of the Arabian Sea looses fresh water due to excess evaporation over precipitation while Bay of Bengal receives freshwater via ... -
Seasonal Variation of Diurnal Cycle of Rainfall in the Eastern Equatorial Indian Ocean
(SpringerLink, 2006)The diurnal cycle of rainfall over the eastern equatorial Indian Ocean is studied for the period 23rd October 2001 to 31st October 2003 using the hourly data from the Triton buoy positioned at 1.5°S and 90°E. An analysis ... -
Impact of convection over the equatorial trough on the summer monsoon activity over India
(Taylor & Francis, 2005)The cause for the disruption of rainfall (break in monsoon conditions) over the Indian subcontinent during the monsoon months, for the period, 1979 – 1998, are investigated using the pentad rainfall data from the Global ... -
Preamble to marine microbiology: Facets and opportunities
(Goa: National Inst of Oceanography, 2004)The book titled 'Marine Microbiology: Facets & Opportunities' is an attempt to bring together some facets of marine microbiology as have been made out by many contemporaries in particular from the tropical marine regions. ... -
Sedimentation of Particulate Organic Matter in the Dona Paula Bay, West Coast of India during November to May 1995-97.
(Estuarine Research Federation, USA, 2000)Data on hydrography, nutrients, suspended and sedimented particles were collected at weekly interval from November to May during 1995 to 1997 at a station in the coastal waters of Dona Paula Bay. Suspended and sedimented ... -
Biotransformation of citrinin to decarboxycitrinin using an organic solvent-tolerant marine bacterium, Moraxella sp. (MB1)
(Springer, 2006)Organic solvent tolerant microorganisms (OSTM) are novel group of extremophilic microorganisms that have developed resistance to withstand solvent toxicity. These organisms play an important role in biotransformation of ... -
Air Sea Interaction Over the Indian Ocean During the Contrasting Monsoon Years 2002 and 2003
(American Geophysical Union, 2005)The air sea interaction processes over the Indian Ocean are studied using the satellite data from the Tropical Rainfall Measuring Mission Satellite for two contrasting monsoon years, namely 2002 (deficit) and 2003 (normal). ... -
Anomalous inland influx of the River Indus, Gulf of Kachchh, India
(Elsevier, 2006)The Gulf of Kachchh is a funnel shaped, macrotidal water body located in the arid region of northwestern India with ~ 50 cm annual rainfall and insignificant fluvial input. The Gulf waters, however, have high-suspended ... -
Bacterial extracellular polymeric substances (EPS): A carrier of heavy metals in the marine food-chain
(Elsevier, 2006)The ecological implications of metal binding properties of bacterial EPS and its possible role in the bioaccumulation of pollutants in the marine food-chain was investigated using a partially purified and chemically ... -
Comment on "The Great Sumatra-Andaman Earthquake of 26 December 2004"
(American Association for the Advancement of Science, 2005)Lay et al. (Special Section, 20 May 2005, p.1127) estimated a 600-km length for the tsunami source region. Adding tide-gauge data from Paradip, the northernmost of the Indian east-coast stations and therefore the most ... -
Impact of sea breeze on the wind-seas off Goa, west coast of India
(Indian Academy of Sciences, 2006)After withdrawal of the Indian Summer Monsoon and until onset of the next monsoon, i.e. roughly during November-May, winds in the coastal region of India are dominated by sea breeze. It has an impact on the daily cycle of ... -
Algal Bloom: Boon or Bane?
(NISCAIR, CSIR, 2006)Algal blooms occur in response to nutrient deplete or replete conditions. Nitrogen fixing forms proliferate under oligotrophic conditions when nutrient levels are low. Replete conditions in response to upwelling creates ... -
Dynamics of transparent exopolymeric particles (TEP) and particle-associated carbohydrates in the Dona Paula bay, west coast of India
(Indian National Science Academy, 2006)Surface seawater samples were collected over a period 33 of 27 months at a shallow water station in Dona Paula bay from 1998-2000. The samples were analyzed to assess the seasonal variations, inter-annual variability and ... -
Studies on some aspects of marine microbial exopolysaccharides
(2003)In this thesis, a study on the dynamics of three types of EPS viz. NaClsoluble EPS, EDTA-soluble EPS and TEP was carried out at a shallow tropical station at the Dona Paula Bay, west coast of India during 1998-2000. During ... -
Computation of aquatic primary production: Extended formalism to include effect of angular and spectral distribution of light
(American Society of Limnology and Oceanography, 1989)With a new spectral model of the underwater light field and an extended formalism for the light-saturation curve, it is shown that the angular distribution of-underwater light has to be considered to account correctly for ...