DRS at CSIR-National Institute of Oceanography: Recent submissions
Now showing items 3451-3470 of 9376
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Monsoonal and ENSO impacts on particle fluxes and the biological pump in the Indian Ocean
(American Geophysical Union, 2009)Data obtained by sediment trap experiments in the Indian Ocean were evaluated in conjunction with additional information derived mainly from the Joint Global Ocean Flux Study (JGOFS) expeditions in 1994/1995. Our results ... -
Some implications of Coastal Regulation Zone (CRZ) legislation for the coast of Goa
(Geological Society of Goa, 2009)Since the 1970`s, coastal ecosystems have come under heavy onslaught of tourism and related anthropogenic activities. Lack of guidelines for human intervention along coasts prompted the Ministry of Environment and Forests ... -
Mineralogical and geochemical aspects of the marine sediments off Goa
(Geological Society of Goa, 2009)The state of Goa has a 105 km long ria-type coastline and the morphometric analysis of major rivers indicate submergence of land mass in relation to the offshore region. In the coastal region, mineral assemblage of Morgim ... -
An experiment to restore coastal sand dunes at Miramar beach, Goa: An appraisal
(Geological Society of Goa, 2009)A first ever experiment to re-establish flattened sand dunes was conducted in April 2007 at Miramar beach, Goa. The critical area constitutes a 160 meter long N-S frontal beach strip which is flat, bare, devoid of vegetation, ... -
Impact of the changing ecology on intertidal polychaetes in an anthropogenically stressed tropical creek, India
(Springer, 2009)Polychaete assemblages and associated environment of 12 strategically selected intertidal stations along the extremely polluted Thane creek on the west coast of India were studied monthly for a year and compared with past ... -
Unusual blooms of green Noctiluca miliaris (Dinophyceae) in the Arabian Sea during the winter monsoon
(American Geophysical Union, 2009)A large-scale, ongoing study conducted by the National Institute of Oceanography, India, from 2003 onward in support of India’s ocean color program, has documented for the first time ever the appearance of extensive blooms ... -
Interannual variability of Kelvin wave propagation in the wave guides of the equatorial Indian Ocean, the coastal Bay of Bengal and the southeastern Arabian Sea during 1993-2006
(Elsevier, 2010)The observed variability of the Kelvin waves and their propagation in the equatorial wave guide of the Indian Ocean and in the coastal wave guides of the Bay of Bengal (BoB) and the southeastern Arabian Sea (AS) on seasonal ... -
Paleoclimatic and diagenetic history of the Late Quaternary sediments in a core from the southeastern Arabian Sea: Geochemical and magnetic signals
(The Oceanographic Society of Japan, 2010)Geochemical and rock-magnetic investigations were carried out on a sediment core collected from the SE Arabian Sea at 1420 m depth in oxygenated waters below the present-day oxygen minimum zone. The top 250 cm of the core ... -
Spatio-temporal variability of dinoflagellate assemblages in different salinity regimes in the west coast of India
(Elsevier, 2010)General abundance and species composition of dinoflagellate community in different salinity gradients along the coast of Goa (west coast of India) were studied with a view to understand the annual variations in particular ... -
Determination of rare earth, major and trace elements in authigenic fraction of Andaman Sea (Northeastern Indian Ocean) sediments by inductively coupled plasma-mass spectrometry
(Elsevier, 2010)Downcore variation of rare earth elements (REEs) in the authigenic Fe-Mn oxides of a sediment core (covering a record of last approx. 40 kyr) from the Andaman Sea, a part of the Indian Ocean shows distinctive positive Ce ... -
What drives the biological productivity of the northern Indian Ocean?
(American Geophysical Union, 2009)The northern Indian Ocean consists of two unique tropical basins: the Arabian Sea and the Bay of Bengal. The Arabian Sea is one of the most highly productive regions of the world ocean, while the Bay of Bengal is a basin ... -
Introduction to Indian Ocean biogeochemical processes and ecological variability: Current understanding and emerging perspectives
(American Geophysical Union, 2009)Despite a history of exploration dating back to the classical era and its leading role as a pathway for trade and cultural exchange for the great civilizations of those times, the Indian Ocean has consistently been subject ... -
Distribution and relative quantification of key genes involved in fixed nitrogen loss from the Arabian Sea oxygen minimum zone
(American Geophysical Union, 2009)The Arabian Sea (AS) oxygen minimum zone (OMZ) is one of the largest pelagic low-oxygen environments in the open ocean. It is responsible for the removal of up to 60 Tg of nitrogen annually, roughly an eighth of the global ... -
Seasonal anoxia over the western Indian continental shelf
(American Geophysical Union, 2009)The eastern Arabian Sea contains the only eastern-boundary-type upwelling environment in the entire Indian Ocean, albeit on a seasonal basis. During the southwest monsoon, when the surface current flows equatorward, upwelling ... -
Biophysical processes in the Indian Ocean
(American Geophysical Union, 2009)Basic physical processes that impact biological activity in the Indian Ocean (IO), namely, near-surface processes (upwelling, entrainment, detrainment, and advection) and subsurface circulations (shallow overturning cells ... -
Net community production in the northern Indian Ocean
(American Geophysical Union, 2009)The monthly/seasonal variability in net community production (NCP) is controlled by the monsoon either through increasing nutrients to the euphotic zone or an increase in river runoff in the northern Indian Ocean. Net ... -
Indian Ocean research: Opportunities and challenges
(American Geophysical Union, 2009)Historically, the Indian Ocean (IO) has received relatively little attention from the oceanographic community and therefore remains substantially undersampled compared to the Atlantic and Pacific oceans. This situation is ... -
Is delta sup(15)N of sedimentary organic matter a good proxy for paleodenitrification in coastal waters of the eastern Arabian Sea?
(American Geophysical Union, 2009)Recently published sedimentary records of delta sup(15)N from several coastal areas affected by both natural and anthropogenically produced shallow hypoxia with the objective of testing this as a proxy for denitrification ... -
Southern Ocean seaweeds: A resource for exploration in food and drugs
(Elsevier, 2009)Benthic macroalga or seaweed, a wonder plant in the sea, has been attracting the human mind since centuries. Countries of south and south East Asia have put in extensive use of this plant for various purposes such as food, ... -
Post depositional memory record of mercury in sediment near effluent disposal site of a chlor-alkali plant in Thane Creek-Mumbai Harbour, India
(Taylor & Francis, 2009)A mercury–cell chlor-alkali plant operating at Airoli (eastern bank of Thane Creek) for 40 years, caused widespread contamination of the surrounding environment. Untreated wastewater from the plant was discharged to Thane ...